{"id":18330,"date":"2026-07-18T22:13:21","date_gmt":"2026-07-18T13:13:21","guid":{"rendered":"https:\/\/genai-ai.co.jp\/ai-kanri\/?p=18330"},"modified":"2026-07-18T22:13:21","modified_gmt":"2026-07-18T13:13:21","slug":"cc-css-color","status":"publish","type":"post","link":"https:\/\/genai-ai.co.jp\/ai-kanri\/blog\/cc-css-color\/","title":{"rendered":"\u30102026\u5e747\u6708\u6700\u65b0\u3011CSS color\u30d7\u30ed\u30d1\u30c6\u30a3\u5b8c\u5168\u30ac\u30a4\u30c9\uff5c\u6587\u5b57\u8272\u5909\u66f4\u30fbHEX\u30fbRGB\u30fbHSL\u30fb\u30c0\u30fc\u30af\u30e2\u30fc\u30c9\u307e\u3067\u5fb9\u5e95\u89e3\u8aac"},"content":{"rendered":"\n<style>\n.g-flow-row{display:flex;gap:8px;justify-content:center;flex-wrap:wrap;align-items:center;}\n.g-flow-item{background:linear-gradient(135deg,#1a1a1a,#2a1015);color:#fff;border-radius:8px;padding:16px 14px;min-width:130px;flex:1;text-align:center;}\n.g-flow-arrow{color:#dc2626;font-size:20px;font-weight:700;}\n.g-card-row{display:flex;gap:12px;flex-wrap:wrap;margin:0 0 32px;}\n.g-card-row>div{flex:1;min-width:220px;}\n@media(max-width:600px){\n  .g-flow-row{flex-direction:column;}\n  .g-flow-arrow{transform:rotate(90deg);}\n  .g-card-row{flex-direction:column;}\n  .g-card-row>div{min-width:100%;}\n}\n<\/style>\n\n\n\n<div style=\"margin:0 0 32px;\">\n  <img decoding=\"async\" src=\"https:\/\/genai-ai.co.jp\/ai-kanri\/wp-content\/uploads\/2026\/07\/thumb-cc-css-color.jpg\" alt=\"CSS color\u30d7\u30ed\u30d1\u30c6\u30a3\u5b8c\u5168\u30ac\u30a4\u30c9\" style=\"width:100%;height:auto;border-radius:12px;display:block;\">\n<\/div>\n\n\n\n<div style=\"background:#f8f9fa;border-radius:12px;padding:24px 28px;margin:0 0 32px;border-left:4px solid #dc2626;\">\n  <p style=\"font-size:15px;font-weight:700;color:#1a1a1a;margin:0 0 16px;\">\u3053\u306e\u8a18\u4e8b\u306e\u5185\u5bb9<\/p>\n  <ol style=\"margin:0;padding-left:20px;font-size:14px;line-height:2.2;list-style:none;\">\n    <li><a href=\"#sec-01\" style=\"color:#495057;text-decoration:none;\"><span style=\"color:#dc2626;font-weight:700;margin-right:8px;\">01<\/span>CSS\u306ecolor\u30d7\u30ed\u30d1\u30c6\u30a3\u3068\u306f\uff08\u30c6\u30ad\u30b9\u30c8\u8272\u3092\u5909\u3048\u308b\u57fa\u672c\uff09<\/a><\/li>\n    <li><a href=\"#sec-02\" style=\"color:#495057;text-decoration:none;\"><span style=\"color:#dc2626;font-weight:700;margin-right:8px;\">02<\/span>\u30ab\u30e9\u30fc\u540d\uff08red, blue, white\uff09\u3067\u306e\u6307\u5b9a<\/a><\/li>\n    <li><a href=\"#sec-03\" style=\"color:#495057;text-decoration:none;\"><span style=\"color:#dc2626;font-weight:700;margin-right:8px;\">03<\/span>HEX\uff08#ffffff\uff09\u3067\u306e\u6307\u5b9a<\/a><\/li>\n    <li><a href=\"#sec-04\" style=\"color:#495057;text-decoration:none;\"><span style=\"color:#dc2626;font-weight:700;margin-right:8px;\">04<\/span>RGB\uff08rgb(255,0,0)\uff09\u3067\u306e\u6307\u5b9a<\/a><\/li>\n    <li><a href=\"#sec-05\" style=\"color:#495057;text-decoration:none;\"><span style=\"color:#dc2626;font-weight:700;margin-right:8px;\">05<\/span>RGBA\uff08rgba()\uff09\u3067\u900f\u660e\u5ea6\u3092\u8a2d\u5b9a<\/a><\/li>\n    <li><a href=\"#sec-06\" style=\"color:#495057;text-decoration:none;\"><span style=\"color:#dc2626;font-weight:700;margin-right:8px;\">06<\/span>HSL\uff08hsl()\uff09\u3067\u306e\u6307\u5b9a<\/a><\/li>\n    <li><a href=\"#sec-07\" style=\"color:#495057;text-decoration:none;\"><span style=\"color:#dc2626;font-weight:700;margin-right:8px;\">07<\/span>\u4e3b\u8981\u30ab\u30e9\u30fc\u30b3\u30fc\u30c9\u4e00\u89a7\u8868<\/a><\/li>\n    <li><a href=\"#sec-08\" style=\"color:#495057;text-decoration:none;\"><span style=\"color:#dc2626;font-weight:700;margin-right:8px;\">08<\/span>color\u30d7\u30ed\u30d1\u30c6\u30a3\u306e\u7d99\u627f\u3068\u7279\u6b8a\u6027\uff08specificity\uff09<\/a><\/li>\n    <li><a href=\"#sec-09\" style=\"color:#495057;text-decoration:none;\"><span style=\"color:#dc2626;font-weight:700;margin-right:8px;\">09<\/span>\u30c6\u30ad\u30b9\u30c8\u88c5\u98fe\u3068\u306e\u7d44\u307f\u5408\u308f\u305b<\/a><\/li>\n    <li><a href=\"#sec-10\" style=\"color:#495057;text-decoration:none;\"><span style=\"color:#dc2626;font-weight:700;margin-right:8px;\">10<\/span>\u30c0\u30fc\u30af\u30e2\u30fc\u30c9\u5bfe\u5fdc\uff08prefers-color-scheme\uff09<\/a><\/li>\n    <li><a href=\"#sec-11\" style=\"color:#495057;text-decoration:none;\"><span style=\"color:#dc2626;font-weight:700;margin-right:8px;\">11<\/span>\u30a2\u30af\u30bb\u30b7\u30d3\u30ea\u30c6\u30a3\uff1a\u30b3\u30f3\u30c8\u30e9\u30b9\u30c8\u6bd4\u306e\u91cd\u8981\u6027<\/a><\/li>\n    <li><a href=\"#sec-12\" style=\"color:#495057;text-decoration:none;\"><span style=\"color:#dc2626;font-weight:700;margin-right:8px;\">12<\/span>Claude Code\u3067\u914d\u8272\u3092\u81ea\u52d5\u751f\u6210<\/a><\/li>\n    <li><a href=\"#faq\" style=\"color:#495057;text-decoration:none;\"><span style=\"color:#dc2626;font-weight:700;margin-right:8px;\">FAQ<\/span>\u3088\u304f\u3042\u308b\u8cea\u554f<\/a><\/li>\n  <\/ol>\n<\/div>\n\n\n\n<p class=\"wp-block-paragraph\">Web\u30b5\u30a4\u30c8\u3084\u30a2\u30d7\u30ea\u306e\u30c7\u30b6\u30a4\u30f3\u3067\u3001\u6587\u5b57\u306e\u8272\u3092\u5909\u3048\u305f\u3044\u3068\u601d\u3063\u305f\u3053\u3068\u306f\u3042\u308a\u307e\u305b\u3093\u304b\uff1f<br>CSS\u306b\u306f<strong>color\u30d7\u30ed\u30d1\u30c6\u30a3<\/strong>\u3068\u3044\u3046\u6587\u5b57\u8272\u3092\u5236\u5fa1\u3059\u308b\u57fa\u672c\u7684\u306a\u4ed5\u7d44\u307f\u304c\u3042\u308a\u307e\u3059\u3002<br>\u305f\u3063\u305f1\u884c\u306e\u30b3\u30fc\u30c9\u3067\u3001\u30c6\u30ad\u30b9\u30c8\u306e\u8272\u3092\u81ea\u7531\u81ea\u5728\u306b\u5909\u3048\u3089\u308c\u307e\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u300cCSS\u306e\u66f8\u304d\u65b9\u304c\u3088\u304f\u308f\u304b\u3089\u306a\u3044\u300d\u300c\u30ab\u30e9\u30fc\u30b3\u30fc\u30c9\u3063\u3066\u4f55\uff1f\u300d<br>\u305d\u3093\u306a\u7591\u554f\u3092\u6301\u3063\u3066\u3044\u308b\u975e\u30a8\u30f3\u30b8\u30cb\u30a2\u306e\u65b9\u3067\u3082\u3001\u3053\u306e\u8a18\u4e8b\u3092\u8aad\u3081\u3070<br><strong>color\u30d7\u30ed\u30d1\u30c6\u30a3\u306e\u4f7f\u3044\u65b9\u3092\u5b8c\u5168\u306b\u7406\u89e3\u3067\u304d\u307e\u3059\u3002<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u30ab\u30e9\u30fc\u540d\u30fbHEX\u30fbRGB\u30fbRGBA\u30fbHSL\u2014\u20145\u7a2e\u985e\u306e\u8272\u6307\u5b9a\u65b9\u6cd5\u304b\u3089\u3001<br>\u30c0\u30fc\u30af\u30e2\u30fc\u30c9\u5bfe\u5fdc\u30fb\u30a2\u30af\u30bb\u30b7\u30d3\u30ea\u30c6\u30a3\u30fbClaude Code\u306b\u3088\u308b\u914d\u8272\u81ea\u52d5\u5316\u307e\u3067\u3001<br>\u73fe\u5834\u3067\u4f7f\u3048\u308b\u77e5\u8b58\u3092\u5fb9\u5e95\u89e3\u8aac\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<div class=\"balloon-wrap\">\n  <div class=\"balloon-icon\">\n    <img decoding=\"async\" src=\"https:\/\/genai-ai.co.jp\/ai-kanri\/wp-content\/uploads\/2026\/04\/ceo-sugasawa.jpg\" alt=\"\u4ee3\u8868\u83c5\u6fa4\">\n    <span class=\"balloon-name\">\u4ee3\u8868\u83c5\u6fa4<\/span>\n  <\/div>\n  <div class=\"balloon-body\">Web\u30b5\u30a4\u30c8\u306e\u6587\u5b57\u8272\u3092\u5909\u3048\u305f\u3044\u3060\u3051\u306a\u306e\u306b\u3001\u3069\u3053\u306b\u66f8\u3051\u3070\u3044\u3044\u304b\u308f\u304b\u3089\u306a\u3044\u2014\u2014\u305d\u3046\u3044\u3046\u58f0\u3092\u3088\u304f\u805e\u304d\u307e\u3059\u3002CSS\u306ecolor\u30d7\u30ed\u30d1\u30c6\u30a3\u306f\u672c\u5f53\u306b\u30b7\u30f3\u30d7\u30eb\u3067\u3001\u4e00\u5ea6\u899a\u3048\u308c\u3070\u4e00\u751f\u4f7f\u3048\u308b\u77e5\u8b58\u3067\u3059\u3088\u3002<\/div>\n<\/div>\n\n\n\n<div class=\"balloon-wrap is-right\">\n  <div class=\"balloon-icon\">\n    <img decoding=\"async\" src=\"https:\/\/genai-ai.co.jp\/ai-kanri\/wp-content\/uploads\/2026\/04\/yamazaki-avatar.png\" alt=\"AI\u9b3c\u7ba1\u7406\u5c71\u5d0e\">\n    <span class=\"balloon-name\">AI\u9b3c\u7ba1\u7406\u5c71\u5d0e<\/span>\n  <\/div>\n  <div class=\"balloon-body\">\u3053\u306e\u8a18\u4e8b\u3067\u306f\u3001\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0\u521d\u5fc3\u8005\u306e\u65b9\u3067\u3082\u7406\u89e3\u3067\u304d\u308b\u3088\u3046\u3001\u5177\u4f53\u7684\u306a\u30b3\u30fc\u30c9\u4f8b\u3092\u305f\u304f\u3055\u3093\u7d39\u4ecb\u3057\u307e\u3059\u3002\u30b3\u30fc\u30c9\u304c\u82e6\u624b\u306a\u65b9\u3082\u5b89\u5fc3\u3057\u3066\u3064\u3044\u3066\u304d\u3066\u304f\u3060\u3055\u3044\u3002<\/div>\n<\/div>\n\n\n<div style=\"margin:48px 0 8px;display:flex;gap:12px;justify-content:center;flex-wrap:wrap;\"><a href=\"https:\/\/aikanri.genai-ai.co.jp\/seminar2-blog\/?utm_source=blog&#038;utm_medium=h2banner&#038;utm_content=cc-css-color&#038;blog_slug=cc-css-color\" target=\"_blank\" rel=\"noopener\" aria-label=\"Claude Code \u5b8c\u5168\u89e3\u8aac\u30bb\u30df\u30ca\u30fc\uff08\u7121\u6599\u30fb1on1\u30fb60\u5206\uff09\u306e\u4e88\u7d04\u753b\u9762\u3078\" style=\"flex:1 1 280px;max-width:360px;text-decoration:none;\"><img decoding=\"async\" src=\"https:\/\/genai-ai.co.jp\/ai-kanri\/wp-content\/uploads\/2026\/05\/cta_seminar_claude_code_2026.jpg\" alt=\"Claude Code \u5b8c\u5168\u89e3\u8aac\u30bb\u30df\u30ca\u30fc\uff5c\u7d4c\u55b6\u8005\u30fb\u4f1a\u793e\u5f79\u54e1\u5c02\u7528 1on1 60\u5206 \u7121\u6599\" style=\"width:100%;height:auto;border-radius:8px;display:block;\"><\/a><a href=\"https:\/\/aikanri.genai-ai.co.jp\/?utm_source=blog&#038;utm_medium=h2banner&#038;utm_campaign=cc-css-color&#038;utm_content=h2-banner-kanri\" target=\"_blank\" rel=\"noopener\" aria-label=\"AI\u9b3c\u7ba1\u7406 \u516c\u5f0f\u30b5\u30a4\u30c8\u3078\" style=\"flex:1 1 280px;max-width:360px;text-decoration:none;\"><img decoding=\"async\" src=\"https:\/\/genai-ai.co.jp\/ai-kanri\/wp-content\/uploads\/2026\/05\/cta_blog_1to1.jpg\" alt=\"Claude Code\u3092\u7d4c\u55b6\u306b\u6d3b\u304b\u3057\u305f\u3044\u65b9\u3078 \u2014 AI\u9b3c\u7ba1\u7406\" style=\"width:100%;height:auto;border-radius:8px;display:block;\"><\/a><\/div>\n\n\n<div id=\"sec-01\"><\/div>\n<h2 class=\"section-header-img\" style=\"margin:32px 0 24px;border-radius:8px;overflow:hidden;background:linear-gradient(135deg,#1a1a1a 0%,#2a1015 100%);padding:32px 28px;color:#fff;position:relative;border:none;border-left:none;text-align:left;\">\n  <span class=\"section-number\" style=\"display:block;\">01<\/span>\n  <span class=\"section-label\" style=\"display:block;\">BASICS<\/span>\n  <span class=\"section-title\" style=\"display:block;\">CSS\u306ecolor\u30d7\u30ed\u30d1\u30c6\u30a3\u3068\u306f<\/span>\n  <span class=\"section-desc\">\u30c6\u30ad\u30b9\u30c8\u8272\u3092\u5909\u3048\u308b\u57fa\u672c<\/span>\n<\/h2>\n\n\n\n<div style=\"background:#f8f9fa;border-left:4px solid #6b7280;border-radius:0 8px 8px 0;padding:16px 20px;margin:20px 0;\"><p style=\"margin:0 0 4px;font-size:13px;font-weight:700;color:#6b7280;letter-spacing:1px;\">&#128218; \u7528\u8a9e\u89e3\u8aac<\/p><p style=\"margin:0;font-size:15px;line-height:1.7;\"><strong>CSS\u306ecolor\u30d7\u30ed\u30d1\u30c6\u30a3<\/strong>\uff1aHTML\u8981\u7d20\u5185\u306e\u30c6\u30ad\u30b9\u30c8\uff08\u6587\u5b57\uff09\u306e\u8272\u3092\u6307\u5b9a\u3059\u308bCSS\u30d7\u30ed\u30d1\u30c6\u30a3\u3002\u300ccolor: \u8272\u306e\u5024;\u300d\u306e\u5f62\u5f0f\u3067\u8a18\u8ff0\u3057\u3001\u8d64\u30fb\u9752\u30fb\u767d\u306a\u3069\u306e\u30ab\u30e9\u30fc\u540d\u3001#333333\u306e\u3088\u3046\u306aHEX\u30b3\u30fc\u30c9\u3001rgb()\u30fbhsl()\u306a\u3069\u306e\u95a2\u6570\u5f62\u5f0f\u3067\u8272\u3092\u6307\u5b9a\u3067\u304d\u307e\u3059\u3002Web\u30b5\u30a4\u30c8\u306e\u30c7\u30b6\u30a4\u30f3\u306b\u304a\u3044\u3066\u6700\u3082\u57fa\u672c\u7684\u306a\u30b9\u30bf\u30a4\u30eb\u6307\u5b9a\u306e\u4e00\u3064\u3067\u3059\u3002<\/p><\/div>\n\n\n\n<p class=\"wp-block-paragraph\">CSS\u306e<strong>color\u30d7\u30ed\u30d1\u30c6\u30a3<\/strong>\u306f\u3001HTML\u8981\u7d20\u306e\u4e2d\u306b\u3042\u308b\u30c6\u30ad\u30b9\u30c8\u306e\u8272\u3092\u5236\u5fa1\u3057\u307e\u3059\u3002<br>\u300ccolor: red;\u300d\u3068\u66f8\u3051\u3070\u8d64\u8272\u3001\u300ccolor: #333333;\u300d\u3068\u66f8\u3051\u3070\u6fc3\u3044\u30b0\u30ec\u30fc\u8272\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u57fa\u672c\u7684\u306a\u66f8\u304d\u65b9\u306f\u3068\u3066\u3082\u30b7\u30f3\u30d7\u30eb\u3067\u3059\u3002<\/p>\n\n\n\n<div style=\"background:#1e1e1e;border-radius:8px;padding:20px 24px;margin:20px 0;overflow-x:auto;\"><pre style=\"margin:0;color:#d4d4d4;font-family:'Courier New',Courier,monospace;font-size:14px;line-height:1.7;white-space:pre;\">\/* \u57fa\u672c\u7684\u306a\u4f7f\u3044\u65b9 *\/\np { color: red; }\nh1 { color: #333333; }\na { color: rgb(0, 102, 204); }\n.highlight { color: rgba(220, 38, 38, 0.9); }<\/pre><\/div>\n\n\n\n<p class=\"wp-block-paragraph\">\u4e0a\u306e\u4f8b\u3092\u898b\u3066\u304f\u3060\u3055\u3044\u3002<br><code>p { color: red; }<\/code> \u306f\u300cp\u30bf\u30b0\uff08\u6bb5\u843d\uff09\u306e\u6587\u5b57\u3092\u8d64\u306b\u3059\u308b\u300d\u3068\u3044\u3046\u610f\u5473\u3067\u3059\u3002<br>\u30bb\u30ec\u30af\u30bf\u30fc\uff08\u4f55\u306b\uff09\u3001\u30d7\u30ed\u30d1\u30c6\u30a3\uff08\u4f55\u3092\uff09\u3001\u5024\uff08\u3069\u3046\u3059\u308b\uff09\u2014\u2014\u3053\u306e3\u3064\u304cCSS\u8a18\u8ff0\u306e\u57fa\u672c\u3067\u3059\u3002<\/p>\n\n\n\n<table>\n<thead><tr><th>\u8981\u7d20<\/th><th>\u8aac\u660e<\/th><th>\u4f8b<\/th><\/tr><\/thead>\n<tbody>\n<tr><td>\u30bb\u30ec\u30af\u30bf\u30fc<\/td><td>\u8272\u3092\u5909\u3048\u308b\u5bfe\u8c61\u306eHTML\u8981\u7d20<\/td><td>p, h1, .class-name, #id-name<\/td><\/tr>\n<tr><td>\u30d7\u30ed\u30d1\u30c6\u30a3<\/td><td>\u5909\u3048\u308b\u30b9\u30bf\u30a4\u30eb\u306e\u7a2e\u985e<\/td><td>color<\/td><\/tr>\n<tr><td>\u5024<\/td><td>\u5177\u4f53\u7684\u306a\u8272\u306e\u6307\u5b9a<\/td><td>red, #ff0000, rgb(255,0,0)<\/td><\/tr>\n<\/tbody>\n<\/table>\n\n\n\n<div style=\"background:#f0fdf4;border:1px solid #22c55e;border-radius:8px;padding:20px 24px;margin:24px 0;\"><div style=\"display:flex;align-items:center;gap:8px;margin-bottom:12px;\"><span style=\"font-size:18px;\">&#128161;<\/span><strong style=\"color:#16a34a;font-size:15px;\">color\u30d7\u30ed\u30d1\u30c6\u30a3\u304c\u5f71\u97ff\u3059\u308b\u7bc4\u56f2<\/strong><\/div><p style=\"margin:0;font-size:15px;line-height:1.8;color:#333;\">color\u30d7\u30ed\u30d1\u30c6\u30a3\u306f\u30c6\u30ad\u30b9\u30c8\uff08\u6587\u5b57\uff09\u3060\u3051\u3067\u306a\u304f\u3001\u30c6\u30ad\u30b9\u30c8\u306e\u88c5\u98fe\u7dda\uff08text-decoration\uff09\u3084border\uff08\u5883\u754c\u7dda\uff09\u306e\u8272\u306b\u3082\u5f71\u97ff\u3057\u307e\u3059\u3002\u305f\u3060\u3057\u80cc\u666f\u8272\u306fbackground-color\u30d7\u30ed\u30d1\u30c6\u30a3\u3067\u5225\u9014\u6307\u5b9a\u3057\u307e\u3059\u3002<\/p><\/div>\n\n\n\n<div class=\"balloon-wrap is-right\">\n  <div class=\"balloon-icon\">\n    <img decoding=\"async\" src=\"https:\/\/genai-ai.co.jp\/ai-kanri\/wp-content\/uploads\/2026\/04\/yamazaki-avatar.png\" alt=\"AI\u9b3c\u7ba1\u7406\u5c71\u5d0e\">\n    <span class=\"balloon-name\">AI\u9b3c\u7ba1\u7406\u5c71\u5d0e<\/span>\n  <\/div>\n  <div class=\"balloon-body\">color\u30d7\u30ed\u30d1\u30c6\u30a3\u3067\u6307\u5b9a\u3067\u304d\u308b\u300c\u8272\u306e\u5024\u300d\u306b\u306f5\u7a2e\u985e\u3042\u308a\u307e\u3059\u3002\u6b21\u306e\u30bb\u30af\u30b7\u30e7\u30f3\u304b\u3089\u3001\u305d\u308c\u305e\u308c\u3092\u8a73\u3057\u304f\u8aac\u660e\u3057\u3066\u3044\u304d\u307e\u3059\u306d\u3002<\/div>\n<\/div>\n\n\n<div style=\"margin:48px 0 8px;display:flex;gap:12px;justify-content:center;flex-wrap:wrap;\"><a href=\"https:\/\/aikanri.genai-ai.co.jp\/seminar2-blog\/?utm_source=blog&#038;utm_medium=h2banner&#038;utm_content=cc-css-color&#038;blog_slug=cc-css-color\" target=\"_blank\" rel=\"noopener\" aria-label=\"Claude Code \u5b8c\u5168\u89e3\u8aac\u30bb\u30df\u30ca\u30fc\uff08\u7121\u6599\u30fb1on1\u30fb60\u5206\uff09\u306e\u4e88\u7d04\u753b\u9762\u3078\" style=\"flex:1 1 280px;max-width:360px;text-decoration:none;\"><img decoding=\"async\" src=\"https:\/\/genai-ai.co.jp\/ai-kanri\/wp-content\/uploads\/2026\/05\/cta_seminar_claude_code_2026.jpg\" alt=\"Claude Code \u5b8c\u5168\u89e3\u8aac\u30bb\u30df\u30ca\u30fc\uff5c\u7d4c\u55b6\u8005\u30fb\u4f1a\u793e\u5f79\u54e1\u5c02\u7528 1on1 60\u5206 \u7121\u6599\" style=\"width:100%;height:auto;border-radius:8px;display:block;\"><\/a><a href=\"https:\/\/aikanri.genai-ai.co.jp\/?utm_source=blog&#038;utm_medium=h2banner&#038;utm_campaign=cc-css-color&#038;utm_content=h2-banner-kanri\" target=\"_blank\" rel=\"noopener\" aria-label=\"AI\u9b3c\u7ba1\u7406 \u516c\u5f0f\u30b5\u30a4\u30c8\u3078\" style=\"flex:1 1 280px;max-width:360px;text-decoration:none;\"><img decoding=\"async\" src=\"https:\/\/genai-ai.co.jp\/ai-kanri\/wp-content\/uploads\/2026\/05\/cta_blog_1to1.jpg\" alt=\"Claude Code\u3092\u7d4c\u55b6\u306b\u6d3b\u304b\u3057\u305f\u3044\u65b9\u3078 \u2014 AI\u9b3c\u7ba1\u7406\" style=\"width:100%;height:auto;border-radius:8px;display:block;\"><\/a><\/div>\n\n\n<div id=\"sec-02\"><\/div>\n<h2 class=\"section-header-img\" style=\"margin:32px 0 24px;border-radius:8px;overflow:hidden;background:linear-gradient(135deg,#1a1a1a 0%,#2a1015 100%);padding:32px 28px;color:#fff;position:relative;border:none;border-left:none;text-align:left;\">\n  <span class=\"section-number\" style=\"display:block;\">02<\/span>\n  <span class=\"section-label\" style=\"display:block;\">COLOR NAMES<\/span>\n  <span class=\"section-title\" style=\"display:block;\">\u30ab\u30e9\u30fc\u540d\uff08red, blue, white\uff09\u3067\u306e\u6307\u5b9a<\/span>\n  <span class=\"section-desc\">\u3082\u3063\u3068\u3082\u30b7\u30f3\u30d7\u30eb\u306a\u8272\u6307\u5b9a\u65b9\u6cd5<\/span>\n<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">CSS\u3067\u306f<strong>\u30ab\u30e9\u30fc\u540d\uff08\u8272\u306e\u540d\u524d\uff09<\/strong>\u3092\u305d\u306e\u307e\u307e\u82f1\u8a9e\u3067\u66f8\u304f\u3053\u3068\u3067\u8272\u3092\u6307\u5b9a\u3067\u304d\u307e\u3059\u3002<br>red\uff08\u8d64\uff09\u3001blue\uff08\u9752\uff09\u3001green\uff08\u7dd1\uff09\u3001white\uff08\u767d\uff09\u3001black\uff08\u9ed2\uff09\u2014\u2014\u76f4\u611f\u7684\u3067\u308f\u304b\u308a\u3084\u3059\u3044\u66f8\u304d\u65b9\u3067\u3059\u3002<\/p>\n\n\n\n<div style=\"background:#f8f9fa;border-left:4px solid #6b7280;border-radius:0 8px 8px 0;padding:16px 20px;margin:20px 0;\"><p style=\"margin:0 0 4px;font-size:13px;font-weight:700;color:#6b7280;letter-spacing:1px;\">&#128218; \u7528\u8a9e\u89e3\u8aac<\/p><p style=\"margin:0;font-size:15px;line-height:1.7;\"><strong>CSS\u30ab\u30e9\u30fc\u540d<\/strong>\uff1aW3C\u304c\u5b9a\u7fa9\u3057\u305f\u8272\u306e\u82f1\u8a9e\u540d\u3002\u57fa\u672c\u7684\u306a16\u8272\uff08basic color keywords\uff09\u304b\u3089\u3001CSS3\u3067\u8ffd\u52a0\u3055\u308c\u305f147\u8272\u307e\u3067\u4f7f\u7528\u3067\u304d\u307e\u3059\u3002\u305f\u3060\u3057\u53b3\u5bc6\u306a\u8272\u6307\u5b9a\u306b\u306f\u5411\u304b\u305a\u3001\u672c\u756aWeb\u30b5\u30a4\u30c8\u3067\u306f\u3088\u308a\u7cbe\u5bc6\u306aHEX\u3084RGB\u3092\u4f7f\u3046\u3053\u3068\u304c\u591a\u3044\u3067\u3059\u3002<\/p><\/div>\n\n\n\n<div style=\"background:#1e1e1e;border-radius:8px;padding:20px 24px;margin:20px 0;overflow-x:auto;\"><pre style=\"margin:0;color:#d4d4d4;font-family:'Courier New',Courier,monospace;font-size:14px;line-height:1.7;white-space:pre;\">\/* \u30ab\u30e9\u30fc\u540d\u3067\u306e\u6307\u5b9a\u4f8b *\/\nh1 { color: red; }         \/* \u8d64 *\/\np { color: blue; }         \/* \u9752 *\/\na { color: navy; }         \/* \u30cd\u30a4\u30d3\u30fc *\/\nspan { color: gray; }      \/* \u30b0\u30ec\u30fc *\/\nstrong { color: darkred; } \/* \u30c0\u30fc\u30af\u30ec\u30c3\u30c9 *\/\nem { color: goldenrod; }   \/* \u30b4\u30fc\u30eb\u30c7\u30f3\u30ed\u30c3\u30c9\uff08\u9ec4\u91d1\u8272\uff09 *\/<\/pre><\/div>\n\n\n\n<p class=\"wp-block-paragraph\">\u3088\u304f\u4f7f\u308f\u308c\u308b\u30ab\u30e9\u30fc\u540d\u3092\u307e\u3068\u3081\u307e\u3057\u305f\u3002<\/p>\n\n\n\n<table>\n<thead><tr><th>\u30ab\u30e9\u30fc\u540d<\/th><th>\u65e5\u672c\u8a9e<\/th><th>HEX\u5024<\/th><th>\u4e3b\u306a\u7528\u9014<\/th><\/tr><\/thead>\n<tbody>\n<tr><td>black<\/td><td>\u9ed2<\/td><td>#000000<\/td><td>\u672c\u6587\u30c6\u30ad\u30b9\u30c8<\/td><\/tr>\n<tr><td>white<\/td><td>\u767d<\/td><td>#ffffff<\/td><td>\u660e\u308b\u3044\u80cc\u666f\u4e0a\u306e\u30c6\u30ad\u30b9\u30c8<\/td><\/tr>\n<tr><td>red<\/td><td>\u8d64<\/td><td>#ff0000<\/td><td>\u8b66\u544a\u30fb\u30a8\u30e9\u30fc\u8868\u793a<\/td><\/tr>\n<tr><td>blue<\/td><td>\u9752<\/td><td>#0000ff<\/td><td>\u30ea\u30f3\u30af\uff08\u30c7\u30d5\u30a9\u30eb\u30c8\u8272\uff09<\/td><\/tr>\n<tr><td>green<\/td><td>\u7dd1<\/td><td>#008000<\/td><td>\u6210\u529f\u30fbOK\u72b6\u614b<\/td><\/tr>\n<tr><td>gray \/ grey<\/td><td>\u30b0\u30ec\u30fc<\/td><td>#808080<\/td><td>\u30b5\u30d6\u30c6\u30ad\u30b9\u30c8\u30fb\u88dc\u8db3\u60c5\u5831<\/td><\/tr>\n<tr><td>navy<\/td><td>\u30cd\u30a4\u30d3\u30fc<\/td><td>#000080<\/td><td>\u898b\u51fa\u3057\u30fb\u5f37\u8abf\u30c6\u30ad\u30b9\u30c8<\/td><\/tr>\n<tr><td>orange<\/td><td>\u30aa\u30ec\u30f3\u30b8<\/td><td>#ffa500<\/td><td>CTA\u30fb\u6ce8\u76ee\u30dd\u30a4\u30f3\u30c8<\/td><\/tr>\n<tr><td>transparent<\/td><td>\u900f\u660e<\/td><td>\u2014<\/td><td>\u8272\u3092\u975e\u8868\u793a\u306b\u3059\u308b<\/td><\/tr>\n<\/tbody>\n<\/table>\n\n\n\n<div style=\"background:#fef2f2;border:2px solid #dc2626;border-radius:8px;padding:20px 24px;margin:24px 0;\"><div style=\"display:flex;align-items:center;gap:8px;margin-bottom:12px;\"><span style=\"font-size:20px;\">&#9888;&#65039;<\/span><strong style=\"color:#dc2626;font-size:16px;\">\u30ab\u30e9\u30fc\u540d\u6307\u5b9a\u306e\u6ce8\u610f\u70b9<\/strong><\/div><p style=\"margin:0;font-size:15px;line-height:1.8;color:#333;\">\u30ab\u30e9\u30fc\u540d\u306f\u76f4\u611f\u7684\u3067\u3059\u304c\u3001\u30d6\u30e9\u30a6\u30b6\u306b\u3088\u3063\u3066\u308f\u305a\u304b\u306b\u8868\u793a\u304c\u7570\u306a\u308b\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u3002\u307e\u305f\u300c\u7d3a\u8272\u300d\u300c\u30a8\u30e1\u30e9\u30eb\u30c9\u300d\u306e\u3088\u3046\u306a\u65e5\u672c\u8a9e\u306e\u611f\u899a\u3068\u30ba\u30ec\u304c\u3042\u308b\u540d\u524d\u3082\u3042\u308a\u307e\u3059\u3002\u30c7\u30b6\u30a4\u30f3\u306e\u7cbe\u5ea6\u304c\u6c42\u3081\u3089\u308c\u308b\u5834\u5408\u306fHEX\u3084RGB\u3067\u306e\u6307\u5b9a\u3092\u63a8\u5968\u3057\u307e\u3059\u3002<\/p><\/div>\n\n\n\n<div class=\"balloon-wrap\">\n  <div class=\"balloon-icon\">\n    <img decoding=\"async\" src=\"https:\/\/genai-ai.co.jp\/ai-kanri\/wp-content\/uploads\/2026\/04\/ceo-sugasawa.jpg\" alt=\"\u4ee3\u8868\u83c5\u6fa4\">\n    <span class=\"balloon-name\">\u4ee3\u8868\u83c5\u6fa4<\/span>\n  <\/div>\n  <div class=\"balloon-body\">\u500b\u4eba\u7684\u306b\u306f\u3001\u30d7\u30ed\u30c8\u30bf\u30a4\u30d7\u3084\u7c21\u5358\u306a\u30c6\u30b9\u30c8\u7528\u306b\u30ab\u30e9\u30fc\u540d\u3092\u4f7f\u3044\u3001\u672c\u756a\u30b3\u30fc\u30c9\u3067\u306fHEX\u306b\u5909\u63db\u3059\u308b\u3088\u3046\u306b\u3057\u3066\u3044\u307e\u3059\u3002\u30c1\u30fc\u30e0\u3067\u8272\u3092\u5171\u6709\u3059\u308b\u3068\u304d\u3082HEX\u306e\u307b\u3046\u304c\u4f1d\u308f\u308a\u3084\u3059\u3044\u3067\u3059\u306d\u3002<\/div>\n<\/div>\n\n\n<div style=\"margin:48px 0 8px;display:flex;gap:12px;justify-content:center;flex-wrap:wrap;\"><a href=\"https:\/\/aikanri.genai-ai.co.jp\/seminar2-blog\/?utm_source=blog&#038;utm_medium=h2banner&#038;utm_content=cc-css-color&#038;blog_slug=cc-css-color\" target=\"_blank\" rel=\"noopener\" aria-label=\"Claude Code \u5b8c\u5168\u89e3\u8aac\u30bb\u30df\u30ca\u30fc\uff08\u7121\u6599\u30fb1on1\u30fb60\u5206\uff09\u306e\u4e88\u7d04\u753b\u9762\u3078\" style=\"flex:1 1 280px;max-width:360px;text-decoration:none;\"><img decoding=\"async\" src=\"https:\/\/genai-ai.co.jp\/ai-kanri\/wp-content\/uploads\/2026\/05\/cta_seminar_claude_code_2026.jpg\" alt=\"Claude Code \u5b8c\u5168\u89e3\u8aac\u30bb\u30df\u30ca\u30fc\uff5c\u7d4c\u55b6\u8005\u30fb\u4f1a\u793e\u5f79\u54e1\u5c02\u7528 1on1 60\u5206 \u7121\u6599\" style=\"width:100%;height:auto;border-radius:8px;display:block;\"><\/a><a href=\"https:\/\/aikanri.genai-ai.co.jp\/?utm_source=blog&#038;utm_medium=h2banner&#038;utm_campaign=cc-css-color&#038;utm_content=h2-banner-kanri\" target=\"_blank\" rel=\"noopener\" aria-label=\"AI\u9b3c\u7ba1\u7406 \u516c\u5f0f\u30b5\u30a4\u30c8\u3078\" style=\"flex:1 1 280px;max-width:360px;text-decoration:none;\"><img decoding=\"async\" src=\"https:\/\/genai-ai.co.jp\/ai-kanri\/wp-content\/uploads\/2026\/05\/cta_blog_1to1.jpg\" alt=\"Claude Code\u3092\u7d4c\u55b6\u306b\u6d3b\u304b\u3057\u305f\u3044\u65b9\u3078 \u2014 AI\u9b3c\u7ba1\u7406\" style=\"width:100%;height:auto;border-radius:8px;display:block;\"><\/a><\/div>\n\n\n<div id=\"sec-03\"><\/div>\n<h2 class=\"section-header-img\" style=\"margin:32px 0 24px;border-radius:8px;overflow:hidden;background:linear-gradient(135deg,#1a1a1a 0%,#2a1015 100%);padding:32px 28px;color:#fff;position:relative;border:none;border-left:none;text-align:left;\">\n  <span class=\"section-number\" style=\"display:block;\">03<\/span>\n  <span class=\"section-label\" style=\"display:block;\">HEX COLOR<\/span>\n  <span class=\"section-title\" style=\"display:block;\">HEX\uff08#ffffff\uff09\u3067\u306e\u6307\u5b9a<\/span>\n  <span class=\"section-desc\">16\u9032\u6570\u3067\u7cbe\u5bc6\u306b\u8272\u3092\u8868\u73fe\u3059\u308b<\/span>\n<\/h2>\n\n\n\n<div style=\"background:#f8f9fa;border-left:4px solid #6b7280;border-radius:0 8px 8px 0;padding:16px 20px;margin:20px 0;\"><p style=\"margin:0 0 4px;font-size:13px;font-weight:700;color:#6b7280;letter-spacing:1px;\">&#128218; \u7528\u8a9e\u89e3\u8aac<\/p><p style=\"margin:0;font-size:15px;line-height:1.7;\"><strong>HEX\u30ab\u30e9\u30fc\u30b3\u30fc\u30c9<\/strong>\uff1a16\u9032\u6570\uff08hexadecimal\uff09\u3092\u4f7f\u3063\u305f\u8272\u6307\u5b9a\u5f62\u5f0f\u3002#\uff08\u30cf\u30c3\u30b7\u30e5\uff09\u306b\u7d9a\u3051\u30666\u6841\uff08\u307e\u305f\u306f3\u6841\uff09\u306e\u82f1\u6570\u5b57\u3067\u8272\u3092\u8868\u73fe\u3057\u307e\u3059\u3002\u6700\u521d\u306e2\u6841\u304c\u8d64\uff08R\uff09\u3001\u6b21\u306e2\u6841\u304c\u7dd1\uff08G\uff09\u3001\u6700\u5f8c\u306e2\u6841\u304c\u9752\uff08B\uff09\u306e\u5f37\u3055\u30920\u301c255\uff0816\u9032\u6570\u3067\u306f00\u301cFF\uff09\u3067\u793a\u3057\u307e\u3059\u3002Web\u30c7\u30b6\u30a4\u30f3\u3067\u6700\u3082\u5e83\u304f\u4f7f\u308f\u308c\u308b\u8272\u6307\u5b9a\u65b9\u5f0f\u3067\u3059\u3002<\/p><\/div>\n\n\n\n<p class=\"wp-block-paragraph\">HEX\u30ab\u30e9\u30fc\u30b3\u30fc\u30c9\u306f<strong>#\u306e\u5f8c\u306b6\u6841\u306e\u82f1\u6570\u5b57<\/strong>\u3092\u66f8\u304f\u5f62\u5f0f\u3067\u3059\u3002<br>\u4f8b\uff1a<code>#ff0000<\/code>\uff08\u8d64\uff09\u3001<code>#00ff00<\/code>\uff08\u7dd1\uff09\u3001<code>#0000ff<\/code>\uff08\u9752\uff09<\/p>\n\n\n\n<div style=\"background:#1e1e1e;border-radius:8px;padding:20px 24px;margin:20px 0;overflow-x:auto;\"><pre style=\"margin:0;color:#d4d4d4;font-family:'Courier New',Courier,monospace;font-size:14px;line-height:1.7;white-space:pre;\">\/* HEX\u30ab\u30e9\u30fc\u30b3\u30fc\u30c9\u306e\u6307\u5b9a\u4f8b *\/\nbody { color: #333333; }      \/* \u307b\u307c\u9ed2\uff08\u672c\u6587\u30c6\u30ad\u30b9\u30c8\u7528\uff09 *\/\nh1 { color: #dc2626; }        \/* \u8d64\u8272\uff08\u5f37\u8abf\u7528\uff09 *\/\n.subtitle { color: #6b7280; } \/* \u30b0\u30ec\u30fc\uff08\u30b5\u30d6\u30c6\u30ad\u30b9\u30c8\u7528\uff09 *\/\na { color: #2563eb; }         \/* \u9752\uff08\u30ea\u30f3\u30af\u8272\uff09 *\/\n.muted { color: #9ca3af; }    \/* \u8584\u3044\u30b0\u30ec\u30fc\uff08\u88dc\u8db3\u60c5\u5831\uff09 *\/<\/pre><\/div>\n\n\n\n<p class=\"wp-block-paragraph\">HEX\u30b3\u30fc\u30c9\u306e\u8aad\u307f\u65b9\u306f\u4ee5\u4e0b\u306e\u901a\u308a\u3067\u3059\u3002<\/p>\n\n\n\n<div class=\"g-flow-row\" style=\"margin:24px 0;\">\n  <div class=\"g-flow-item\">#<br><small>\u8a18\u53f7<\/small><\/div>\n  <div class=\"g-flow-arrow\">&#8594;<\/div>\n  <div class=\"g-flow-item\">RR<br><small>\u8d64(00\u301cFF)<\/small><\/div>\n  <div class=\"g-flow-arrow\">&#8594;<\/div>\n  <div class=\"g-flow-item\">GG<br><small>\u7dd1(00\u301cFF)<\/small><\/div>\n  <div class=\"g-flow-arrow\">&#8594;<\/div>\n  <div class=\"g-flow-item\">BB<br><small>\u9752(00\u301cFF)<\/small><\/div>\n<\/div>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u4f8b\uff1a#dc2626\u306e\u5834\u5408<\/strong><br>dc = \u8d64\u304c220\uff08\u304b\u306a\u308a\u5f37\u3044\uff09<br>26 = \u7dd1\u304c38\uff08\u5f31\u3044\uff09<br>26 = \u9752\u304c38\uff08\u5f31\u3044\uff09<br>\u2192 \u8d64\u304c\u5f37\u304f\u3001\u7dd1\u3068\u9752\u304c\u5f31\u3044 = <strong>\u8d64\u8272<\/strong>\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<div style=\"background:#f0fdf4;border:1px solid #22c55e;border-radius:8px;padding:20px 24px;margin:24px 0;\"><div style=\"display:flex;align-items:center;gap:8px;margin-bottom:12px;\"><span style=\"font-size:18px;\">&#128161;<\/span><strong style=\"color:#16a34a;font-size:15px;\">3\u6841\u306eHEX\u30b3\u30fc\u30c9<\/strong><\/div><p style=\"margin:0;font-size:15px;line-height:1.8;color:#333;\">#fff\uff08#ffffff \u306e\u7701\u7565\u5f62\uff09\u306e\u3088\u3046\u306b\u3001RR\u30fbGG\u30fbBB\u304c\u305d\u308c\u305e\u308c\u540c\u3058\u6570\u5b57\u306e\u7e70\u308a\u8fd4\u3057\u306e\u5834\u5408\u306f3\u6841\u306b\u7701\u7565\u3067\u304d\u307e\u3059\u3002#fff = #ffffff\uff08\u767d\uff09\u3001#000 = #000000\uff08\u9ed2\uff09\u3001#f00 = #ff0000\uff08\u8d64\uff09\u304c\u4ee3\u8868\u4f8b\u3067\u3059\u3002<\/p><\/div>\n\n\n\n<p class=\"wp-block-paragraph\">\u30c7\u30b6\u30a4\u30f3\u30c4\u30fc\u30eb\u3068\u306e\u9023\u643a\u3067HEX\u30b3\u30fc\u30c9\u306f\u975e\u5e38\u306b\u4fbf\u5229\u3067\u3059\u3002<\/p>\n\n\n\n<div style=\"background:#fafafa;border-radius:8px;padding:16px 20px;margin:16px 0;border-left:4px solid #dc2626;\">\n<div style=\"display:flex;align-items:flex-start;gap:8px;padding:6px 0;font-size:15px;line-height:1.6;\"><span style=\"color:#dc2626;font-size:16px;flex-shrink:0;margin-top:2px;\">&#10004;&#65039;<\/span><span>Figma\u3084Adobe XD\u306a\u3069\u306e\u30c7\u30b6\u30a4\u30f3\u30c4\u30fc\u30eb\u306f\u8272\u3092HEX\u5f62\u5f0f\u3067\u51fa\u529b\u3067\u304d\u308b<\/span><\/div>\n<div style=\"display:flex;align-items:flex-start;gap:8px;padding:6px 0;font-size:15px;line-height:1.6;\"><span style=\"color:#dc2626;font-size:16px;flex-shrink:0;margin-top:2px;\">&#10004;&#65039;<\/span><span>\u30ab\u30e9\u30fc\u30d4\u30c3\u30ab\u30fc\u3067\u9078\u3093\u3060\u8272\u3092\u305d\u306e\u307e\u307e\u30b3\u30d4\u30fc&\u30da\u30fc\u30b9\u30c8\u3067\u304d\u308b<\/span><\/div>\n<div style=\"display:flex;align-items:flex-start;gap:8px;padding:6px 0;font-size:15px;line-height:1.6;\"><span style=\"color:#dc2626;font-size:16px;flex-shrink:0;margin-top:2px;\">&#10004;&#65039;<\/span><span>\u30c7\u30b6\u30a4\u30ca\u30fc\u3068\u30a8\u30f3\u30b8\u30cb\u30a2\u3067\u540c\u3058HEX\u30b3\u30fc\u30c9\u3092\u4f7f\u3046\u3053\u3068\u3067\u8272\u30ba\u30ec\u304c\u306a\u304f\u306a\u308b<\/span><\/div>\n<div style=\"display:flex;align-items:flex-start;gap:8px;padding:6px 0;font-size:15px;line-height:1.6;\"><span style=\"color:#dc2626;font-size:16px;flex-shrink:0;margin-top:2px;\">&#10004;&#65039;<\/span><span>\u5927\u6587\u5b57\u30fb\u5c0f\u6587\u5b57\u3069\u3061\u3089\u3067\u3082\u52d5\u4f5c\u3059\u308b\uff08#DC2626 \u3068 #dc2626 \u306f\u540c\u3058\u8272\uff09<\/span><\/div>\n<\/div>\n\n\n\n<div class=\"balloon-wrap is-right\">\n  <div class=\"balloon-icon\">\n    <img decoding=\"async\" src=\"https:\/\/genai-ai.co.jp\/ai-kanri\/wp-content\/uploads\/2026\/04\/yamazaki-avatar.png\" alt=\"AI\u9b3c\u7ba1\u7406\u5c71\u5d0e\">\n    <span class=\"balloon-name\">AI\u9b3c\u7ba1\u7406\u5c71\u5d0e<\/span>\n  <\/div>\n  <div class=\"balloon-body\">HEX\u30b3\u30fc\u30c9\u306fWeb\u30c7\u30b6\u30a4\u30f3\u306e\u696d\u754c\u6a19\u6e96\u3067\u3059\u3002\u30c7\u30b6\u30a4\u30f3\u30c4\u30fc\u30eb\u304b\u3089\u300c\u30b3\u30d4\u30fc\u300d\u3059\u308b\u3060\u3051\u3067\u305d\u306e\u307e\u307eCSS\u306b\u4f7f\u3048\u308b\u306e\u3067\u3001\u4e00\u5ea6\u6163\u308c\u308b\u3068\u4e00\u756a\u4fbf\u5229\u306a\u6307\u5b9a\u65b9\u6cd5\u3067\u3059\u3088\u3002<\/div>\n<\/div>\n\n\n<div style=\"margin:48px 0 8px;display:flex;gap:12px;justify-content:center;flex-wrap:wrap;\"><a href=\"https:\/\/aikanri.genai-ai.co.jp\/seminar2-blog\/?utm_source=blog&#038;utm_medium=h2banner&#038;utm_content=cc-css-color&#038;blog_slug=cc-css-color\" target=\"_blank\" rel=\"noopener\" aria-label=\"Claude Code \u5b8c\u5168\u89e3\u8aac\u30bb\u30df\u30ca\u30fc\uff08\u7121\u6599\u30fb1on1\u30fb60\u5206\uff09\u306e\u4e88\u7d04\u753b\u9762\u3078\" style=\"flex:1 1 280px;max-width:360px;text-decoration:none;\"><img decoding=\"async\" src=\"https:\/\/genai-ai.co.jp\/ai-kanri\/wp-content\/uploads\/2026\/05\/cta_seminar_claude_code_2026.jpg\" alt=\"Claude Code \u5b8c\u5168\u89e3\u8aac\u30bb\u30df\u30ca\u30fc\uff5c\u7d4c\u55b6\u8005\u30fb\u4f1a\u793e\u5f79\u54e1\u5c02\u7528 1on1 60\u5206 \u7121\u6599\" style=\"width:100%;height:auto;border-radius:8px;display:block;\"><\/a><a href=\"https:\/\/aikanri.genai-ai.co.jp\/?utm_source=blog&#038;utm_medium=h2banner&#038;utm_campaign=cc-css-color&#038;utm_content=h2-banner-kanri\" target=\"_blank\" rel=\"noopener\" aria-label=\"AI\u9b3c\u7ba1\u7406 \u516c\u5f0f\u30b5\u30a4\u30c8\u3078\" style=\"flex:1 1 280px;max-width:360px;text-decoration:none;\"><img decoding=\"async\" src=\"https:\/\/genai-ai.co.jp\/ai-kanri\/wp-content\/uploads\/2026\/05\/cta_blog_1to1.jpg\" alt=\"Claude Code\u3092\u7d4c\u55b6\u306b\u6d3b\u304b\u3057\u305f\u3044\u65b9\u3078 \u2014 AI\u9b3c\u7ba1\u7406\" style=\"width:100%;height:auto;border-radius:8px;display:block;\"><\/a><\/div>\n\n\n<div id=\"sec-04\"><\/div>\n<h2 class=\"section-header-img\" style=\"margin:32px 0 24px;border-radius:8px;overflow:hidden;background:linear-gradient(135deg,#1a1a1a 0%,#2a1015 100%);padding:32px 28px;color:#fff;position:relative;border:none;border-left:none;text-align:left;\">\n  <span class=\"section-number\" style=\"display:block;\">04<\/span>\n  <span class=\"section-label\" style=\"display:block;\">RGB COLOR<\/span>\n  <span class=\"section-title\" style=\"display:block;\">RGB\uff08rgb(255,0,0)\uff09\u3067\u306e\u6307\u5b9a<\/span>\n  <span class=\"section-desc\">\u5149\u306e\u4e09\u539f\u8272\u3067\u76f4\u611f\u7684\u306b\u8272\u3092\u6df7\u305c\u308b<\/span>\n<\/h2>\n\n\n\n<div style=\"background:#f8f9fa;border-left:4px solid #6b7280;border-radius:0 8px 8px 0;padding:16px 20px;margin:20px 0;\"><p style=\"margin:0 0 4px;font-size:13px;font-weight:700;color:#6b7280;letter-spacing:1px;\">&#128218; \u7528\u8a9e\u89e3\u8aac<\/p><p style=\"margin:0;font-size:15px;line-height:1.7;\"><strong>RGB\uff08Red Green Blue\uff09<\/strong>\uff1a\u5149\u306e\u4e09\u539f\u8272\uff08\u8d64\u30fb\u7dd1\u30fb\u9752\uff09\u305d\u308c\u305e\u308c\u306e\u5f37\u3055\u30920\u301c255\u306e\u6570\u5024\u3067\u6307\u5b9a\u3059\u308b\u8272\u8868\u73fe\u65b9\u5f0f\u3002rgb(\u8d64, \u7dd1, \u9752)\u306e\u5f62\u5f0f\u3067\u66f8\u304d\u307e\u3059\u3002\u3059\u3079\u30660\u306a\u3089\u9ed2\uff08rgb(0,0,0)\uff09\u3001\u3059\u3079\u3066255\u306a\u3089\u767d\uff08rgb(255,255,255)\uff09\u306b\u306a\u308a\u307e\u3059\u3002HEX\u30b3\u30fc\u30c9\u3068\u5185\u90e8\u7684\u306b\u306f\u540c\u3058\u8272\u3092\u8868\u3057\u3066\u3044\u307e\u3059\u3002<\/p><\/div>\n\n\n\n<p class=\"wp-block-paragraph\">RGB\u306f<strong>\u8d64\uff08Red\uff09\u30fb\u7dd1\uff08Green\uff09\u30fb\u9752\uff08Blue\uff09\u306e\u5149\u306e\u4e09\u539f\u8272<\/strong>\u3092\u6df7\u305c\u3066\u8272\u3092\u4f5c\u308b\u65b9\u5f0f\u3067\u3059\u3002<br>\u305d\u308c\u305e\u308c\u306e\u5f37\u3055\u30920\u301c255\u306e\u6570\u5024\u3067\u6307\u5b9a\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<div style=\"background:#1e1e1e;border-radius:8px;padding:20px 24px;margin:20px 0;overflow-x:auto;\"><pre style=\"margin:0;color:#d4d4d4;font-family:'Courier New',Courier,monospace;font-size:14px;line-height:1.7;white-space:pre;\">\/* RGB\u30ab\u30e9\u30fc\u306e\u6307\u5b9a\u4f8b *\/\np { color: rgb(0, 0, 0); }       \/* \u9ed2\uff08\u5168\u30660\uff09 *\/\nh1 { color: rgb(255, 255, 255); } \/* \u767d\uff08\u5168\u3066255\uff09 *\/\na { color: rgb(0, 102, 204); }    \/* \u9752\uff08\u30a6\u30a7\u30d6\u30ea\u30f3\u30af\u306e\u9752\uff09 *\/\n.error { color: rgb(220, 38, 38); } \/* \u8d64\uff08\u30a8\u30e9\u30fc\u8868\u793a\uff09 *\/\n.success { color: rgb(22, 163, 74); } \/* \u7dd1\uff08\u6210\u529f\u8868\u793a\uff09 *\/\n.muted { color: rgb(107, 114, 128); } \/* \u30b0\u30ec\u30fc\uff08\u88dc\u8db3\u30c6\u30ad\u30b9\u30c8\uff09 *\/<\/pre><\/div>\n\n\n\n<p class=\"wp-block-paragraph\">RGB\u5024\u3068HEX\u30b3\u30fc\u30c9\u306e\u5bfe\u5fdc\u306f\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<table>\n<thead><tr><th>\u8272\u540d<\/th><th>RGB\u8868\u8a18<\/th><th>HEX\u8868\u8a18<\/th><\/tr><\/thead>\n<tbody>\n<tr><td>\u9ed2<\/td><td>rgb(0, 0, 0)<\/td><td>#000000<\/td><\/tr>\n<tr><td>\u767d<\/td><td>rgb(255, 255, 255)<\/td><td>#ffffff<\/td><\/tr>\n<tr><td>\u8d64<\/td><td>rgb(255, 0, 0)<\/td><td>#ff0000<\/td><\/tr>\n<tr><td>\u7dd1<\/td><td>rgb(0, 128, 0)<\/td><td>#008000<\/td><\/tr>\n<tr><td>\u9752<\/td><td>rgb(0, 0, 255)<\/td><td>#0000ff<\/td><\/tr>\n<tr><td>\u30a6\u30a7\u30d6\u30ea\u30f3\u30af\u306e\u9752<\/td><td>rgb(0, 102, 204)<\/td><td>#0066cc<\/td><\/tr>\n<\/tbody>\n<\/table>\n\n\n\n<div style=\"background:#f0fdf4;border:1px solid #22c55e;border-radius:8px;padding:20px 24px;margin:24px 0;\"><div style=\"display:flex;align-items:center;gap:8px;margin-bottom:12px;\"><span style=\"font-size:18px;\">&#128161;<\/span><strong style=\"color:#16a34a;font-size:15px;\">HEX\u3068RGB\u306e\u5909\u63db<\/strong><\/div><p style=\"margin:0;font-size:15px;line-height:1.8;color:#333;\">HEX\u5024\u306fRGB\u306b\u7c21\u5358\u306b\u5909\u63db\u3067\u304d\u307e\u3059\u3002#ff0000 \u306f ff=255(\u8d64), 00=0(\u7dd1), 00=0(\u9752) \u306a\u306e\u3067 rgb(255, 0, 0) \u3068\u540c\u3058\u3067\u3059\u3002\u30d6\u30e9\u30a6\u30b6\u306e\u958b\u767a\u8005\u30c4\u30fc\u30eb\u3092\u958b\u304f\u3068\u3001HEX\u3068RGB\u3092\u76f8\u4e92\u306b\u8868\u793a\u3057\u3066\u304f\u308c\u308b\u306e\u3067\u6d3b\u7528\u3057\u307e\u3057\u3087\u3046\u3002<\/p><\/div>\n\n\n\n<div class=\"balloon-wrap\">\n  <div class=\"balloon-icon\">\n    <img decoding=\"async\" src=\"https:\/\/genai-ai.co.jp\/ai-kanri\/wp-content\/uploads\/2026\/04\/ceo-sugasawa.jpg\" alt=\"\u4ee3\u8868\u83c5\u6fa4\">\n    <span class=\"balloon-name\">\u4ee3\u8868\u83c5\u6fa4<\/span>\n  <\/div>\n  <div class=\"balloon-body\">RGB\u306f\u300c\u6570\u5024\u3092\u8db3\u3057\u305f\u308a\u5f15\u3044\u305f\u308a\u3057\u3066\u8272\u3092\u8abf\u6574\u3059\u308b\u300d\u3068\u3044\u3046\u611f\u899a\u304c\u3064\u304b\u307f\u3084\u3059\u3044\u306e\u3067\u3001\u521d\u5fc3\u8005\u306e\u65b9\u306f\u307e\u305aRGB\u3067\u899a\u3048\u3066\u304b\u3089HEX\u306b\u79fb\u884c\u3059\u308b\u306e\u3082\u3044\u3044\u65b9\u6cd5\u3067\u3059\u3088\u3002<\/div>\n<\/div>\n\n\n<div style=\"margin:48px 0 8px;display:flex;gap:12px;justify-content:center;flex-wrap:wrap;\"><a href=\"https:\/\/aikanri.genai-ai.co.jp\/seminar2-blog\/?utm_source=blog&#038;utm_medium=h2banner&#038;utm_content=cc-css-color&#038;blog_slug=cc-css-color\" target=\"_blank\" rel=\"noopener\" aria-label=\"Claude Code \u5b8c\u5168\u89e3\u8aac\u30bb\u30df\u30ca\u30fc\uff08\u7121\u6599\u30fb1on1\u30fb60\u5206\uff09\u306e\u4e88\u7d04\u753b\u9762\u3078\" style=\"flex:1 1 280px;max-width:360px;text-decoration:none;\"><img decoding=\"async\" src=\"https:\/\/genai-ai.co.jp\/ai-kanri\/wp-content\/uploads\/2026\/05\/cta_seminar_claude_code_2026.jpg\" alt=\"Claude Code \u5b8c\u5168\u89e3\u8aac\u30bb\u30df\u30ca\u30fc\uff5c\u7d4c\u55b6\u8005\u30fb\u4f1a\u793e\u5f79\u54e1\u5c02\u7528 1on1 60\u5206 \u7121\u6599\" style=\"width:100%;height:auto;border-radius:8px;display:block;\"><\/a><a href=\"https:\/\/aikanri.genai-ai.co.jp\/?utm_source=blog&#038;utm_medium=h2banner&#038;utm_campaign=cc-css-color&#038;utm_content=h2-banner-kanri\" target=\"_blank\" rel=\"noopener\" aria-label=\"AI\u9b3c\u7ba1\u7406 \u516c\u5f0f\u30b5\u30a4\u30c8\u3078\" style=\"flex:1 1 280px;max-width:360px;text-decoration:none;\"><img decoding=\"async\" src=\"https:\/\/genai-ai.co.jp\/ai-kanri\/wp-content\/uploads\/2026\/05\/cta_blog_1to1.jpg\" alt=\"Claude Code\u3092\u7d4c\u55b6\u306b\u6d3b\u304b\u3057\u305f\u3044\u65b9\u3078 \u2014 AI\u9b3c\u7ba1\u7406\" style=\"width:100%;height:auto;border-radius:8px;display:block;\"><\/a><\/div>\n\n\n<div id=\"sec-05\"><\/div>\n<h2 class=\"section-header-img\" style=\"margin:32px 0 24px;border-radius:8px;overflow:hidden;background:linear-gradient(135deg,#1a1a1a 0%,#2a1015 100%);padding:32px 28px;color:#fff;position:relative;border:none;border-left:none;text-align:left;\">\n  <span class=\"section-number\" style=\"display:block;\">05<\/span>\n  <span class=\"section-label\" style=\"display:block;\">RGBA COLOR<\/span>\n  <span class=\"section-title\" style=\"display:block;\">RGBA\uff08rgba()\uff09\u3067\u900f\u660e\u5ea6\u3092\u8a2d\u5b9a<\/span>\n  <span class=\"section-desc\">\u30a2\u30eb\u30d5\u30a1\u5024\u3067\u6587\u5b57\u306e\u900f\u660e\u5ea6\u3092\u81ea\u5728\u306b<\/span>\n<\/h2>\n\n\n\n<div style=\"background:#f8f9fa;border-left:4px solid #6b7280;border-radius:0 8px 8px 0;padding:16px 20px;margin:20px 0;\"><p style=\"margin:0 0 4px;font-size:13px;font-weight:700;color:#6b7280;letter-spacing:1px;\">&#128218; \u7528\u8a9e\u89e3\u8aac<\/p><p style=\"margin:0;font-size:15px;line-height:1.7;\"><strong>RGBA\uff08Red Green Blue Alpha\uff09<\/strong>\uff1aRGB\u306b\u900f\u660e\u5ea6\uff08Alpha\uff09\u3092\u8ffd\u52a0\u3057\u305f\u8272\u6307\u5b9a\u65b9\u5f0f\u3002rgba(\u8d64, \u7dd1, \u9752, \u900f\u660e\u5ea6)\u306e\u5f62\u5f0f\u3067\u66f8\u304d\u3001\u900f\u660e\u5ea6\u306f0\uff08\u5b8c\u5168\u900f\u660e\uff09\u301c1\uff08\u5b8c\u5168\u4e0d\u900f\u660e\uff09\u306e\u5c0f\u6570\u3067\u6307\u5b9a\u3057\u307e\u3059\u3002\u300crgba(220, 38, 38, 0.5)\u300d\u306a\u308950%\u306e\u900f\u660e\u5ea6\u3067\u8d64\u8272\u306b\u306a\u308a\u307e\u3059\u3002<\/p><\/div>\n\n\n\n<p class=\"wp-block-paragraph\">RGBA\u306fRGB\u306b<strong>\u30a2\u30eb\u30d5\u30a1\uff08Alpha\uff09\u30c1\u30e3\u30f3\u30cd\u30eb<\/strong>\u3092\u8ffd\u52a0\u3057\u305f\u3082\u306e\u3067\u3059\u3002<br>\u900f\u660e\u5ea6\u30920\u301c1\u306e\u6570\u5024\u3067\u6307\u5b9a\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<div style=\"background:#1e1e1e;border-radius:8px;padding:20px 24px;margin:20px 0;overflow-x:auto;\"><pre style=\"margin:0;color:#d4d4d4;font-family:'Courier New',Courier,monospace;font-size:14px;line-height:1.7;white-space:pre;\">\/* RGBA\u3067\u900f\u660e\u5ea6\u3092\u6307\u5b9a *\/\n.highlight { color: rgba(220, 38, 38, 0.9); }  \/* \u8d6490%\u4e0d\u900f\u660e *\/\n.overlay { color: rgba(0, 0, 0, 0.7); }         \/* \u9ed270%\u4e0d\u900f\u660e\uff08\u8584\u6697\u3044\u6587\u5b57\uff09 *\/\n.ghost { color: rgba(100, 100, 100, 0.4); }     \/* \u30b0\u30ec\u30fc40%\u4e0d\u900f\u660e\uff08\u8584\u3044\u30c6\u30ad\u30b9\u30c8\uff09 *\/\n.watermark { color: rgba(0, 0, 0, 0.2); }       \/* \u9ed220%\u4e0d\u900f\u660e\uff08\u900f\u304b\u3057\u6587\u5b57\uff09 *\/<\/pre><\/div>\n\n\n\n<p class=\"wp-block-paragraph\">\u30a2\u30eb\u30d5\u30a1\u5024\uff08\u900f\u660e\u5ea6\uff09\u306e\u76ee\u5b89\u306f\u4ee5\u4e0b\u306e\u901a\u308a\u3067\u3059\u3002<\/p>\n\n\n\n<table>\n<thead><tr><th>\u30a2\u30eb\u30d5\u30a1\u5024<\/th><th>\u898b\u3048\u65b9<\/th><th>\u7528\u9014\u4f8b<\/th><\/tr><\/thead>\n<tbody>\n<tr><td>0<\/td><td>\u5b8c\u5168\u306b\u900f\u660e\uff08\u898b\u3048\u306a\u3044\uff09<\/td><td>\u975e\u8868\u793a\u306b\u3057\u305f\u3044\u6642<\/td><\/tr>\n<tr><td>0.2\u301c0.3<\/td><td>\u3046\u3063\u3059\u3089\u898b\u3048\u308b<\/td><td>\u30a6\u30a9\u30fc\u30bf\u30fc\u30de\u30fc\u30af\u30fb\u900f\u304b\u3057<\/td><\/tr>\n<tr><td>0.5<\/td><td>\u534a\u900f\u660e<\/td><td>\u30aa\u30fc\u30d0\u30fc\u30ec\u30a4\u8868\u793a<\/td><\/tr>\n<tr><td>0.7\u301c0.8<\/td><td>\u3084\u3084\u900f\u660e<\/td><td>\u88dc\u8db3\u30c6\u30ad\u30b9\u30c8\u30fb\u7121\u52b9\u72b6\u614b<\/td><\/tr>\n<tr><td>0.9<\/td><td>\u307b\u307c\u4e0d\u900f\u660e<\/td><td>\u30e1\u30a4\u30f3\u30c6\u30ad\u30b9\u30c8\u306e\u5fae\u5999\u306a\u8abf\u6574<\/td><\/tr>\n<tr><td>1<\/td><td>\u5b8c\u5168\u306b\u4e0d\u900f\u660e<\/td><td>\u901a\u5e38\u306e\u30c6\u30ad\u30b9\u30c8\u8868\u793a<\/td><\/tr>\n<\/tbody>\n<\/table>\n\n\n\n<div style=\"background:#f0fdf4;border:1px solid #22c55e;border-radius:8px;padding:20px 24px;margin:24px 0;\"><div style=\"display:flex;align-items:center;gap:8px;margin-bottom:12px;\"><span style=\"font-size:18px;\">&#128161;<\/span><strong style=\"color:#16a34a;font-size:15px;\">opacity\u30d7\u30ed\u30d1\u30c6\u30a3\u3068\u306e\u9055\u3044<\/strong><\/div><p style=\"margin:0;font-size:15px;line-height:1.8;color:#333;\">opacity\u30d7\u30ed\u30d1\u30c6\u30a3\u306fHTML\u8981\u7d20\u5168\u4f53\uff08\u30c6\u30ad\u30b9\u30c8\u30fb\u80cc\u666f\u30fb\u5b50\u8981\u7d20\u5168\u90e8\uff09\u306e\u900f\u660e\u5ea6\u3092\u5909\u3048\u307e\u3059\u3002rgba\u306f\u8272\u306e\u900f\u660e\u5ea6\u3060\u3051\u3092\u5909\u3048\u308b\u306e\u3067\u3001\u80cc\u666f\u306f\u5f71\u97ff\u3057\u307e\u305b\u3093\u3002\u30c6\u30ad\u30b9\u30c8\u8272\u3060\u3051\u3092\u534a\u900f\u660e\u306b\u3057\u305f\u3044\u5834\u5408\u306frgba\u3092\u4f7f\u3044\u307e\u3057\u3087\u3046\u3002<\/p><\/div>\n\n\n\n<div class=\"balloon-wrap is-right\">\n  <div class=\"balloon-icon\">\n    <img decoding=\"async\" src=\"https:\/\/genai-ai.co.jp\/ai-kanri\/wp-content\/uploads\/2026\/04\/yamazaki-avatar.png\" alt=\"AI\u9b3c\u7ba1\u7406\u5c71\u5d0e\">\n    <span class=\"balloon-name\">AI\u9b3c\u7ba1\u7406\u5c71\u5d0e<\/span>\n  <\/div>\n  <div class=\"balloon-body\">rgba(0, 0, 0, 0.6)\u306e\u3088\u3046\u306a\u534a\u900f\u660e\u306e\u9ed2\u30c6\u30ad\u30b9\u30c8\u306f\u3001\u30b0\u30e9\u30c7\u30fc\u30b7\u30e7\u30f3\u80cc\u666f\u306e\u4e0a\u3067\u3082\u304d\u308c\u3044\u306b\u8aad\u3081\u308b\u30c6\u30af\u30cb\u30c3\u30af\u3067\u3059\u3002\u30d2\u30fc\u30ed\u30fc\u30bb\u30af\u30b7\u30e7\u30f3\u306e\u30c6\u30ad\u30b9\u30c8\u8868\u793a\u3067\u3088\u304f\u4f7f\u308f\u308c\u307e\u3059\u3088\u3002<\/div>\n<\/div>\n\n\n<div style=\"margin:48px 0 8px;display:flex;gap:12px;justify-content:center;flex-wrap:wrap;\"><a href=\"https:\/\/aikanri.genai-ai.co.jp\/seminar2-blog\/?utm_source=blog&#038;utm_medium=h2banner&#038;utm_content=cc-css-color&#038;blog_slug=cc-css-color\" target=\"_blank\" rel=\"noopener\" aria-label=\"Claude Code \u5b8c\u5168\u89e3\u8aac\u30bb\u30df\u30ca\u30fc\uff08\u7121\u6599\u30fb1on1\u30fb60\u5206\uff09\u306e\u4e88\u7d04\u753b\u9762\u3078\" style=\"flex:1 1 280px;max-width:360px;text-decoration:none;\"><img decoding=\"async\" src=\"https:\/\/genai-ai.co.jp\/ai-kanri\/wp-content\/uploads\/2026\/05\/cta_seminar_claude_code_2026.jpg\" alt=\"Claude Code \u5b8c\u5168\u89e3\u8aac\u30bb\u30df\u30ca\u30fc\uff5c\u7d4c\u55b6\u8005\u30fb\u4f1a\u793e\u5f79\u54e1\u5c02\u7528 1on1 60\u5206 \u7121\u6599\" style=\"width:100%;height:auto;border-radius:8px;display:block;\"><\/a><a href=\"https:\/\/aikanri.genai-ai.co.jp\/?utm_source=blog&#038;utm_medium=h2banner&#038;utm_campaign=cc-css-color&#038;utm_content=h2-banner-kanri\" target=\"_blank\" rel=\"noopener\" aria-label=\"AI\u9b3c\u7ba1\u7406 \u516c\u5f0f\u30b5\u30a4\u30c8\u3078\" style=\"flex:1 1 280px;max-width:360px;text-decoration:none;\"><img decoding=\"async\" src=\"https:\/\/genai-ai.co.jp\/ai-kanri\/wp-content\/uploads\/2026\/05\/cta_blog_1to1.jpg\" alt=\"Claude Code\u3092\u7d4c\u55b6\u306b\u6d3b\u304b\u3057\u305f\u3044\u65b9\u3078 \u2014 AI\u9b3c\u7ba1\u7406\" style=\"width:100%;height:auto;border-radius:8px;display:block;\"><\/a><\/div>\n\n\n<div id=\"sec-06\"><\/div>\n<h2 class=\"section-header-img\" style=\"margin:32px 0 24px;border-radius:8px;overflow:hidden;background:linear-gradient(135deg,#1a1a1a 0%,#2a1015 100%);padding:32px 28px;color:#fff;position:relative;border:none;border-left:none;text-align:left;\">\n  <span class=\"section-number\" style=\"display:block;\">06<\/span>\n  <span class=\"section-label\" style=\"display:block;\">HSL COLOR<\/span>\n  <span class=\"section-title\" style=\"display:block;\">HSL\uff08hsl()\uff09\u3067\u306e\u6307\u5b9a<\/span>\n  <span class=\"section-desc\">\u8272\u76f8\u30fb\u5f69\u5ea6\u30fb\u660e\u5ea6\u3067\u76f4\u611f\u7684\u306b\u8272\u3092\u4f5c\u308b<\/span>\n<\/h2>\n\n\n\n<div style=\"background:#f8f9fa;border-left:4px solid #6b7280;border-radius:0 8px 8px 0;padding:16px 20px;margin:20px 0;\"><p style=\"margin:0 0 4px;font-size:13px;font-weight:700;color:#6b7280;letter-spacing:1px;\">&#128218; \u7528\u8a9e\u89e3\u8aac<\/p><p style=\"margin:0;font-size:15px;line-height:1.7;\"><strong>HSL\uff08Hue Saturation Lightness\uff09<\/strong>\uff1a\u8272\u76f8\uff08H: 0\u301c360\u5ea6\uff09\u30fb\u5f69\u5ea6\uff08S: 0\u301c100%\uff09\u30fb\u660e\u5ea6\uff08L: 0\u301c100%\uff09\u3067\u8272\u3092\u6307\u5b9a\u3059\u308b\u65b9\u5f0f\u3002\u8272\u76f80\u5ea6\u306f\u8d64\u3001120\u5ea6\u306f\u7dd1\u3001240\u5ea6\u306f\u9752\u3002\u5f69\u5ea60%\u306f\u7121\u5f69\u8272\uff08\u30b0\u30ec\u30fc\uff09\u3001100%\u306f\u6700\u3082\u9bae\u3084\u304b\u3002\u660e\u5ea60%\u306f\u9ed2\u3001100%\u306f\u767d\u3002\u540c\u3058\u8272\u76f8\u3067\u660e\u5ea6\u3092\u5909\u3048\u308b\u3060\u3051\u3067\u914d\u8272\u30d0\u30ea\u30a8\u30fc\u30b7\u30e7\u30f3\u304c\u4f5c\u308a\u3084\u3059\u3044\u306e\u304c\u7279\u5fb4\u3002<\/p><\/div>\n\n\n\n<p class=\"wp-block-paragraph\">HSL\u306f<strong>\u8272\u76f8\uff08H\uff09\u30fb\u5f69\u5ea6\uff08S\uff09\u30fb\u660e\u5ea6\uff08L\uff09<\/strong>\u306e3\u8981\u7d20\u3067\u8272\u3092\u6307\u5b9a\u3059\u308b\u65b9\u5f0f\u3067\u3059\u3002<br>\u30c7\u30b6\u30a4\u30f3\u7684\u306a\u76f4\u611f\u3068\u5bfe\u5fdc\u3057\u3066\u3044\u308b\u305f\u3081\u3001\u914d\u8272\u3092\u8003\u3048\u308b\u3068\u304d\u306b\u975e\u5e38\u306b\u4fbf\u5229\u3067\u3059\u3002<\/p>\n\n\n\n<div style=\"background:#1e1e1e;border-radius:8px;padding:20px 24px;margin:20px 0;overflow-x:auto;\"><pre style=\"margin:0;color:#d4d4d4;font-family:'Courier New',Courier,monospace;font-size:14px;line-height:1.7;white-space:pre;\">\/* HSL\u30ab\u30e9\u30fc\u306e\u6307\u5b9a\u4f8b *\/\nh1 { color: hsl(0, 100%, 50%); }    \/* \u8d64\uff08\u8272\u76f80\u5ea6\u3001\u5f69\u5ea6100%\u3001\u660e\u5ea650%\uff09 *\/\n.blue { color: hsl(217, 91%, 60%); } \/* \u9752 *\/\n.green { color: hsl(142, 71%, 45%); } \/* \u7dd1 *\/\n.gray { color: hsl(220, 9%, 46%); }  \/* \u30b0\u30ec\u30fc *\/\n\n\/* \u540c\u3058\u8272\u76f8\u3067\u660e\u5ea6\u3092\u5909\u3048\u3066\u914d\u8272\u30d0\u30ea\u30a8\u30fc\u30b7\u30e7\u30f3\u3092\u4f5c\u308b *\/\n.red-light { color: hsl(0, 100%, 80%); }  \/* \u8584\u3044\u8d64 *\/\n.red-mid { color: hsl(0, 100%, 50%); }    \/* \u666e\u901a\u306e\u8d64 *\/\n.red-dark { color: hsl(0, 100%, 30%); }   \/* \u6fc3\u3044\u8d64 *\/<\/pre><\/div>\n\n\n\n<div class=\"g-flow-row\" style=\"margin:24px 0;\">\n  <div class=\"g-flow-item\">\u8272\u76f8(H)<br><small>0\u301c360\u5ea6<\/small><\/div>\n  <div class=\"g-flow-arrow\">&#8594;<\/div>\n  <div class=\"g-flow-item\">\u5f69\u5ea6(S)<br><small>0\u301c100%<\/small><\/div>\n  <div class=\"g-flow-arrow\">&#8594;<\/div>\n  <div class=\"g-flow-item\">\u660e\u5ea6(L)<br><small>0\u301c100%<\/small><\/div>\n  <div class=\"g-flow-arrow\">&#8594;<\/div>\n  <div class=\"g-flow-item\">\u8272\u304c\u6c7a\u307e\u308b<\/div>\n<\/div>\n\n\n\n<p class=\"wp-block-paragraph\">HSL\u306e\u30e1\u30ea\u30c3\u30c8\u306f<strong>\u30d0\u30ea\u30a8\u30fc\u30b7\u30e7\u30f3\u5c55\u958b\u306e\u3057\u3084\u3059\u3055<\/strong>\u3067\u3059\u3002<br>\u4f8b\u3048\u3070\u30d6\u30e9\u30f3\u30c9\u30ab\u30e9\u30fc\u3092 hsl(354, 70%, 54%) \u3068\u6c7a\u3081\u305f\u3089\u3001<br>\u660e\u5ea6\u3060\u3051\u3092\u5909\u3048\u308b\u3053\u3068\u3067\u7c21\u5358\u306b\u8584\u3044\u7248\u30fb\u6fc3\u3044\u7248\u304c\u4f5c\u308c\u307e\u3059\u3002<\/p>\n\n\n\n<div style=\"background:#f0fdf4;border:1px solid #22c55e;border-radius:8px;padding:20px 24px;margin:24px 0;\"><div style=\"display:flex;align-items:center;gap:8px;margin-bottom:12px;\"><span style=\"font-size:18px;\">&#128161;<\/span><strong style=\"color:#16a34a;font-size:15px;\">hsla() \u3067\u900f\u660e\u5ea6\u3082\u6307\u5b9a\u3067\u304d\u308b<\/strong><\/div><p style=\"margin:0;font-size:15px;line-height:1.8;color:#333;\">rgba\u3068\u540c\u69d8\u306b hsla() \u3067\u900f\u660e\u5ea6\u3082\u6307\u5b9a\u3067\u304d\u307e\u3059\u3002hsla(0, 100%, 50%, 0.5) \u306750%\u900f\u660e\u306e\u8d64\u8272\u306b\u306a\u308a\u307e\u3059\u3002\u30c6\u30fc\u30de\u30ab\u30e9\u30fc\u306e\u30a2\u30eb\u30d5\u30a1\u30d0\u30ea\u30a8\u30fc\u30b7\u30e7\u30f3\u3092\u4f5c\u308b\u3068\u304d\u306b\u4fbf\u5229\u3067\u3059\u3002<\/p><\/div>\n\n\n\n<div class=\"balloon-wrap\">\n  <div class=\"balloon-icon\">\n    <img decoding=\"async\" src=\"https:\/\/genai-ai.co.jp\/ai-kanri\/wp-content\/uploads\/2026\/04\/ceo-sugasawa.jpg\" alt=\"\u4ee3\u8868\u83c5\u6fa4\">\n    <span class=\"balloon-name\">\u4ee3\u8868\u83c5\u6fa4<\/span>\n  <\/div>\n  <div class=\"balloon-body\">HSL\u306fFigma\u306a\u3069\u306e\u30c7\u30b6\u30a4\u30f3\u30c4\u30fc\u30eb\u3067\u3082\u4f7f\u308f\u308c\u3066\u3044\u308b\u8003\u3048\u65b9\u3067\u3059\u3002\u30a8\u30f3\u30b8\u30cb\u30a2\u3068\u30c7\u30b6\u30a4\u30ca\u30fc\u304c\u540c\u3058\u8a00\u8a9e\u3067\u8272\u3092\u8a71\u305b\u308b\u3088\u3046\u306b\u306a\u308b\u3001\u3068\u3044\u3046\u610f\u5473\u3067\u3082HSL\u3092\u899a\u3048\u308b\u4fa1\u5024\u306f\u9ad8\u3044\u3067\u3059\u306d\u3002<\/div>\n<\/div>\n\n\n<div style=\"margin:48px 0 8px;display:flex;gap:12px;justify-content:center;flex-wrap:wrap;\"><a href=\"https:\/\/aikanri.genai-ai.co.jp\/seminar2-blog\/?utm_source=blog&#038;utm_medium=h2banner&#038;utm_content=cc-css-color&#038;blog_slug=cc-css-color\" target=\"_blank\" rel=\"noopener\" aria-label=\"Claude Code \u5b8c\u5168\u89e3\u8aac\u30bb\u30df\u30ca\u30fc\uff08\u7121\u6599\u30fb1on1\u30fb60\u5206\uff09\u306e\u4e88\u7d04\u753b\u9762\u3078\" style=\"flex:1 1 280px;max-width:360px;text-decoration:none;\"><img decoding=\"async\" src=\"https:\/\/genai-ai.co.jp\/ai-kanri\/wp-content\/uploads\/2026\/05\/cta_seminar_claude_code_2026.jpg\" alt=\"Claude Code \u5b8c\u5168\u89e3\u8aac\u30bb\u30df\u30ca\u30fc\uff5c\u7d4c\u55b6\u8005\u30fb\u4f1a\u793e\u5f79\u54e1\u5c02\u7528 1on1 60\u5206 \u7121\u6599\" style=\"width:100%;height:auto;border-radius:8px;display:block;\"><\/a><a href=\"https:\/\/aikanri.genai-ai.co.jp\/?utm_source=blog&#038;utm_medium=h2banner&#038;utm_campaign=cc-css-color&#038;utm_content=h2-banner-kanri\" target=\"_blank\" rel=\"noopener\" aria-label=\"AI\u9b3c\u7ba1\u7406 \u516c\u5f0f\u30b5\u30a4\u30c8\u3078\" style=\"flex:1 1 280px;max-width:360px;text-decoration:none;\"><img decoding=\"async\" src=\"https:\/\/genai-ai.co.jp\/ai-kanri\/wp-content\/uploads\/2026\/05\/cta_blog_1to1.jpg\" alt=\"Claude Code\u3092\u7d4c\u55b6\u306b\u6d3b\u304b\u3057\u305f\u3044\u65b9\u3078 \u2014 AI\u9b3c\u7ba1\u7406\" style=\"width:100%;height:auto;border-radius:8px;display:block;\"><\/a><\/div>\n\n\n<div id=\"sec-07\"><\/div>\n<h2 class=\"section-header-img\" style=\"margin:32px 0 24px;border-radius:8px;overflow:hidden;background:linear-gradient(135deg,#1a1a1a 0%,#2a1015 100%);padding:32px 28px;color:#fff;position:relative;border:none;border-left:none;text-align:left;\">\n  <span class=\"section-number\" style=\"display:block;\">07<\/span>\n  <span class=\"section-label\" style=\"display:block;\">COLOR TABLE<\/span>\n  <span class=\"section-title\" style=\"display:block;\">\u4e3b\u8981\u30ab\u30e9\u30fc\u30b3\u30fc\u30c9\u4e00\u89a7\u8868<\/span>\n  <span class=\"section-desc\">\u3059\u3050\u306b\u4f7f\u3048\u308b\u30ea\u30d5\u30a1\u30ec\u30f3\u30b9<\/span>\n<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Web\u30c7\u30b6\u30a4\u30f3\u3067\u3088\u304f\u4f7f\u3046\u4e3b\u8981\u306a\u30ab\u30e9\u30fc\u30b3\u30fc\u30c9\u3092\u4e00\u89a7\u306b\u307e\u3068\u3081\u307e\u3057\u305f\u3002<br>\u30ab\u30e9\u30fc\u540d\u30fbHEX\u30fbRGB\u30fbHSL\u3092\u3059\u3079\u3066\u8f09\u305b\u3066\u3044\u308b\u306e\u3067\u3001\u30b3\u30d4\u30fc&\u30da\u30fc\u30b9\u30c8\u3067\u305d\u306e\u307e\u307e\u4f7f\u3048\u307e\u3059\u3002<\/p>\n\n\n\n<table>\n<thead><tr><th>\u30ab\u30e9\u30fc\u540d<\/th><th>HEX<\/th><th>RGB<\/th><th>HSL<\/th><th>\u4e3b\u306a\u7528\u9014<\/th><\/tr><\/thead>\n<tbody>\n<tr><td>\u7d14\u9ed2<\/td><td>#000000<\/td><td>rgb(0,0,0)<\/td><td>hsl(0,0%,0%)<\/td><td>\u30a2\u30a4\u30b3\u30f3\u30fb\u5883\u754c\u7dda<\/td><\/tr>\n<tr><td>\u307b\u307c\u9ed2<\/td><td>#1a1a1a<\/td><td>rgb(26,26,26)<\/td><td>hsl(0,0%,10%)<\/td><td>\u30c0\u30fc\u30af\u30e2\u30fc\u30c9\u80cc\u666f<\/td><\/tr>\n<tr><td>\u30c1\u30e3\u30b3\u30fc\u30eb<\/td><td>#333333<\/td><td>rgb(51,51,51)<\/td><td>hsl(0,0%,20%)<\/td><td>\u672c\u6587\u30c6\u30ad\u30b9\u30c8\u5b9a\u756a<\/td><\/tr>\n<tr><td>\u30c0\u30fc\u30af\u30b0\u30ec\u30fc<\/td><td>#555555<\/td><td>rgb(85,85,85)<\/td><td>hsl(0,0%,33%)<\/td><td>\u898b\u51fa\u3057\u30fb\u5f37\u8abf<\/td><\/tr>\n<tr><td>\u30df\u30c7\u30a3\u30a2\u30e0\u30b0\u30ec\u30fc<\/td><td>#808080<\/td><td>rgb(128,128,128)<\/td><td>hsl(0,0%,50%)<\/td><td>\u30b5\u30d6\u30c6\u30ad\u30b9\u30c8<\/td><\/tr>\n<tr><td>\u30e9\u30a4\u30c8\u30b0\u30ec\u30fc<\/td><td>#cccccc<\/td><td>rgb(204,204,204)<\/td><td>hsl(0,0%,80%)<\/td><td>\u30dc\u30fc\u30c0\u30fc\u30fb\u533a\u5207\u308a<\/td><\/tr>\n<tr><td>\u7d14\u767d<\/td><td>#ffffff<\/td><td>rgb(255,255,255)<\/td><td>hsl(0,0%,100%)<\/td><td>\u80cc\u666f\u30fb\u767d\u629c\u304d\u30c6\u30ad\u30b9\u30c8<\/td><\/tr>\n<tr><td>\u30a2\u30af\u30bb\u30f3\u30c8\u30ec\u30c3\u30c9<\/td><td>#dc2626<\/td><td>rgb(220,38,38)<\/td><td>hsl(0,72%,51%)<\/td><td>CTA\u30fb\u30a8\u30e9\u30fc<\/td><\/tr>\n<tr><td>\u30a6\u30a9\u30fc\u30e0\u30aa\u30ec\u30f3\u30b8<\/td><td>#f97316<\/td><td>rgb(249,115,22)<\/td><td>hsl(24,95%,53%)<\/td><td>\u6ce8\u76ee\u30fb\u30bf\u30b0<\/td><\/tr>\n<tr><td>\u30ea\u30f3\u30af\u30d6\u30eb\u30fc<\/td><td>#2563eb<\/td><td>rgb(37,99,235)<\/td><td>hsl(221,83%,53%)<\/td><td>\u30ea\u30f3\u30af\u30fb\u30dc\u30bf\u30f3<\/td><\/tr>\n<tr><td>\u30b5\u30af\u30bb\u30b9\u30b0\u30ea\u30fc\u30f3<\/td><td>#16a34a<\/td><td>rgb(22,163,74)<\/td><td>hsl(142,72%,36%)<\/td><td>\u6210\u529f\u30fb\u5b8c\u4e86<\/td><\/tr>\n<\/tbody>\n<\/table>\n\n\n\n<p class=\"wp-block-paragraph\">\u30ab\u30e9\u30fc\u30d1\u30ec\u30c3\u30c8\u3092\u4f5c\u308b\u969b\u306f\u3001<strong>\u307e\u305a\u4e3b\u8981\u8272\uff08Primary\uff091\u3064\u3001\u526f\u8272\uff08Secondary\uff091\u301c2\u3064\u3001\u30b0\u30ec\u30fc\u30b9\u30b1\u30fc\u30eb\u6570\u7a2e\u985e<\/strong>\u3092\u5b9a\u7fa9\u3059\u308b\u3068\u307e\u3068\u307e\u3063\u305f\u30c7\u30b6\u30a4\u30f3\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<div style=\"background:#fafafa;border-radius:8px;padding:16px 20px;margin:16px 0;border-left:4px solid #dc2626;\">\n<div style=\"display:flex;align-items:flex-start;gap:8px;padding:6px 0;font-size:15px;line-height:1.6;\"><span style=\"color:#dc2626;font-size:16px;flex-shrink:0;margin-top:2px;\">&#10004;&#65039;<\/span><span>Primary: \u30d6\u30e9\u30f3\u30c9\u306e\u30e1\u30a4\u30f3\u30ab\u30e9\u30fc\uff08\u4f8b\uff1a#dc2626 \u8d64\uff09<\/span><\/div>\n<div style=\"display:flex;align-items:flex-start;gap:8px;padding:6px 0;font-size:15px;line-height:1.6;\"><span style=\"color:#dc2626;font-size:16px;flex-shrink:0;margin-top:2px;\">&#10004;&#65039;<\/span><span>Secondary: \u30a2\u30af\u30bb\u30f3\u30c8\u3084\u88dc\u5b8c\u8272\uff08\u4f8b\uff1a#2563eb \u9752\uff09<\/span><\/div>\n<div style=\"display:flex;align-items:flex-start;gap:8px;padding:6px 0;font-size:15px;line-height:1.6;\"><span style=\"color:#dc2626;font-size:16px;flex-shrink:0;margin-top:2px;\">&#10004;&#65039;<\/span><span>Neutral: \u30c6\u30ad\u30b9\u30c8\u30fb\u80cc\u666f\u7528\u30b0\u30ec\u30fc\uff08\u4f8b\uff1a#333333\u301c#f9fafb\uff09<\/span><\/div>\n<div style=\"display:flex;align-items:flex-start;gap:8px;padding:6px 0;font-size:15px;line-height:1.6;\"><span style=\"color:#dc2626;font-size:16px;flex-shrink:0;margin-top:2px;\">&#10004;&#65039;<\/span><span>Semantic: \u6210\u529f\u30fb\u8b66\u544a\u30fb\u30a8\u30e9\u30fc\u7528\uff08\u7dd1\u30fb\u9ec4\u30fb\u8d64\uff09<\/span><\/div>\n<\/div>\n\n\n\n<div class=\"balloon-wrap is-right\">\n  <div class=\"balloon-icon\">\n    <img decoding=\"async\" src=\"https:\/\/genai-ai.co.jp\/ai-kanri\/wp-content\/uploads\/2026\/04\/yamazaki-avatar.png\" alt=\"AI\u9b3c\u7ba1\u7406\u5c71\u5d0e\">\n    <span class=\"balloon-name\">AI\u9b3c\u7ba1\u7406\u5c71\u5d0e<\/span>\n  <\/div>\n  <div class=\"balloon-body\">\u30ab\u30e9\u30fc\u30b3\u30fc\u30c9\u4e00\u89a7\u306f\u30d6\u30c3\u30af\u30de\u30fc\u30af\u3057\u3066\u304a\u304f\u3068\u4fbf\u5229\u3067\u3059\u3002\u6bce\u56de\u30bc\u30ed\u304b\u3089\u63a2\u3059\u3088\u308a\u3001\u3053\u306e\u3088\u3046\u306a\u4e00\u89a7\u304b\u3089\u9078\u3093\u3067\u5fae\u8abf\u6574\u3059\u308b\u307b\u3046\u304c\u5727\u5012\u7684\u306b\u901f\u304f\u306a\u308a\u307e\u3059\u3002<\/div>\n<\/div>\n\n\n<div style=\"margin:48px 0 8px;display:flex;gap:12px;justify-content:center;flex-wrap:wrap;\"><a href=\"https:\/\/aikanri.genai-ai.co.jp\/seminar2-blog\/?utm_source=blog&#038;utm_medium=h2banner&#038;utm_content=cc-css-color&#038;blog_slug=cc-css-color\" target=\"_blank\" rel=\"noopener\" aria-label=\"Claude Code \u5b8c\u5168\u89e3\u8aac\u30bb\u30df\u30ca\u30fc\uff08\u7121\u6599\u30fb1on1\u30fb60\u5206\uff09\u306e\u4e88\u7d04\u753b\u9762\u3078\" style=\"flex:1 1 280px;max-width:360px;text-decoration:none;\"><img decoding=\"async\" src=\"https:\/\/genai-ai.co.jp\/ai-kanri\/wp-content\/uploads\/2026\/05\/cta_seminar_claude_code_2026.jpg\" alt=\"Claude Code \u5b8c\u5168\u89e3\u8aac\u30bb\u30df\u30ca\u30fc\uff5c\u7d4c\u55b6\u8005\u30fb\u4f1a\u793e\u5f79\u54e1\u5c02\u7528 1on1 60\u5206 \u7121\u6599\" style=\"width:100%;height:auto;border-radius:8px;display:block;\"><\/a><a href=\"https:\/\/aikanri.genai-ai.co.jp\/?utm_source=blog&#038;utm_medium=h2banner&#038;utm_campaign=cc-css-color&#038;utm_content=h2-banner-kanri\" target=\"_blank\" rel=\"noopener\" aria-label=\"AI\u9b3c\u7ba1\u7406 \u516c\u5f0f\u30b5\u30a4\u30c8\u3078\" style=\"flex:1 1 280px;max-width:360px;text-decoration:none;\"><img decoding=\"async\" src=\"https:\/\/genai-ai.co.jp\/ai-kanri\/wp-content\/uploads\/2026\/05\/cta_blog_1to1.jpg\" alt=\"Claude Code\u3092\u7d4c\u55b6\u306b\u6d3b\u304b\u3057\u305f\u3044\u65b9\u3078 \u2014 AI\u9b3c\u7ba1\u7406\" style=\"width:100%;height:auto;border-radius:8px;display:block;\"><\/a><\/div>\n\n\n<div id=\"sec-08\"><\/div>\n<h2 class=\"section-header-img\" style=\"margin:32px 0 24px;border-radius:8px;overflow:hidden;background:linear-gradient(135deg,#1a1a1a 0%,#2a1015 100%);padding:32px 28px;color:#fff;position:relative;border:none;border-left:none;text-align:left;\">\n  <span class=\"section-number\" style=\"display:block;\">08<\/span>\n  <span class=\"section-label\" style=\"display:block;\">INHERITANCE<\/span>\n  <span class=\"section-title\" style=\"display:block;\">color\u30d7\u30ed\u30d1\u30c6\u30a3\u306e\u7d99\u627f\u3068\u7279\u6b8a\u6027\uff08specificity\uff09<\/span>\n  <span class=\"section-desc\">\u306a\u305c\u601d\u3063\u305f\u901a\u308a\u306e\u8272\u306b\u306a\u3089\u306a\u3044\u306e\u304b\u7406\u89e3\u3059\u308b<\/span>\n<\/h2>\n\n\n\n<div style=\"background:#f8f9fa;border-left:4px solid #6b7280;border-radius:0 8px 8px 0;padding:16px 20px;margin:20px 0;\"><p style=\"margin:0 0 4px;font-size:13px;font-weight:700;color:#6b7280;letter-spacing:1px;\">&#128218; \u7528\u8a9e\u89e3\u8aac<\/p><p style=\"margin:0;font-size:15px;line-height:1.7;\"><strong>CSS\u306e\u7d99\u627f\uff08Inheritance\uff09<\/strong>\uff1a\u89aa\u8981\u7d20\u306b\u8a2d\u5b9a\u3057\u305f\u30b9\u30bf\u30a4\u30eb\u304c\u5b50\u8981\u7d20\u306b\u3082\u5f15\u304d\u7d99\u304c\u308c\u308b\u4ed5\u7d44\u307f\u3002color\u30d7\u30ed\u30d1\u30c6\u30a3\u306f\u7d99\u627f\u30d7\u30ed\u30d1\u30c6\u30a3\u306e\u4e00\u3064\u3067\u3001body\u306bcolor: #333333\u3068\u8a2d\u5b9a\u3059\u308c\u3070\u3001\u7279\u306b\u6307\u5b9a\u304c\u306a\u3044\u9650\u308a\u5b50\u8981\u7d20\u306e\u30c6\u30ad\u30b9\u30c8\u3082\u3059\u3079\u3066\u305d\u306e\u8272\u306b\u306a\u308a\u307e\u3059\u3002<\/p><\/div>\n\n\n\n<p class=\"wp-block-paragraph\">CSS\u306e<strong>color\u30d7\u30ed\u30d1\u30c6\u30a3\u306f\u7d99\u627f\u3055\u308c\u307e\u3059<\/strong>\u3002<br>\u3064\u307e\u308a\u3001\u89aa\u8981\u7d20\u306b\u8272\u3092\u6307\u5b9a\u3059\u308b\u3068\u3001\u5b50\u8981\u7d20\u306e\u30c6\u30ad\u30b9\u30c8\u3082\u540c\u3058\u8272\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<div style=\"background:#1e1e1e;border-radius:8px;padding:20px 24px;margin:20px 0;overflow-x:auto;\"><pre style=\"margin:0;color:#d4d4d4;font-family:'Courier New',Courier,monospace;font-size:14px;line-height:1.7;white-space:pre;\">\/* body\u306b\u8272\u3092\u8a2d\u5b9a\u3059\u308b\u3068\u5168\u30c6\u30ad\u30b9\u30c8\u306b\u7d99\u627f *\/\nbody {\n  color: #333333; \/* \u30b5\u30a4\u30c8\u5168\u4f53\u306e\u30c6\u30ad\u30b9\u30c8\u8272 *\/\n}\n\n\/* \u500b\u5225\u6307\u5b9a\u3067\u4e0a\u66f8\u304d *\/\nh1 {\n  color: #1a1a1a; \/* \u898b\u51fa\u3057\u306f\u3088\u308a\u6fc3\u304f *\/\n}\n\na {\n  color: #2563eb; \/* \u30ea\u30f3\u30af\u306f\u30d6\u30eb\u30fc *\/\n}\n\n.muted {\n  color: #9ca3af; \/* \u88dc\u8db3\u30c6\u30ad\u30b9\u30c8\u306f\u8584\u3044\u30b0\u30ec\u30fc *\/\n}<\/pre><\/div>\n\n\n\n<div style=\"background:#f8f9fa;border-left:4px solid #6b7280;border-radius:0 8px 8px 0;padding:16px 20px;margin:20px 0;\"><p style=\"margin:0 0 4px;font-size:13px;font-weight:700;color:#6b7280;letter-spacing:1px;\">&#128218; \u7528\u8a9e\u89e3\u8aac<\/p><p style=\"margin:0;font-size:15px;line-height:1.7;\"><strong>CSS\u306e\u7279\u6b8a\u6027\uff08Specificity\uff09<\/strong>\uff1aCSS\u30eb\u30fc\u30eb\u304c\u8907\u6570\u3042\u308b\u5834\u5408\u3001\u3069\u306e\u30eb\u30fc\u30eb\u304c\u512a\u5148\u3055\u308c\u308b\u304b\u3092\u6c7a\u3081\u308b\u4ed5\u7d44\u307f\u3002\u30bb\u30ec\u30af\u30bf\u30fc\u306e\u7a2e\u985e\u306b\u3088\u3063\u3066\u70b9\u6570\u304c\u6c7a\u307e\u308a\u3001\u70b9\u6570\u304c\u9ad8\u3044\u307b\u3069\u512a\u5148\u3055\u308c\u307e\u3059\u3002ID\u30bb\u30ec\u30af\u30bf\u30fc\uff08#\uff09> \u30af\u30e9\u30b9\u30bb\u30ec\u30af\u30bf\u30fc\uff08.\uff09> \u30bf\u30b0\u30bb\u30ec\u30af\u30bf\u30fc\uff08p, h1\u306a\u3069\uff09\u306e\u9806\u3067\u5f37\u529b\u3067\u3059\u3002<\/p><\/div>\n\n\n\n<p class=\"wp-block-paragraph\">\u540c\u3058\u8981\u7d20\u306b\u8907\u6570\u306e\u8272\u6307\u5b9a\u304c\u3042\u308b\u5834\u5408\u3001<strong>\u3069\u308c\u304c\u9069\u7528\u3055\u308c\u308b\u304b\u306f\u300c\u7279\u6b8a\u6027\uff08specificity\uff09\u300d<\/strong>\u3067\u6c7a\u307e\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<div class=\"g-flow-row\" style=\"margin:24px 0;\">\n  <div class=\"g-flow-item\">!important<br><small>\u6700\u5f37\uff08\u7dca\u6025\u7528\uff09<\/small><\/div>\n  <div class=\"g-flow-arrow\">&#8594;<\/div>\n  <div class=\"g-flow-item\">ID (#id)<br><small>0-1-0-0<\/small><\/div>\n  <div class=\"g-flow-arrow\">&#8594;<\/div>\n  <div class=\"g-flow-item\">Class (.cls)<br><small>0-0-1-0<\/small><\/div>\n  <div class=\"g-flow-arrow\">&#8594;<\/div>\n  <div class=\"g-flow-item\">Tag (p, h1)<br><small>0-0-0-1<\/small><\/div>\n<\/div>\n\n\n\n<div style=\"background:#1e1e1e;border-radius:8px;padding:20px 24px;margin:20px 0;overflow-x:auto;\"><pre style=\"margin:0;color:#d4d4d4;font-family:'Courier New',Courier,monospace;font-size:14px;line-height:1.7;white-space:pre;\">\/* \u7279\u6b8a\u6027\u306e\u6bd4\u8f03 *\/\np { color: gray; }            \/* 0,0,0,1 \u2014 \u30bf\u30b0\u30bb\u30ec\u30af\u30bf\u30fc\uff08\u5f31\u3044\uff09 *\/\n.text { color: blue; }        \/* 0,0,1,0 \u2014 \u30af\u30e9\u30b9\u30bb\u30ec\u30af\u30bf\u30fc *\/\n#main { color: red; }         \/* 0,1,0,0 \u2014 ID\u30bb\u30ec\u30af\u30bf\u30fc\uff08\u5f37\u3044\uff09 *\/\np { color: green !important; } \/* \u6700\u5f37\uff08\u3067\u304d\u308b\u3060\u3051\u4f7f\u308f\u306a\u3044\uff09 *\/\n\n\/* \u540c\u3058\u7279\u6b8a\u6027\u306a\u3089\u5f8c\u306b\u66f8\u3044\u305f\u65b9\u304c\u512a\u5148 *\/\np { color: red; }\np { color: blue; } \/* \u3053\u3061\u3089\u304c\u9069\u7528\u3055\u308c\u308b *\/<\/pre><\/div>\n\n\n\n<div style=\"background:#fef2f2;border:2px solid #dc2626;border-radius:8px;padding:20px 24px;margin:24px 0;\"><div style=\"display:flex;align-items:center;gap:8px;margin-bottom:12px;\"><span style=\"font-size:20px;\">&#9888;&#65039;<\/span><strong style=\"color:#dc2626;font-size:16px;\">!important\u306e\u591a\u7528\u306f\u907f\u3051\u308b<\/strong><\/div><p style=\"margin:0;font-size:15px;line-height:1.8;color:#333;\">!important\u3092\u591a\u7528\u3059\u308b\u3068CSS\u304c\u8907\u96d1\u306b\u306a\u308a\u3001\u5f8c\u304b\u3089\u4fee\u6b63\u304c\u56f0\u96e3\u306b\u306a\u308a\u307e\u3059\u3002\u300c\u306a\u305c\u304b\u3053\u306e\u8272\u304c\u5909\u308f\u3089\u306a\u3044\u300d\u3068\u3044\u3046\u554f\u984c\u306e\u591a\u304f\u306f\u7279\u6b8a\u6027\u306e\u554f\u984c\u3067\u3059\u3002\u307e\u305a\u958b\u767a\u8005\u30c4\u30fc\u30eb\u3067\u4f55\u306e\u30eb\u30fc\u30eb\u304c\u9069\u7528\u3055\u308c\u3066\u3044\u308b\u304b\u78ba\u8a8d\u3057\u307e\u3057\u3087\u3046\u3002<\/p><\/div>\n\n\n\n<div class=\"balloon-wrap\">\n  <div class=\"balloon-icon\">\n    <img decoding=\"async\" src=\"https:\/\/genai-ai.co.jp\/ai-kanri\/wp-content\/uploads\/2026\/04\/ceo-sugasawa.jpg\" alt=\"\u4ee3\u8868\u83c5\u6fa4\">\n    <span class=\"balloon-name\">\u4ee3\u8868\u83c5\u6fa4<\/span>\n  <\/div>\n  <div class=\"balloon-body\">CSS\u3067\u300c\u8272\u3092\u5909\u3048\u305f\u3064\u3082\u308a\u306a\u306e\u306b\u5909\u308f\u3089\u306a\u3044\u300d\u3068\u3044\u3046\u554f\u984c\u306f\u300199%\u304c\u7279\u6b8a\u6027\uff08specificity\uff09\u306e\u7af6\u5408\u3067\u3059\u3002\u30af\u30e9\u30b9\u30bb\u30ec\u30af\u30bf\u30fc\u3092\u5897\u3084\u3059\u304b\u3001\u30bb\u30ec\u30af\u30bf\u30fc\u3092\u898b\u76f4\u305b\u3070\u89e3\u6c7a\u3057\u307e\u3059\u3002<\/div>\n<\/div>\n\n\n<div style=\"margin:48px 0 8px;display:flex;gap:12px;justify-content:center;flex-wrap:wrap;\"><a href=\"https:\/\/aikanri.genai-ai.co.jp\/seminar2-blog\/?utm_source=blog&#038;utm_medium=h2banner&#038;utm_content=cc-css-color&#038;blog_slug=cc-css-color\" target=\"_blank\" rel=\"noopener\" aria-label=\"Claude Code \u5b8c\u5168\u89e3\u8aac\u30bb\u30df\u30ca\u30fc\uff08\u7121\u6599\u30fb1on1\u30fb60\u5206\uff09\u306e\u4e88\u7d04\u753b\u9762\u3078\" style=\"flex:1 1 280px;max-width:360px;text-decoration:none;\"><img decoding=\"async\" src=\"https:\/\/genai-ai.co.jp\/ai-kanri\/wp-content\/uploads\/2026\/05\/cta_seminar_claude_code_2026.jpg\" alt=\"Claude Code \u5b8c\u5168\u89e3\u8aac\u30bb\u30df\u30ca\u30fc\uff5c\u7d4c\u55b6\u8005\u30fb\u4f1a\u793e\u5f79\u54e1\u5c02\u7528 1on1 60\u5206 \u7121\u6599\" style=\"width:100%;height:auto;border-radius:8px;display:block;\"><\/a><a href=\"https:\/\/aikanri.genai-ai.co.jp\/?utm_source=blog&#038;utm_medium=h2banner&#038;utm_campaign=cc-css-color&#038;utm_content=h2-banner-kanri\" target=\"_blank\" rel=\"noopener\" aria-label=\"AI\u9b3c\u7ba1\u7406 \u516c\u5f0f\u30b5\u30a4\u30c8\u3078\" style=\"flex:1 1 280px;max-width:360px;text-decoration:none;\"><img decoding=\"async\" src=\"https:\/\/genai-ai.co.jp\/ai-kanri\/wp-content\/uploads\/2026\/05\/cta_blog_1to1.jpg\" alt=\"Claude Code\u3092\u7d4c\u55b6\u306b\u6d3b\u304b\u3057\u305f\u3044\u65b9\u3078 \u2014 AI\u9b3c\u7ba1\u7406\" style=\"width:100%;height:auto;border-radius:8px;display:block;\"><\/a><\/div>\n\n\n<div id=\"sec-09\"><\/div>\n<h2 class=\"section-header-img\" style=\"margin:32px 0 24px;border-radius:8px;overflow:hidden;background:linear-gradient(135deg,#1a1a1a 0%,#2a1015 100%);padding:32px 28px;color:#fff;position:relative;border:none;border-left:none;text-align:left;\">\n  <span class=\"section-number\" style=\"display:block;\">09<\/span>\n  <span class=\"section-label\" style=\"display:block;\">TEXT STYLE<\/span>\n  <span class=\"section-title\" style=\"display:block;\">\u30c6\u30ad\u30b9\u30c8\u88c5\u98fe\u3068\u306e\u7d44\u307f\u5408\u308f\u305b<\/span>\n  <span class=\"section-desc\">font-weight\u30fbtext-decoration\u3068\u4e00\u7dd2\u306b\u4f7f\u3046<\/span>\n<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">color\u30d7\u30ed\u30d1\u30c6\u30a3\u306f\u4ed6\u306e\u30c6\u30ad\u30b9\u30c8\u95a2\u9023\u30d7\u30ed\u30d1\u30c6\u30a3\u3068\u7d44\u307f\u5408\u308f\u305b\u308b\u3053\u3068\u3067\u3001<br><strong>\u3088\u308a\u8868\u73fe\u8c4a\u304b\u306a\u30c7\u30b6\u30a4\u30f3<\/strong>\u304c\u4f5c\u308c\u307e\u3059\u3002<\/p>\n\n\n\n<div style=\"background:#1e1e1e;border-radius:8px;padding:20px 24px;margin:20px 0;overflow-x:auto;\"><pre style=\"margin:0;color:#d4d4d4;font-family:'Courier New',Courier,monospace;font-size:14px;line-height:1.7;white-space:pre;\">\/* \u30c6\u30ad\u30b9\u30c8\u88c5\u98fe\u3068\u306e\u7d44\u307f\u5408\u308f\u305b\u4f8b *\/\n\n\/* \u592a\u5b57 + \u8272 *\/\n.emphasis {\n  color: #dc2626;\n  font-weight: 700; \/* \u30dc\u30fc\u30eb\u30c9\uff08\u592a\u5b57\uff09 *\/\n}\n\n\/* \u4e0b\u7dda + \u8272 *\/\na {\n  color: #2563eb;\n  text-decoration: underline;\n}\n\n\/* \u4e0b\u7dda\u306a\u3057 + \u8272\uff08\u30e2\u30c0\u30f3\u306a\u30ea\u30f3\u30af\u30b9\u30bf\u30a4\u30eb\uff09 *\/\na {\n  color: #2563eb;\n  text-decoration: none;\n}\na:hover {\n  text-decoration: underline; \/* \u30db\u30d0\u30fc\u6642\u306e\u307f\u4e0b\u7dda *\/\n}\n\n\/* \u53d6\u308a\u6d88\u3057\u7dda + \u8272 *\/\n.old-price {\n  color: #9ca3af;\n  text-decoration: line-through;\n}\n\n\/* \u5927\u6587\u5b57 + \u8272 *\/\n.label {\n  color: #6b7280;\n  text-transform: uppercase;\n  letter-spacing: 1px;\n  font-size: 12px;\n}<\/pre><\/div>\n\n\n\n<p class=\"wp-block-paragraph\">\u30ea\u30f3\u30af\u306e\u8272\u3092\u5909\u3048\u308b\u3068\u304d\u306f<strong>:hover\uff08\u30db\u30d0\u30fc\uff09\u64ec\u4f3c\u30af\u30e9\u30b9<\/strong>\u3068\u7d44\u307f\u5408\u308f\u305b\u308b\u3068\u3001<br>\u30de\u30a6\u30b9\u3092\u4e57\u305b\u305f\u3068\u304d\u306e\u8272\u5909\u5316\u3067\u64cd\u4f5c\u6027\u304c\u5411\u4e0a\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<div style=\"background:#1e1e1e;border-radius:8px;padding:20px 24px;margin:20px 0;overflow-x:auto;\"><pre style=\"margin:0;color:#d4d4d4;font-family:'Courier New',Courier,monospace;font-size:14px;line-height:1.7;white-space:pre;\">\/* \u30ea\u30f3\u30af\u306e\u72b6\u614b\u5225\u30b9\u30bf\u30a4\u30eb *\/\na:link    { color: #2563eb; }  \/* \u672a\u8a2a\u554f\u30ea\u30f3\u30af *\/\na:visited { color: #7c3aed; }  \/* \u8a2a\u554f\u6e08\u307f\u30ea\u30f3\u30af *\/\na:hover   { color: #1d4ed8; }  \/* \u30db\u30d0\u30fc\u6642 *\/\na:active  { color: #1e40af; }  \/* \u30af\u30ea\u30c3\u30af\u4e2d *\/<\/pre><\/div>\n\n\n\n<div style=\"background:#f0fdf4;border:1px solid #22c55e;border-radius:8px;padding:20px 24px;margin:24px 0;\"><div style=\"display:flex;align-items:center;gap:8px;margin-bottom:12px;\"><span style=\"font-size:18px;\">&#128161;<\/span><strong style=\"color:#16a34a;font-size:15px;\">currentColor \u30ad\u30fc\u30ef\u30fc\u30c9<\/strong><\/div><p style=\"margin:0;font-size:15px;line-height:1.8;color:#333;\">currentColor\u3068\u3044\u3046\u30ad\u30fc\u30ef\u30fc\u30c9\u3092\u4f7f\u3046\u3068\u3001\u305d\u306e\u8981\u7d20\u306ecolor\u30d7\u30ed\u30d1\u30c6\u30a3\u5024\u3092\u53c2\u7167\u3067\u304d\u307e\u3059\u3002border-color: currentColor; \u3068\u66f8\u304f\u3068\u3001\u30c6\u30ad\u30b9\u30c8\u3068\u540c\u3058\u8272\u306e\u30dc\u30fc\u30c0\u30fc\u304c\u81ea\u52d5\u3067\u4f5c\u308c\u307e\u3059\u3002SVG\u30a2\u30a4\u30b3\u30f3\u306e\u8272\u3092\u30c6\u30ad\u30b9\u30c8\u306b\u5408\u308f\u305b\u305f\u3044\u3068\u304d\u306b\u3082\u4fbf\u5229\u3067\u3059\u3002<\/p><\/div>\n\n\n\n<div class=\"balloon-wrap is-right\">\n  <div class=\"balloon-icon\">\n    <img decoding=\"async\" src=\"https:\/\/genai-ai.co.jp\/ai-kanri\/wp-content\/uploads\/2026\/04\/yamazaki-avatar.png\" alt=\"AI\u9b3c\u7ba1\u7406\u5c71\u5d0e\">\n    <span class=\"balloon-name\">AI\u9b3c\u7ba1\u7406\u5c71\u5d0e<\/span>\n  <\/div>\n  <div class=\"balloon-body\">color\u30d7\u30ed\u30d1\u30c6\u30a3\u306ftext-decoration\u306e\u8272\u306b\u3082\u5f71\u97ff\u3057\u307e\u3059\u3002color: red\u306b\u3059\u308b\u3068\u30c6\u30ad\u30b9\u30c8\u3060\u3051\u3067\u306a\u304f\u4e0b\u7dda\u3082\u8d64\u306b\u306a\u308a\u307e\u3059\u3002\u4e0b\u7dda\u3060\u3051\u5225\u306e\u8272\u306b\u3057\u305f\u3044\u5834\u5408\u306ftext-decoration-color\u30d7\u30ed\u30d1\u30c6\u30a3\u3092\u4f7f\u3044\u307e\u3057\u3087\u3046\u3002<\/div>\n<\/div>\n\n\n<div style=\"margin:48px 0 8px;display:flex;gap:12px;justify-content:center;flex-wrap:wrap;\"><a href=\"https:\/\/aikanri.genai-ai.co.jp\/seminar2-blog\/?utm_source=blog&#038;utm_medium=h2banner&#038;utm_content=cc-css-color&#038;blog_slug=cc-css-color\" target=\"_blank\" rel=\"noopener\" aria-label=\"Claude Code \u5b8c\u5168\u89e3\u8aac\u30bb\u30df\u30ca\u30fc\uff08\u7121\u6599\u30fb1on1\u30fb60\u5206\uff09\u306e\u4e88\u7d04\u753b\u9762\u3078\" style=\"flex:1 1 280px;max-width:360px;text-decoration:none;\"><img decoding=\"async\" src=\"https:\/\/genai-ai.co.jp\/ai-kanri\/wp-content\/uploads\/2026\/05\/cta_seminar_claude_code_2026.jpg\" alt=\"Claude Code \u5b8c\u5168\u89e3\u8aac\u30bb\u30df\u30ca\u30fc\uff5c\u7d4c\u55b6\u8005\u30fb\u4f1a\u793e\u5f79\u54e1\u5c02\u7528 1on1 60\u5206 \u7121\u6599\" style=\"width:100%;height:auto;border-radius:8px;display:block;\"><\/a><a href=\"https:\/\/aikanri.genai-ai.co.jp\/?utm_source=blog&#038;utm_medium=h2banner&#038;utm_campaign=cc-css-color&#038;utm_content=h2-banner-kanri\" target=\"_blank\" rel=\"noopener\" aria-label=\"AI\u9b3c\u7ba1\u7406 \u516c\u5f0f\u30b5\u30a4\u30c8\u3078\" style=\"flex:1 1 280px;max-width:360px;text-decoration:none;\"><img decoding=\"async\" src=\"https:\/\/genai-ai.co.jp\/ai-kanri\/wp-content\/uploads\/2026\/05\/cta_blog_1to1.jpg\" alt=\"Claude Code\u3092\u7d4c\u55b6\u306b\u6d3b\u304b\u3057\u305f\u3044\u65b9\u3078 \u2014 AI\u9b3c\u7ba1\u7406\" style=\"width:100%;height:auto;border-radius:8px;display:block;\"><\/a><\/div>\n\n\n<div id=\"sec-10\"><\/div>\n<h2 class=\"section-header-img\" style=\"margin:32px 0 24px;border-radius:8px;overflow:hidden;background:linear-gradient(135deg,#1a1a1a 0%,#2a1015 100%);padding:32px 28px;color:#fff;position:relative;border:none;border-left:none;text-align:left;\">\n  <span class=\"section-number\" style=\"display:block;\">10<\/span>\n  <span class=\"section-label\" style=\"display:block;\">DARK MODE<\/span>\n  <span class=\"section-title\" style=\"display:block;\">\u30c0\u30fc\u30af\u30e2\u30fc\u30c9\u5bfe\u5fdc\uff08prefers-color-scheme\uff09<\/span>\n  <span class=\"section-desc\">\u30e6\u30fc\u30b6\u30fc\u306e\u8a2d\u5b9a\u306b\u5408\u308f\u305b\u3066\u81ea\u52d5\u3067\u8272\u3092\u5207\u308a\u66ff\u3048\u308b<\/span>\n<\/h2>\n\n\n\n<div style=\"background:#f8f9fa;border-left:4px solid #6b7280;border-radius:0 8px 8px 0;padding:16px 20px;margin:20px 0;\"><p style=\"margin:0 0 4px;font-size:13px;font-weight:700;color:#6b7280;letter-spacing:1px;\">&#128218; \u7528\u8a9e\u89e3\u8aac<\/p><p style=\"margin:0;font-size:15px;line-height:1.7;\"><strong>prefers-color-scheme<\/strong>\uff1a\u30e6\u30fc\u30b6\u30fc\u306eOS\u307e\u305f\u306f\u30d6\u30e9\u30a6\u30b6\u306e\u30ab\u30e9\u30fc\u30e2\u30fc\u30c9\u8a2d\u5b9a\uff08\u30e9\u30a4\u30c8\/\u30c0\u30fc\u30af\uff09\u3092\u691c\u77e5\u3059\u308bCSS\u30e1\u30c7\u30a3\u30a2\u30af\u30a8\u30ea\u3002@media (prefers-color-scheme: dark) \u5185\u306b\u30b9\u30bf\u30a4\u30eb\u3092\u66f8\u304f\u3068\u3001\u30c0\u30fc\u30af\u30e2\u30fc\u30c9\u8a2d\u5b9a\u306e\u30e6\u30fc\u30b6\u30fc\u306b\u81ea\u52d5\u3067\u9069\u7528\u3055\u308c\u307e\u3059\u3002\u73fe\u4ee3\u306eWeb\u30b5\u30a4\u30c8\u3067\u5fc5\u9808\u306e\u5bfe\u5fdc\u3067\u3059\u3002<\/p><\/div>\n\n\n\n<p class=\"wp-block-paragraph\">\u6700\u8fd1\u306f\u30b9\u30de\u30db\u30fbPC\u3068\u3082\u306b<strong>\u30c0\u30fc\u30af\u30e2\u30fc\u30c9<\/strong>\u3092\u4f7f\u3046\u30e6\u30fc\u30b6\u30fc\u304c\u5897\u3048\u3066\u3044\u307e\u3059\u3002<br>CSS\u306e<code>prefers-color-scheme<\/code>\u30e1\u30c7\u30a3\u30a2\u30af\u30a8\u30ea\u3092\u4f7f\u3048\u3070\u3001<br>\u30e6\u30fc\u30b6\u30fc\u306e\u8a2d\u5b9a\u306b\u5408\u308f\u305b\u3066\u81ea\u52d5\u3067\u6587\u5b57\u8272\u30fb\u80cc\u666f\u8272\u3092\u5207\u308a\u66ff\u3048\u3089\u308c\u307e\u3059\u3002<\/p>\n\n\n\n<div style=\"background:#1e1e1e;border-radius:8px;padding:20px 24px;margin:20px 0;overflow-x:auto;\"><pre style=\"margin:0;color:#d4d4d4;font-family:'Courier New',Courier,monospace;font-size:14px;line-height:1.7;white-space:pre;\">\/* \u30e9\u30a4\u30c8\u30e2\u30fc\u30c9\uff08\u30c7\u30d5\u30a9\u30eb\u30c8\uff09 *\/\nbody {\n  color: #333333;\n  background-color: #ffffff;\n}\n\nh1, h2, h3 {\n  color: #1a1a1a;\n}\n\na {\n  color: #2563eb;\n}\n\n\/* \u30c0\u30fc\u30af\u30e2\u30fc\u30c9\uff08OS\u306e\u8a2d\u5b9a\u304c\u30c0\u30fc\u30af\u306e\u5834\u5408\uff09 *\/\n@media (prefers-color-scheme: dark) {\n  body {\n    color: #e5e7eb;         \/* \u660e\u308b\u3044\u30b0\u30ec\u30fc\u306e\u30c6\u30ad\u30b9\u30c8 *\/\n    background-color: #111827; \/* \u6df1\u3044\u30cd\u30a4\u30d3\u30fc\u80cc\u666f *\/\n  }\n\n  h1, h2, h3 {\n    color: #f9fafb;          \/* \u307b\u307c\u767d\u306e\u898b\u51fa\u3057 *\/\n  }\n\n  a {\n    color: #60a5fa;          \/* \u660e\u308b\u3044\u30d6\u30eb\u30fc\u306e\u30ea\u30f3\u30af *\/\n  }\n}<\/pre><\/div>\n\n\n\n<p class=\"wp-block-paragraph\">CSS\u5909\u6570\uff08\u30ab\u30b9\u30bf\u30e0\u30d7\u30ed\u30d1\u30c6\u30a3\uff09\u3092\u4f7f\u3046\u3068\u3001\u30c0\u30fc\u30af\u30e2\u30fc\u30c9\u5bfe\u5fdc\u304c\u3088\u308a\u6574\u7406\u3055\u308c\u307e\u3059\u3002<\/p>\n\n\n\n<div style=\"background:#1e1e1e;border-radius:8px;padding:20px 24px;margin:20px 0;overflow-x:auto;\"><pre style=\"margin:0;color:#d4d4d4;font-family:'Courier New',Courier,monospace;font-size:14px;line-height:1.7;white-space:pre;\">:root {\n  --color-text: #333333;\n  --color-heading: #1a1a1a;\n  --color-link: #2563eb;\n  --color-bg: #ffffff;\n}\n\n@media (prefers-color-scheme: dark) {\n  :root {\n    --color-text: #e5e7eb;\n    --color-heading: #f9fafb;\n    --color-link: #60a5fa;\n    --color-bg: #111827;\n  }\n}\n\n\/* \u672c\u6587\u3067\u306f\u5909\u6570\u3092\u53c2\u7167\u3059\u308b\u3060\u3051 *\/\nbody { color: var(--color-text); background-color: var(--color-bg); }\nh1   { color: var(--color-heading); }\na    { color: var(--color-link); }<\/pre><\/div>\n\n\n\n<div class=\"step-item\"><div class=\"step-num\">1<\/div><div class=\"step-content\"><strong>CSS\u5909\u6570\uff08:root\uff09\u3067\u30ab\u30e9\u30fc\u30d1\u30ec\u30c3\u30c8\u3092\u5b9a\u7fa9\u3059\u308b<\/strong>\u5909\u6570\u540d\u306f--color-text, --color-bg\u306e\u3088\u3046\u306b\u610f\u5473\u306e\u3042\u308b\u540d\u524d\u306b\u3059\u308b<\/div><\/div>\n<div class=\"step-item\"><div class=\"step-num\">2<\/div><div class=\"step-content\"><strong>@media (prefers-color-scheme: dark) \u3067\u30c0\u30fc\u30af\u7528\u306e\u5024\u3092\u4e0a\u66f8\u304d<\/strong>\u30e9\u30a4\u30c8\u7528\u3068\u306e\u5dee\u5206\u3060\u3051\u66f8\u3051\u3070OK<\/div><\/div>\n<div class=\"step-item\"><div class=\"step-num\">3<\/div><div class=\"step-content\"><strong>\u672c\u6587\u30b9\u30bf\u30a4\u30eb\u3067\u306fvar()\u3067\u5909\u6570\u3092\u53c2\u7167\u3059\u308b<\/strong>\u30e1\u30c7\u30a3\u30a2\u30af\u30a8\u30ea\u306b\u66f8\u304b\u305a\u306b\u6e08\u3080\u306e\u3067\u8a18\u8ff0\u304c\u6e1b\u308b<\/div><\/div>\n\n\n\n<div class=\"balloon-wrap\">\n  <div class=\"balloon-icon\">\n    <img decoding=\"async\" src=\"https:\/\/genai-ai.co.jp\/ai-kanri\/wp-content\/uploads\/2026\/04\/ceo-sugasawa.jpg\" alt=\"\u4ee3\u8868\u83c5\u6fa4\">\n    <span class=\"balloon-name\">\u4ee3\u8868\u83c5\u6fa4<\/span>\n  <\/div>\n  <div class=\"balloon-body\">\u30c0\u30fc\u30af\u30e2\u30fc\u30c9\u5bfe\u5fdc\u306f\u3082\u306f\u3084\u300c\u3042\u308b\u3068\u826f\u3044\u300d\u3067\u306f\u306a\u304f\u300c\u5fc5\u9808\u300d\u306e\u6642\u4ee3\u3067\u3059\u3002\u7279\u306b\u30b9\u30de\u30db\u30e6\u30fc\u30b6\u30fc\u306f\u30d0\u30c3\u30c6\u30ea\u30fc\u7bc0\u7d04\u306e\u305f\u3081\u30c0\u30fc\u30af\u30e2\u30fc\u30c9\u3092ON\u306b\u3057\u3066\u3044\u308b\u65b9\u304c\u591a\u3044\u3067\u3059\u306d\u3002<\/div>\n<\/div>\n\n\n<div style=\"margin:48px 0 8px;display:flex;gap:12px;justify-content:center;flex-wrap:wrap;\"><a href=\"https:\/\/aikanri.genai-ai.co.jp\/seminar2-blog\/?utm_source=blog&#038;utm_medium=h2banner&#038;utm_content=cc-css-color&#038;blog_slug=cc-css-color\" target=\"_blank\" rel=\"noopener\" aria-label=\"Claude Code \u5b8c\u5168\u89e3\u8aac\u30bb\u30df\u30ca\u30fc\uff08\u7121\u6599\u30fb1on1\u30fb60\u5206\uff09\u306e\u4e88\u7d04\u753b\u9762\u3078\" style=\"flex:1 1 280px;max-width:360px;text-decoration:none;\"><img decoding=\"async\" src=\"https:\/\/genai-ai.co.jp\/ai-kanri\/wp-content\/uploads\/2026\/05\/cta_seminar_claude_code_2026.jpg\" alt=\"Claude Code \u5b8c\u5168\u89e3\u8aac\u30bb\u30df\u30ca\u30fc\uff5c\u7d4c\u55b6\u8005\u30fb\u4f1a\u793e\u5f79\u54e1\u5c02\u7528 1on1 60\u5206 \u7121\u6599\" style=\"width:100%;height:auto;border-radius:8px;display:block;\"><\/a><a href=\"https:\/\/aikanri.genai-ai.co.jp\/?utm_source=blog&#038;utm_medium=h2banner&#038;utm_campaign=cc-css-color&#038;utm_content=h2-banner-kanri\" target=\"_blank\" rel=\"noopener\" aria-label=\"AI\u9b3c\u7ba1\u7406 \u516c\u5f0f\u30b5\u30a4\u30c8\u3078\" style=\"flex:1 1 280px;max-width:360px;text-decoration:none;\"><img decoding=\"async\" src=\"https:\/\/genai-ai.co.jp\/ai-kanri\/wp-content\/uploads\/2026\/05\/cta_blog_1to1.jpg\" alt=\"Claude Code\u3092\u7d4c\u55b6\u306b\u6d3b\u304b\u3057\u305f\u3044\u65b9\u3078 \u2014 AI\u9b3c\u7ba1\u7406\" style=\"width:100%;height:auto;border-radius:8px;display:block;\"><\/a><\/div>\n\n\n<div id=\"sec-11\"><\/div>\n<h2 class=\"section-header-img\" style=\"margin:32px 0 24px;border-radius:8px;overflow:hidden;background:linear-gradient(135deg,#1a1a1a 0%,#2a1015 100%);padding:32px 28px;color:#fff;position:relative;border:none;border-left:none;text-align:left;\">\n  <span class=\"section-number\" style=\"display:block;\">11<\/span>\n  <span class=\"section-label\" style=\"display:block;\">ACCESSIBILITY<\/span>\n  <span class=\"section-title\" style=\"display:block;\">\u30a2\u30af\u30bb\u30b7\u30d3\u30ea\u30c6\u30a3\uff1a\u30b3\u30f3\u30c8\u30e9\u30b9\u30c8\u6bd4\u306e\u91cd\u8981\u6027<\/span>\n  <span class=\"section-desc\">\u3059\u3079\u3066\u306e\u4eba\u306b\u8aad\u307f\u3084\u3059\u3044\u8272\u3092\u9078\u3076<\/span>\n<\/h2>\n\n\n\n<div style=\"background:#f8f9fa;border-left:4px solid #6b7280;border-radius:0 8px 8px 0;padding:16px 20px;margin:20px 0;\"><p style=\"margin:0 0 4px;font-size:13px;font-weight:700;color:#6b7280;letter-spacing:1px;\">&#128218; \u7528\u8a9e\u89e3\u8aac<\/p><p style=\"margin:0;font-size:15px;line-height:1.7;\"><strong>\u30b3\u30f3\u30c8\u30e9\u30b9\u30c8\u6bd4\uff08Contrast Ratio\uff09<\/strong>\uff1a\u30c6\u30ad\u30b9\u30c8\u8272\u3068\u80cc\u666f\u8272\u306e\u660e\u308b\u3055\u306e\u5dee\u3092\u6570\u5024\u5316\u3057\u305f\u3082\u306e\u3002WCAG\uff08Web\u30b3\u30f3\u30c6\u30f3\u30c4\u30a2\u30af\u30bb\u30b7\u30d3\u30ea\u30c6\u30a3\u30ac\u30a4\u30c9\u30e9\u30a4\u30f3\uff09\u3067\u306f\u3001\u901a\u5e38\u30c6\u30ad\u30b9\u30c8\u30674.5:1\u4ee5\u4e0a\u3001\u5927\u304d\u306a\u30c6\u30ad\u30b9\u30c8\uff0818px\u4ee5\u4e0a\uff09\u30673:1\u4ee5\u4e0a\u3092\u63a8\u5968\u3057\u3066\u3044\u307e\u3059\u3002\u30b3\u30f3\u30c8\u30e9\u30b9\u30c8\u304c\u4f4e\u3044\u3068\u8996\u529b\u306e\u5f31\u3044\u65b9\u3084\u9ad8\u9f62\u8005\u304c\u8aad\u307f\u306b\u304f\u304f\u306a\u308a\u307e\u3059\u3002<\/p><\/div>\n\n\n\n<p class=\"wp-block-paragraph\">Web\u30b5\u30a4\u30c8\u306e\u30a2\u30af\u30bb\u30b7\u30d3\u30ea\u30c6\u30a3\uff08\u8ab0\u3067\u3082\u4f7f\u3044\u3084\u3059\u3044\u8a2d\u8a08\uff09\u306b\u304a\u3044\u3066\u3001<br><strong>\u30c6\u30ad\u30b9\u30c8\u3068\u80cc\u666f\u306e\u30b3\u30f3\u30c8\u30e9\u30b9\u30c8\u6bd4<\/strong>\u306f\u3068\u3066\u3082\u91cd\u8981\u306a\u8981\u7d20\u3067\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u304a\u3057\u3083\u308c\u306b\u898b\u3048\u3066\u3082\u8aad\u307f\u306b\u304f\u3044\u914d\u8272\u306f\u3001<br>\u9ad8\u9f62\u8005\u30fb\u8996\u529b\u306e\u5f31\u3044\u65b9\u30fb\u8272\u899a\u7279\u6027\u304c\u3042\u308b\u65b9\u3078\u306e\u914d\u616e\u304c\u6b20\u3051\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<table>\n<thead><tr><th>\u57fa\u6e96<\/th><th>\u30c6\u30ad\u30b9\u30c8\u30b5\u30a4\u30ba<\/th><th>\u6700\u4f4e\u30b3\u30f3\u30c8\u30e9\u30b9\u30c8\u6bd4<\/th><th>\u9069\u5408\u30ec\u30d9\u30eb<\/th><\/tr><\/thead>\n<tbody>\n<tr><td>WCAG AA\uff08\u63a8\u5968\u6700\u4f4e\u57fa\u6e96\uff09<\/td><td>\u901a\u5e38\u30c6\u30ad\u30b9\u30c8<\/td><td>4.5:1<\/td><td>AA\u9069\u5408<\/td><\/tr>\n<tr><td>WCAG AA<\/td><td>\u5927\u30c6\u30ad\u30b9\u30c8\uff0818px\u4ee5\u4e0a\uff09<\/td><td>3:1<\/td><td>AA\u9069\u5408<\/td><\/tr>\n<tr><td>WCAG AAA\uff08\u6700\u9ad8\u57fa\u6e96\uff09<\/td><td>\u901a\u5e38\u30c6\u30ad\u30b9\u30c8<\/td><td>7:1<\/td><td>AAA\u9069\u5408<\/td><\/tr>\n<tr><td>WCAG AAA<\/td><td>\u5927\u30c6\u30ad\u30b9\u30c8<\/td><td>4.5:1<\/td><td>AAA\u9069\u5408<\/td><\/tr>\n<\/tbody>\n<\/table>\n\n\n\n<div style=\"background:#1e1e1e;border-radius:8px;padding:20px 24px;margin:20px 0;overflow-x:auto;\"><pre style=\"margin:0;color:#d4d4d4;font-family:'Courier New',Courier,monospace;font-size:14px;line-height:1.7;white-space:pre;\">\/* NG\uff1a\u30b3\u30f3\u30c8\u30e9\u30b9\u30c8\u4e0d\u8db3\u306e\u4f8b *\/\n.bad-example {\n  color: #999999;        \/* \u30e9\u30a4\u30c8\u30b0\u30ec\u30fc\u306e\u30c6\u30ad\u30b9\u30c8 *\/\n  background: #ffffff;   \/* \u767d\u80cc\u666f *\/\n  \/* \u30b3\u30f3\u30c8\u30e9\u30b9\u30c8\u6bd4: 2.85:1 \u2014 WCAG AA\u4e0d\u9069\u5408 *\/\n}\n\n\/* OK\uff1a\u5341\u5206\u306a\u30b3\u30f3\u30c8\u30e9\u30b9\u30c8\u306e\u4f8b *\/\n.good-example {\n  color: #595959;        \/* \u30c0\u30fc\u30af\u30b0\u30ec\u30fc\u306e\u30c6\u30ad\u30b9\u30c8 *\/\n  background: #ffffff;   \/* \u767d\u80cc\u666f *\/\n  \/* \u30b3\u30f3\u30c8\u30e9\u30b9\u30c8\u6bd4: 7.0:1 \u2014 WCAG AAA\u9069\u5408 *\/\n}\n\n\/* \u767d\u80cc\u666f\u3067\u306e\u672c\u6587\u30c6\u30ad\u30b9\u30c8\u5b9a\u756a *\/\nbody {\n  color: #333333; \/* \u30b3\u30f3\u30c8\u30e9\u30b9\u30c8\u6bd4: 12.6:1 \u2014 \u975e\u5e38\u306b\u9ad8\u3044 *\/\n}<\/pre><\/div>\n\n\n\n<div style=\"background:#f0fdf4;border:1px solid #22c55e;border-radius:8px;padding:20px 24px;margin:24px 0;\"><div style=\"display:flex;align-items:center;gap:8px;margin-bottom:12px;\"><span style=\"font-size:18px;\">&#128161;<\/span><strong style=\"color:#16a34a;font-size:15px;\">\u30b3\u30f3\u30c8\u30e9\u30b9\u30c8\u6bd4\u30c1\u30a7\u30c3\u30af\u30c4\u30fc\u30eb<\/strong><\/div><p style=\"margin:0;font-size:15px;line-height:1.8;color:#333;\">WebAIM Contrast Checker\uff08https:\/\/webaim.org\/resources\/contrastchecker\/\uff09\u306b\u30c6\u30ad\u30b9\u30c8\u8272\u3068\u80cc\u666f\u8272\u306eHEX\u5024\u3092\u5165\u308c\u308b\u3060\u3051\u3067\u3001\u30b3\u30f3\u30c8\u30e9\u30b9\u30c8\u6bd4\u3068WCAG\u9069\u5408\u30ec\u30d9\u30eb\u3092\u78ba\u8a8d\u3067\u304d\u307e\u3059\u3002Figma\u306b\u3082\u81ea\u52d5\u30c1\u30a7\u30c3\u30af\u6a5f\u80fd\u304c\u3042\u308a\u307e\u3059\u3002\u30c7\u30b6\u30a4\u30f3\u6bb5\u968e\u3067\u78ba\u8a8d\u3059\u308b\u7fd2\u6163\u3092\u3064\u3051\u307e\u3057\u3087\u3046\u3002<\/p><\/div>\n\n\n\n<div style=\"background:#fafafa;border-radius:8px;padding:16px 20px;margin:16px 0;border-left:4px solid #dc2626;\">\n<div style=\"display:flex;align-items:flex-start;gap:8px;padding:6px 0;font-size:15px;line-height:1.6;\"><span style=\"color:#dc2626;font-size:16px;flex-shrink:0;margin-top:2px;\">&#10004;&#65039;<\/span><span>\u767d\u80cc\u666f\uff08#ffffff\uff09\u306b\u306f #595959 \u4ee5\u4e0a\u306e\u6fc3\u3055\u306e\u30c6\u30ad\u30b9\u30c8\u8272\u3092\u4f7f\u3046<\/span><\/div>\n<div style=\"display:flex;align-items:flex-start;gap:8px;padding:6px 0;font-size:15px;line-height:1.6;\"><span style=\"color:#dc2626;font-size:16px;flex-shrink:0;margin-top:2px;\">&#10004;&#65039;<\/span><span>\u7070\u8272\u80cc\u666f\u306b\u306f\u6fc3\u3044\u8272\u306e\u30c6\u30ad\u30b9\u30c8\u3092\u5408\u308f\u305b\u308b<\/span><\/div>\n<div style=\"display:flex;align-items:flex-start;gap:8px;padding:6px 0;font-size:15px;line-height:1.6;\"><span style=\"color:#dc2626;font-size:16px;flex-shrink:0;margin-top:2px;\">&#10004;&#65039;<\/span><span>\u300c\u8584\u3044\u30b0\u30ec\u30fc\u306e\u6587\u5b57\uff0b\u767d\u80cc\u666f\u300d\u306f\u307b\u307c\u5fc5\u305a\u30b3\u30f3\u30c8\u30e9\u30b9\u30c8\u4e0d\u8db3\u306b\u306a\u308b<\/span><\/div>\n<div style=\"display:flex;align-items:flex-start;gap:8px;padding:6px 0;font-size:15px;line-height:1.6;\"><span style=\"color:#dc2626;font-size:16px;flex-shrink:0;margin-top:2px;\">&#10004;&#65039;<\/span><span>\u88c5\u98fe\u30fb\u30ed\u30b4\u306b\u306f\u53b3\u683c\u306a\u57fa\u6e96\u306f\u9069\u7528\u3055\u308c\u306a\u3044\u304c\u3001\u6848\u5185\u6587\u306b\u306f\u9069\u7528\u3055\u308c\u308b<\/span><\/div>\n<\/div>\n\n\n\n<div class=\"balloon-wrap is-right\">\n  <div class=\"balloon-icon\">\n    <img decoding=\"async\" src=\"https:\/\/genai-ai.co.jp\/ai-kanri\/wp-content\/uploads\/2026\/04\/yamazaki-avatar.png\" alt=\"AI\u9b3c\u7ba1\u7406\u5c71\u5d0e\">\n    <span class=\"balloon-name\">AI\u9b3c\u7ba1\u7406\u5c71\u5d0e<\/span>\n  <\/div>\n  <div class=\"balloon-body\">\u30a2\u30af\u30bb\u30b7\u30d3\u30ea\u30c6\u30a3\u306f\u6700\u521d\u304b\u3089\u610f\u8b58\u3057\u3066\u304a\u304f\u3068\u5f8c\u304b\u3089\u4fee\u6b63\u304c\u6e1b\u308a\u307e\u3059\u3002\u300c\u898b\u305f\u76ee\u304c\u304a\u3057\u3083\u308c\u300d\u3068\u300c\u8ab0\u3067\u3082\u8aad\u3081\u308b\u300d\u3092\u4e21\u7acb\u3059\u308b\u914d\u8272\u3092\u9078\u3073\u307e\u3057\u3087\u3046\u3002<\/div>\n<\/div>\n\n\n<div style=\"margin:48px 0 8px;display:flex;gap:12px;justify-content:center;flex-wrap:wrap;\"><a href=\"https:\/\/aikanri.genai-ai.co.jp\/seminar2-blog\/?utm_source=blog&#038;utm_medium=h2banner&#038;utm_content=cc-css-color&#038;blog_slug=cc-css-color\" target=\"_blank\" rel=\"noopener\" aria-label=\"Claude Code \u5b8c\u5168\u89e3\u8aac\u30bb\u30df\u30ca\u30fc\uff08\u7121\u6599\u30fb1on1\u30fb60\u5206\uff09\u306e\u4e88\u7d04\u753b\u9762\u3078\" style=\"flex:1 1 280px;max-width:360px;text-decoration:none;\"><img decoding=\"async\" src=\"https:\/\/genai-ai.co.jp\/ai-kanri\/wp-content\/uploads\/2026\/05\/cta_seminar_claude_code_2026.jpg\" alt=\"Claude Code \u5b8c\u5168\u89e3\u8aac\u30bb\u30df\u30ca\u30fc\uff5c\u7d4c\u55b6\u8005\u30fb\u4f1a\u793e\u5f79\u54e1\u5c02\u7528 1on1 60\u5206 \u7121\u6599\" style=\"width:100%;height:auto;border-radius:8px;display:block;\"><\/a><a href=\"https:\/\/aikanri.genai-ai.co.jp\/?utm_source=blog&#038;utm_medium=h2banner&#038;utm_campaign=cc-css-color&#038;utm_content=h2-banner-kanri\" target=\"_blank\" rel=\"noopener\" aria-label=\"AI\u9b3c\u7ba1\u7406 \u516c\u5f0f\u30b5\u30a4\u30c8\u3078\" style=\"flex:1 1 280px;max-width:360px;text-decoration:none;\"><img decoding=\"async\" src=\"https:\/\/genai-ai.co.jp\/ai-kanri\/wp-content\/uploads\/2026\/05\/cta_blog_1to1.jpg\" alt=\"Claude Code\u3092\u7d4c\u55b6\u306b\u6d3b\u304b\u3057\u305f\u3044\u65b9\u3078 \u2014 AI\u9b3c\u7ba1\u7406\" style=\"width:100%;height:auto;border-radius:8px;display:block;\"><\/a><\/div>\n\n\n<div id=\"sec-12\"><\/div>\n<h2 class=\"section-header-img\" style=\"margin:32px 0 24px;border-radius:8px;overflow:hidden;background:linear-gradient(135deg,#1a1a1a 0%,#2a1015 100%);padding:32px 28px;color:#fff;position:relative;border:none;border-left:none;text-align:left;\">\n  <span class=\"section-number\" style=\"display:block;\">12<\/span>\n  <span class=\"section-label\" style=\"display:block;\">AI AUTOMATION<\/span>\n  <span class=\"section-title\" style=\"display:block;\">Claude Code\u3067\u914d\u8272\u3092\u81ea\u52d5\u751f\u6210<\/span>\n  <span class=\"section-desc\">AI\u306b\u30ab\u30e9\u30fc\u30d1\u30ec\u30c3\u30c8\u3068CSS\u3092\u4e38\u3054\u3068\u4efb\u305b\u308b<\/span>\n<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">CSS\u306e\u8272\u6307\u5b9a\u306f\u899a\u3048\u308b\u3053\u3068\u304c\u591a\u3044\u2014\u2014\u305d\u3046\u611f\u3058\u305f\u65b9\u3082\u591a\u3044\u3067\u3057\u3087\u3046\u3002<br>\u3067\u3082\u6717\u5831\u304c\u3042\u308a\u307e\u3059\u3002<strong>Claude Code\u3092\u4f7f\u3048\u3070\u3001\u914d\u8272\u8a2d\u8a08\u304b\u3089CSS\u751f\u6210\u307e\u3067\u81ea\u52d5\u5316\u3067\u304d\u307e\u3059\u3002<\/strong><\/p>\n\n\n\n<div style=\"background:#f8f9fa;border-left:4px solid #6b7280;border-radius:0 8px 8px 0;padding:16px 20px;margin:20px 0;\"><p style=\"margin:0 0 4px;font-size:13px;font-weight:700;color:#6b7280;letter-spacing:1px;\">&#128218; \u7528\u8a9e\u89e3\u8aac<\/p><p style=\"margin:0;font-size:15px;line-height:1.7;\"><strong>Claude Code<\/strong>\uff1aAnthropic\uff08\u30af\u30ed\u30fc\u30c9\u958b\u767a\u5143\uff09\u304c\u63d0\u4f9b\u3059\u308bAI\u30b3\u30fc\u30c7\u30a3\u30f3\u30b0\u30a2\u30b7\u30b9\u30bf\u30f3\u30c8\u3002\u30c1\u30e3\u30c3\u30c8\u5f62\u5f0f\u3067CSS\u306e\u66f8\u304d\u65b9\u3092\u8cea\u554f\u3057\u305f\u308a\u3001\u30ab\u30e9\u30fc\u30d1\u30ec\u30c3\u30c8\u306e\u751f\u6210\u30fb\u30b3\u30f3\u30c8\u30e9\u30b9\u30c8\u6bd4\u30c1\u30a7\u30c3\u30af\u30fb\u30c0\u30fc\u30af\u30e2\u30fc\u30c9\u5bfe\u5fdcCSS\u306e\u751f\u6210\u306a\u3069\u3092AI\u306b\u4f9d\u983c\u3067\u304d\u307e\u3059\u3002\u975e\u30a8\u30f3\u30b8\u30cb\u30a2\u3067\u3082\u4f7f\u3048\u308b\u30ec\u30d9\u30eb\u306e\u6307\u793a\u3067\u30d7\u30ed\u30ec\u30d9\u30eb\u306eCSS\u304c\u751f\u6210\u3055\u308c\u307e\u3059\u3002<\/p><\/div>\n\n\n\n<p class=\"wp-block-paragraph\">Claude Code\u3078\u306e\u6307\u793a\u4f8b\u3092\u898b\u3066\u307f\u307e\u3057\u3087\u3046\u3002<\/p>\n\n\n\n<div style=\"background:#1e1e1e;border-radius:8px;padding:20px 24px;margin:20px 0;overflow-x:auto;\"><pre style=\"margin:0;color:#d4d4d4;font-family:'Courier New',Courier,monospace;font-size:14px;line-height:1.7;white-space:pre;\">\u30d7\u30ed\u30f3\u30d7\u30c8\u4f8b\uff1a\n\u300cWeb\u30b5\u30a4\u30c8\u306e\u30ab\u30e9\u30fc\u30d1\u30ec\u30c3\u30c8\u3092\u4f5c\u3063\u3066\u304f\u3060\u3055\u3044\u3002\n\u30e1\u30a4\u30f3\u30ab\u30e9\u30fc\u306f\u8d64\u7cfb\uff08#dc2626\uff09\u3002\n\u30e9\u30a4\u30c8\u30e2\u30fc\u30c9\u3068\u30c0\u30fc\u30af\u30e2\u30fc\u30c9\u306b\u5bfe\u5fdc\u3057\u3001\nWCAG AA\u57fa\u6e96\u3092\u30af\u30ea\u30a2\u3059\u308bCSS\u5909\u6570\u30bb\u30c3\u30c8\u3092\n\u4f5c\u6210\u3057\u3066\u304f\u3060\u3055\u3044\u3002\u300d<\/pre><\/div>\n\n\n\n<p class=\"wp-block-paragraph\">\u4e0a\u306e\u3088\u3046\u306a\u6307\u793a\u3092\u51fa\u3059\u3068\u3001Claude Code\u306f\u4ee5\u4e0b\u306e\u3088\u3046\u306aCSS\u3092\u81ea\u52d5\u751f\u6210\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<div style=\"background:#1e1e1e;border-radius:8px;padding:20px 24px;margin:20px 0;overflow-x:auto;\"><pre style=\"margin:0;color:#d4d4d4;font-family:'Courier New',Courier,monospace;font-size:14px;line-height:1.7;white-space:pre;\">:root {\n  \/* \u30e9\u30a4\u30c8\u30e2\u30fc\u30c9 *\/\n  --color-primary: #dc2626;\n  --color-primary-dark: #991b1b;\n  --color-primary-light: #fca5a5;\n  --color-text: #1f2937;\n  --color-text-muted: #6b7280;\n  --color-bg: #ffffff;\n  --color-bg-secondary: #f9fafb;\n  --color-border: #e5e7eb;\n  --color-link: #2563eb;\n  --color-success: #16a34a;\n  --color-warning: #d97706;\n  --color-error: #dc2626;\n}\n\n@media (prefers-color-scheme: dark) {\n  :root {\n    --color-primary: #f87171;\n    --color-primary-dark: #fca5a5;\n    --color-primary-light: #991b1b;\n    --color-text: #f3f4f6;\n    --color-text-muted: #9ca3af;\n    --color-bg: #111827;\n    --color-bg-secondary: #1f2937;\n    --color-border: #374151;\n    --color-link: #60a5fa;\n    --color-success: #4ade80;\n    --color-warning: #fbbf24;\n    --color-error: #f87171;\n  }\n}<\/pre><\/div>\n\n\n\n<p class=\"wp-block-paragraph\">\u3053\u306eCSS\u3092\u30b3\u30d4\u30fc\u3057\u3066\u4f7f\u3046\u3060\u3051\u3067\u3001<br><strong>\u30c0\u30fc\u30af\u30e2\u30fc\u30c9\u5bfe\u5fdc\u30fbWCAG AA\u6e96\u62e0\u306e\u30ab\u30e9\u30fc\u30d1\u30ec\u30c3\u30c8<\/strong>\u304c\u5b8c\u6210\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u3055\u3089\u306bClaude Code\u306f\u4ee5\u4e0b\u306e\u3088\u3046\u306a\u6307\u793a\u306b\u3082\u5bfe\u5fdc\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<div style=\"background:#fafafa;border-radius:8px;padding:16px 20px;margin:16px 0;border-left:4px solid #dc2626;\">\n<div style=\"display:flex;align-items:flex-start;gap:8px;padding:6px 0;font-size:15px;line-height:1.6;\"><span style=\"color:#dc2626;font-size:16px;flex-shrink:0;margin-top:2px;\">&#10004;&#65039;<\/span><span>\u300c\u3053\u306e\u30c6\u30ad\u30b9\u30c8\u8272\u3068\u80cc\u666f\u8272\u306e\u30b3\u30f3\u30c8\u30e9\u30b9\u30c8\u6bd4\u3092\u8a08\u7b97\u3057\u3066\u300d<\/span><\/div>\n<div style=\"display:flex;align-items:flex-start;gap:8px;padding:6px 0;font-size:15px;line-height:1.6;\"><span style=\"color:#dc2626;font-size:16px;flex-shrink:0;margin-top:2px;\">&#10004;&#65039;<\/span><span>\u300c\u65e2\u5b58\u306eCSS\u30d5\u30a1\u30a4\u30eb\u306ecolor\u5024\u3092CSS\u5909\u6570\u306b\u66f8\u304d\u76f4\u3057\u3066\u300d<\/span><\/div>\n<div style=\"display:flex;align-items:flex-start;gap:8px;padding:6px 0;font-size:15px;line-height:1.6;\"><span style=\"color:#dc2626;font-size:16px;flex-shrink:0;margin-top:2px;\">&#10004;&#65039;<\/span><span>\u300c\u3053\u306e\u30c7\u30b6\u30a4\u30f3\u753b\u50cf\u3092\u898b\u3066\u914d\u8272\u3092\u62bd\u51fa\u3057\u3001CSS\u30ab\u30e9\u30fc\u30d1\u30ec\u30c3\u30c8\u3092\u4f5c\u3063\u3066\u300d<\/span><\/div>\n<div style=\"display:flex;align-items:flex-start;gap:8px;padding:6px 0;font-size:15px;line-height:1.6;\"><span style=\"color:#dc2626;font-size:16px;flex-shrink:0;margin-top:2px;\">&#10004;&#65039;<\/span><span>\u300c\u30a2\u30af\u30bb\u30b7\u30d3\u30ea\u30c6\u30a3\u306e\u554f\u984c\u304c\u3042\u308b\u7b87\u6240\u3092\u6307\u6458\u3057\u3066\u6539\u5584\u30b3\u30fc\u30c9\u3092\u63d0\u6848\u3057\u3066\u300d<\/span><\/div>\n<\/div>\n\n\n\n<div class=\"g-flow-row\" style=\"margin:24px 0;\">\n  <div class=\"g-flow-item\">\u8981\u4ef6\u3092\u4f1d\u3048\u308b<br>\uff08\u30e1\u30a4\u30f3\u30ab\u30e9\u30fc\u7b49\uff09<\/div>\n  <div class=\"g-flow-arrow\">&#8594;<\/div>\n  <div class=\"g-flow-item\">Claude Code\u304c<br>CSS\u751f\u6210<\/div>\n  <div class=\"g-flow-arrow\">&#8594;<\/div>\n  <div class=\"g-flow-item\">\u30b3\u30f3\u30c8\u30e9\u30b9\u30c8\u6bd4<br>\u81ea\u52d5\u30c1\u30a7\u30c3\u30af<\/div>\n  <div class=\"g-flow-arrow\">&#8594;<\/div>\n  <div class=\"g-flow-item\">\u30b3\u30d4\u30fc\u3057\u3066\u4f7f\u3046<\/div>\n<\/div>\n\n\n\n<div class=\"balloon-wrap\">\n  <div class=\"balloon-icon\">\n    <img decoding=\"async\" src=\"https:\/\/genai-ai.co.jp\/ai-kanri\/wp-content\/uploads\/2026\/04\/ceo-sugasawa.jpg\" alt=\"\u4ee3\u8868\u83c5\u6fa4\">\n    <span class=\"balloon-name\">\u4ee3\u8868\u83c5\u6fa4<\/span>\n  <\/div>\n  <div class=\"balloon-body\">AI\u9b3c\u7ba1\u7406\u306e\u8b1b\u5ea7\u3067\u3082\u3001CSS\u8272\u8a2d\u5b9a\u306fClaude Code\u306b\u751f\u6210\u3055\u305b\u308b\u306e\u304c\u6700\u901f\u3068\u6559\u3048\u3066\u3044\u307e\u3059\u3002\u914d\u8272\u306e\u77e5\u8b58\u306f\u30bc\u30ed\u3067\u3082\u3001\u8981\u4ef6\u3092\u65e5\u672c\u8a9e\u3067\u4f1d\u3048\u308b\u3060\u3051\u3067\u30d7\u30ed\u306eCSS\u304c\u51fa\u3066\u304d\u307e\u3059\u3002<\/div>\n<\/div>\n\n\n\n<div class=\"balloon-wrap is-right\">\n  <div class=\"balloon-icon\">\n    <img decoding=\"async\" src=\"https:\/\/genai-ai.co.jp\/ai-kanri\/wp-content\/uploads\/2026\/04\/yamazaki-avatar.png\" alt=\"AI\u9b3c\u7ba1\u7406\u5c71\u5d0e\">\n    <span class=\"balloon-name\">AI\u9b3c\u7ba1\u7406\u5c71\u5d0e<\/span>\n  <\/div>\n  <div class=\"balloon-body\">Web\u30b5\u30a4\u30c8\u306e\u30d6\u30e9\u30f3\u30c9\u30ab\u30e9\u30fc\u304c\u6c7a\u307e\u3063\u3066\u3044\u308c\u3070\u3001\u3042\u3068\u306fClaude\u306b\u300c\u3053\u306eHEX\u30b3\u30fc\u30c9\u3092\u8ef8\u306b\u30d1\u30ec\u30c3\u30c8\u3092\u4f5c\u3063\u3066\u300d\u3068\u983c\u3080\u3060\u3051\u3067\u3059\u3002\u30c0\u30fc\u30af\u30e2\u30fc\u30c9\u5bfe\u5fdc\u3082WCAA\u6e96\u62e0\u3082\u81ea\u52d5\u3067\u3084\u3063\u3066\u304f\u308c\u307e\u3059\u3002<\/div>\n<\/div>\n\n\n\n<p class=\"wp-block-paragraph\">CSS\u306ecolor\u30d7\u30ed\u30d1\u30c6\u30a3\u304b\u3089\u59cb\u307e\u308a\u3001HEX\u30fbRGB\u30fbHSL\u30fb\u30c0\u30fc\u30af\u30e2\u30fc\u30c9\u30fb\u30a2\u30af\u30bb\u30b7\u30d3\u30ea\u30c6\u30a3\u30fbAI\u6d3b\u7528\u307e\u3067\u3001\u4e00\u6c17\u306b\u89e3\u8aac\u3057\u307e\u3057\u305f\u3002<br>\u300cCSS\u3092\u5b66\u307c\u3046\u3068\u3057\u3066\u3044\u308b\u304c\u3001\u4f55\u304b\u3089\u59cb\u3081\u308c\u3070\u3044\u3044\u304b\u308f\u304b\u3089\u306a\u3044\u300d\u300cWeb\u30b5\u30a4\u30c8\u3092\u4f5c\u308a\u305f\u3044\u304c\u975e\u30a8\u30f3\u30b8\u30cb\u30a2\u3067\u4e0d\u5b89\u300d\u2014\u2014\u305d\u3093\u306a\u65b9\u306b\u5411\u3051\u3066\u3001AI\u9b3c\u7ba1\u7406\u3067\u306fClaude Code\u3092\u4f7f\u3063\u305f\u5b9f\u8df5\u7684\u306aWeb\u5236\u4f5c\u652f\u63f4\u3092\u63d0\u4f9b\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<div style=\"background:linear-gradient(135deg,#1a1a1a 0%,#2a1015 100%);border-radius:16px;padding:36px 32px;margin:48px 0 16px;color:#fff;\">\n  <p style=\"font-size:13px;font-weight:700;color:#dc2626;letter-spacing:2px;margin:0 0 12px;\">NEXT STEP<\/p>\n  <p style=\"font-size:22px;font-weight:800;line-height:1.5;margin:0 0 20px;\">\u3053\u306e\u8a18\u4e8b\u306e\u5185\u5bb9\u3092\u3001\u3042\u306a\u305f\u306e\u30d3\u30b8\u30cd\u30b9\u3067<br>\u5b9f\u8df5\u3057\u3066\u307f\u307e\u305b\u3093\u304b\uff1f<\/p>\n  <div style=\"background:rgba(255,255,255,0.06);border:1px solid rgba(255,255,255,0.12);border-radius:12px;padding:24px;max-width:560px;margin:0 auto;\">\n    <p style=\"font-size:13px;color:#dc2626;font-weight:700;margin:0 0 8px;\">AI\u6d3b\u7528\u3092\u81ea\u793e\u3067\u56de\u305b\u308b\u3088\u3046\u306b\u306a\u308a\u305f\u3044\u65b9\u3078<\/p>\n    <p style=\"font-size:20px;font-weight:800;margin:0 0 12px;\">AI\u9b3c\u7ba1\u7406<\/p>\n    <p style=\"font-size:14px;color:rgba(255,255,255,0.75);margin:0 0 20px;line-height:1.7;\">Claude Code\u30fbCowork\u5c0e\u5165\u652f\u63f4\u304b\u3089\u696d\u52d9\u8a2d\u8a08\u30fb\u793e\u5185\u6d78\u900f\u307e\u3067\u5b9f\u8df5\u30d9\u30fc\u30b9\u3067\u4f34\u8d70\u3002\u300c\u81ea\u793e\u3067\u56de\u305b\u308b\u7d44\u7e54\u300d\u309290\u65e5\u3067\u4f5c\u308b\u7d4c\u55b6\u8005\u5411\u3051\u30c8\u30ec\u30fc\u30cb\u30f3\u30b0\u3002<\/p>\n    <div style=\"text-align:center;\">\n      <a href=\"https:\/\/aikanri.genai-ai.co.jp\/?utm_source=blog&utm_medium=article&utm_campaign=cc-css-color&utm_content=next-step-cta\" target=\"_blank\" rel=\"noopener\" style=\"display:inline-block;background:#dc2626;color:#fff;font-weight:700;font-size:15px;padding:14px 32px;border-radius:30px;text-decoration:none;\">AI\u9b3c\u7ba1\u7406\u3092\u8a73\u3057\u304f\u898b\u308b \u2192<\/a>\n    <\/div>\n  <\/div>\n<\/div>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"faq\">\u3088\u304f\u3042\u308b\u8cea\u554f<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">Q. CSS\u306ecolor\u30d7\u30ed\u30d1\u30c6\u30a3\u3068\u306f\u4f55\u3067\u3059\u304b\uff1f<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">A. CSS\u306ecolor\u30d7\u30ed\u30d1\u30c6\u30a3\u306fHTML\u8981\u7d20\u5185\u306e\u30c6\u30ad\u30b9\u30c8\uff08\u6587\u5b57\uff09\u306e\u8272\u3092\u6307\u5b9a\u3059\u308b\u30d7\u30ed\u30d1\u30c6\u30a3\u3067\u3059\u3002\u300ccolor: red;\u300d\u300ccolor: #333333;\u300d\u306e\u3088\u3046\u306b\u66f8\u304d\u3001\u30ab\u30e9\u30fc\u540d\u30fbHEX\u30b3\u30fc\u30c9\u30fbRGB\u30fbRGBA\u306a\u3069\u8907\u6570\u306e\u5f62\u5f0f\u3067\u8272\u3092\u6307\u5b9a\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Q. HEX\u30ab\u30e9\u30fc\u30b3\u30fc\u30c9\u3068RGB\u306e\u9055\u3044\u306f\u4f55\u3067\u3059\u304b\uff1f<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">A. \u8868\u8a18\u65b9\u6cd5\u304c\u9055\u3046\u3060\u3051\u3067\u3001\u540c\u3058\u8272\u3092\u8868\u3057\u3066\u3044\u307e\u3059\u3002HEX\uff08#ff0000\uff09\u306f16\u9032\u6570\u3001RGB\uff08rgb(255,0,0)\uff09\u306f0\u301c255\u306e10\u9032\u6570\u3067\u8272\u3092\u8868\u73fe\u3057\u307e\u3059\u3002\u3069\u3061\u3089\u3092\u4f7f\u3063\u3066\u3082\u540c\u3058\u8272\u306b\u306a\u308a\u307e\u3059\u3002\u30c7\u30b6\u30a4\u30f3\u30c4\u30fc\u30eb\u3068\u306e\u9023\u643a\u3067\u306fHEX\u3001\u30d7\u30ed\u30b0\u30e9\u30e0\u3067\u8a08\u7b97\u3059\u308b\u5834\u5408\u306fRGB\u304c\u4fbf\u5229\u3067\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Q. RGBA\u306e\u30a2\u30eb\u30d5\u30a1\u5024\uff08\u900f\u660e\u5ea6\uff09\u306f\u3069\u3046\u4f7f\u3044\u307e\u3059\u304b\uff1f<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">A. rgba()\u306e4\u756a\u76ee\u306e\u5024\uff080\u301c1\uff09\u3067\u900f\u660e\u5ea6\u3092\u6307\u5b9a\u3057\u307e\u3059\u30020\u304c\u5b8c\u5168\u900f\u660e\u30011\u304c\u5b8c\u5168\u4e0d\u900f\u660e\u3067\u3059\u3002\u4f8b\u3048\u3070reba(220,38,38,0.5)\u306f50%\u900f\u660e\u306e\u8d64\u8272\u306b\u306a\u308a\u307e\u3059\u3002\u80cc\u666f\u306e\u307f\u900f\u660e\u306b\u3057\u305f\u3044\u306a\u3089bgbackground-color: rgba()\u3067\u3001\u30c6\u30ad\u30b9\u30c8\u8272\u306e\u307f\u306b\u4f7f\u3046\u5834\u5408\u306fcolor: rgba()\u3067\u6307\u5b9a\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Q. \u30c0\u30fc\u30af\u30e2\u30fc\u30c9\u306b\u5bfe\u5fdc\u3059\u308b\u306b\u306f\u3069\u3046\u3059\u308c\u3070\u3044\u3044\u3067\u3059\u304b\uff1f<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">A. CSS\u306e@media (prefers-color-scheme: dark) \u30d6\u30ed\u30c3\u30af\u5185\u306b\u30c0\u30fc\u30af\u30e2\u30fc\u30c9\u7528\u306e\u8272\u3092\u6307\u5b9a\u3057\u307e\u3059\u3002CSS\u5909\u6570\uff08--color-text\u7b49\uff09\u3092\u4f7f\u3063\u3066\u30e9\u30a4\u30c8\/\u30c0\u30fc\u30af\u30e2\u30fc\u30c9\u3067\u5909\u6570\u306e\u5024\u3060\u3051\u5207\u308a\u66ff\u3048\u308b\u3068\u7ba1\u7406\u3057\u3084\u3059\u3044\u3067\u3059\u3002Claude Code\u306b\u30c0\u30fc\u30af\u30e2\u30fc\u30c9\u5bfe\u5fdcCSS\u306e\u751f\u6210\u3092\u4f9d\u983c\u3059\u308c\u3070\u81ea\u52d5\u3067\u4f5c\u6210\u3057\u3066\u304f\u308c\u307e\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Q. \u30a2\u30af\u30bb\u30b7\u30d3\u30ea\u30c6\u30a3\u5bfe\u5fdc\u3067\u3069\u3093\u306a\u30b3\u30f3\u30c8\u30e9\u30b9\u30c8\u6bd4\u304c\u5fc5\u8981\u3067\u3059\u304b\uff1f<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">A. WCAG AA\u57fa\u6e96\u3067\u306f\u901a\u5e38\u30c6\u30ad\u30b9\u30c8\uff0818px\u672a\u6e80\uff09\u30674.5:1\u4ee5\u4e0a\u3001\u5927\u304d\u306a\u30c6\u30ad\u30b9\u30c8\uff0818px\u4ee5\u4e0a\uff09\u30673:1\u4ee5\u4e0a\u304c\u5fc5\u8981\u3067\u3059\u3002\u767d\u80cc\u666f\uff08#ffffff\uff09\u306b\u306f#595959\u4ee5\u4e0a\u306e\u6fc3\u3055\u306e\u8272\u3092\u4f7f\u3048\u3070AA\u57fa\u6e96\u3092\u6e80\u305f\u305b\u307e\u3059\u3002WebAIM Contrast Checker\u306a\u3069\u306e\u7121\u6599\u30c4\u30fc\u30eb\u3067HEX\u5024\u3092\u5165\u529b\u3059\u308c\u3070\u5373\u5ea7\u306b\u30c1\u30a7\u30c3\u30af\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Q. HSL\u3067\u306e\u8272\u6307\u5b9a\u306f\u3069\u3093\u306a\u6642\u306b\u4f7f\u3044\u307e\u3059\u304b\uff1f<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">A. HSL\uff08hsl(\u8272\u76f8, \u5f69\u5ea6%, \u660e\u5ea6%)\uff09\u306f\u540c\u3058\u8272\u76f8\u3067\u660e\u5ea6\u3060\u3051\u5909\u3048\u3066\u914d\u8272\u30d0\u30ea\u30a8\u30fc\u30b7\u30e7\u30f3\u3092\u4f5c\u308b\u3068\u304d\u306b\u4fbf\u5229\u3067\u3059\u3002\u4f8b\u3048\u3070hsl(0, 100%, 50%)\u304c\u8d64\u306a\u3089\u3001hsl(0, 100%, 80%)\u3067\u8584\u3044\u8d64\u3001hsl(0, 100%, 30%)\u3067\u6fc3\u3044\u8d64\u304c\u4f5c\u308c\u307e\u3059\u3002\u30d6\u30e9\u30f3\u30c9\u30ab\u30e9\u30fc\u304b\u3089\u81ea\u7136\u306a\u30b0\u30e9\u30c7\u30fc\u30b7\u30e7\u30f3\u3092\u4f5c\u308b\u3068\u304d\u306b\u91cd\u5b9d\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Q. CSS\u306e\u8272\u304c\u5909\u308f\u3089\u306a\u3044\u306e\u306f\u306a\u305c\u3067\u3059\u304b\uff1f<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">A. 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