{"id":28527,"date":"2026-08-12T20:30:58","date_gmt":"2026-08-12T11:30:58","guid":{"rendered":"http:\/\/www.code-magagine.com\/?p=28527"},"modified":"2026-08-13T21:56:26","modified_gmt":"2026-08-13T12:56:26","slug":"css%e3%81%ae%e8%89%b2%e3%81%ae%e6%8c%87%e5%ae%9a%e6%96%b9%e6%b3%95","status":"publish","type":"post","link":"http:\/\/www.code-magagine.com\/?p=28527","title":{"rendered":"css\u306e\u8272\u306e\u6307\u5b9a\u65b9\u6cd5"},"content":{"rendered":"\n<h2 class=\"wp-block-heading\">\u30ab\u30e9\u30fc\u30ad\u30fc\u30ef\u30fc\u30c9<\/h2>\n\n\n\n<pre class=\"wp-block-code\"><code>color: red;<\/code><\/pre>\n\n\n\n<h2 class=\"wp-block-heading\">HEX(16\u9032\u6570)<\/h2>\n\n\n\n<p>\u5b9a\u756a\u306e\u6307\u5b9a\u65b9\u6cd5<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>color: #ff0000;<\/code><\/pre>\n\n\n\n<h2 class=\"wp-block-heading\">RGB<\/h2>\n\n\n\n<p>\u900f\u660e\u5ea6\u3092\u6307\u5b9a\u3057\u305f\u3044\u5834\u5408\u306b\u4f7f\u3046\u3002\u900f\u660e\u5ea6\u306b\u95a2\u3057\u3066\u306f\u3001photoshop\u306e\u30a2\u30eb\u30d5\u30a1\u30c1\u30e3\u30f3\u30cd\u30eb\u306b\u8fd1\u3044\u6982\u5ff5\u3002opacity\u306b\u8fd1\u3044\u3051\u3069\u30ec\u30a4\u30e4\u30fc\u5168\u4f53\u306b\u6307\u5b9a\u305b\u305a\u3001\u80cc\u666f\u3068\u304b\u3060\u3051\u306b\u6307\u5b9a\u3067\u304d\u308b\u306e\u304c\u7279\u5fb4\u3002\uff08\u3082\u3057opacity\u3067\u8981\u7d20\u306b\u6307\u5b9a\u3059\u308b\u3068\u6587\u5b57\u3084\u3001\u5b50\u8981\u7d20\u307e\u3067\u534a\u900f\u660e\u306b\u306a\u3063\u3066\u3057\u307e\u3046\u305f\u3081\u3002\uff09<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>color: rgb(255, 0, 0);\n\/\/ \u900f\u660e\u5ea6\u3082\u6307\u5b9a\u3067\u304d\u308b\u3002\nbackground-color: rgba(0, 0, 0, 0.5);<\/code><\/pre>\n\n\n\n<h2 class=\"wp-block-heading\">HSL<\/h2>\n\n\n\n<p>1990\u5e74\u4ee3\u304b\u3089\u3042\u308b\u3002oklch\u3088\u308a\u3082\u300c\u660e\u308b\u3055\u300d\u306e\u4ed5\u69d8\u304c\u7570\u306a\u308b\u3002RGB\u3092\u30d9\u30fc\u30b9\u306b\u7b97\u51fa\u3057\u305f\u5024\u3002\u307e\u3042\u3067\u3082\u4eca\u304b\u3089\u65b0\u898f\u3067\u66f8\u304f\u306a\u3089\u7a4d\u6975\u7684\u306b\u9078\u3076\u7406\u7531\u306f\u306a\u3044\u3067\u3059\u3002\uff08oklch\u304c\u307b\u307c\u4e0a\u4f4d\u4e92\u63db\u306e\u305f\u3081\uff09<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>\/\/ \u8272\u76f8 0\u3001\u5f69\u5ea6 100%\u3001\u660e\u5ea6 50%\ncolor: hsl(0 100% 50%);<\/code><\/pre>\n\n\n\n<h2 class=\"wp-block-heading\">oklab<\/h2>\n\n\n\n<p>\u660e\u308b\u3055\uff08L\uff09\uff0b\u8272\u306e\u65b9\u5411\uff08a\/b\uff09\u3067\u8868\u73fe\uff08\u8272\u3092\u5206\u6790\u30fb\u8a08\u7b97\u3057\u3084\u3059\u3044\uff09<\/p>\n\n\n\n<p>\u3042\u3093\u307e\u4f7f\u308f\u306a\u3044\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">oklch<\/h2>\n\n\n\n<p>2020\u5e74\u4ee3\u306e\u524d\u534a\u306b\u767b\u5834\u3057\u305f\u3002\u8272\u76f8\u30fb\u5f69\u5ea6\u30fb\u660e\u5ea6\u3067\u6307\u5b9a\u3057\u307e\u3059\u3002\u300c\u4eba\u9593\u306e\u898b\u3048\u65b9\u306b\u8fd1\u3044\u300d\u3001\u30c7\u30b6\u30a4\u30f3\u30b7\u30b9\u30c6\u30e0\u3084\u30a2\u30af\u30bb\u30b7\u30d3\u30ea\u30c6\u30a3\u3068\u76f8\u6027\u304c\u826f\u3044\u3002hsl\u306e\u660e\u308b\u3055\u306f\u300c\u4eba\u9593\u306e\u8996\u899a\u7684\u306a\u660e\u308b\u3055\u306b\u8fd1\u3065\u304f\u3088\u3046\u306b\u8a2d\u8a08\u3055\u308c\u305f\u5024\u300d<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>\/\/ \u660e\u5ea6\uff08L = Lightness\uff09\uff1a60%\u3001\u5f69\u5ea6\uff08C = Chroma\uff09\uff1a0.2\u3001\u8272\u76f8\uff08H = Hue\uff09\uff1a30\u00b0\ncolor: oklch(60% 0.2 30);\n\n\/\/ RGB\u3060\u3068\u8272\u3092\u5909\u3048\u3066\u660e\u308b\u3055\u3092\u63c3\u3048\u308b\u306e\u304c\u96e3\u3057\u3044\u3002oklch\u3060\u3068\u7c21\u5358\u3002\n--red:    oklch(60% 0.2 30);\n--blue:   oklch(60% 0.2 260);\n--green:  oklch(60% 0.2 140);<\/code><\/pre>\n\n\n\n<p>UI\u306eprimary\u3001secondary\u306a\u3069\u3092\u4f5c\u308b\u306e\u306b\u4fbf\u5229\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u30b0\u30e9\u30c7\u30fc\u30b7\u30e7\u30f3\u306b\u5f37\u3044<\/h3>\n\n\n\n<pre class=\"wp-block-code\"><code>background: linear-gradient(\n  90deg,\n  oklch(60% 0.2 30),\n  oklch(60% 0.2 260)\n);<\/code><\/pre>\n\n\n\n<h2 class=\"wp-block-heading\">color-mix<\/h2>\n\n\n\n<p>2023\u5e745\u6708\u306b\u5b9f\u88c5\u3055\u308c\u3066\u30012026\u5e74\u306b\u3088\u3046\u3084\u304f\u63a1\u7528\u3055\u308c\u308b\u3088\u3046\u306b\u306a\u3063\u3066\u304d\u305f\u3002\u3082\u3057\u30c7\u30b6\u30a4\u30ca\u30fc\u4e0d\u5728\u3067\u3082photoshop\u3068\u304b\u3067\u660e\u5ea6\u5f69\u5ea6\u3068\u304b\u3044\u3058\u3063\u3066\u305f\u3088\u3046\u306b\u76f4\u611f\u7684\u306b\u8272\u8abf\u6574\u304c\u53ef\u80fd\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>.button {\n  background: color-mix(in oklch, blue 80%, white);\n}\n\n\/\/ \u6614\n--primary: #3366ff;\n--primary-hover: #2952cc;\n--primary-light: #668cff;\n\n\n\/\/ \u5c0e\u5165\u5f8c\u306f\u3053\u3093\u306a\u611f\u3058\u3067\u884c\u3051\u308b\u3002\n--primary: oklch(...);\n--primary-hover: color-mix(in oklch, var(--primary), black 15%);\n--primary-light: color-mix(in oklch, var(--primary), white 30%);<\/code><\/pre>\n\n\n\n<h2 class=\"wp-block-heading\">light-dark<\/h2>\n\n\n\n<p>OS\u306e\u30e9\u30a4\u30c8\/\u30c0\u30fc\u30af\u306e\u8a2d\u5b9a\u306b\u5408\u308f\u305b\u308bCSS\u3002OS\u306e\u30e2\u30fc\u30c9\u5207\u308a\u66ff\u3048\u306f2018\u5e74\u3054\u308d\u304b\u3089\u666e\u53ca\u3057\u3066\u3001\u3053\u306e\u30d7\u30ed\u30d1\u30c6\u30a3\u304c\u666e\u53ca\u3057\u305f\u306e\u306f2024\u5e74\u3054\u308d\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>:root {\n  color-scheme: light dark;\n\n  --bg: light-dark(white, black);\n  --text: light-dark(black, white);\n}<\/code><\/pre>\n\n\n\n<h2 class=\"wp-block-heading\">color-scheme<\/h2>\n\n\n\n<p>\u3053\u306eWeb\u30da\u30fc\u30b8\u306f\u30e9\u30a4\u30c8\uff0f\u30c0\u30fc\u30af\u306e\u3069\u306e\u914d\u8272\u306b\u5bfe\u5fdc\u3057\u3066\u3044\u307e\u3059\u3002\u3068\u3044\u3046\u3053\u3068\u3092OS\u306b\u4f1d\u3048\u308b\u3053\u3068\u304c\u3067\u304d\u308b\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>:root {\n  color-scheme: light dark;\n}<\/code><\/pre>\n\n\n\n<p>\u30d6\u30e9\u30a6\u30b6\u81ea\u8eab\u304c\u6301\u3063\u3066\u308bUI\u3092\u30c6\u30fc\u30de\u306b\u5408\u308f\u305b\u3066\u5909\u66f4\u4f9d\u983c\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u308b\u3002<\/p>\n\n\n\n<ul>\n<li>\u30b9\u30af\u30ed\u30fc\u30eb\u30d0\u30fc<\/li>\n\n\n\n<li>input<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">CSS\u5909\u6570\u5316<\/h2>\n\n\n\n<pre class=\"wp-block-code\"><code>:root {\n  --color-primary: #0066ff;\n  --color-text: #333;\n  --color-background: #fff;\n}\n\n.button {\n  background-color: var(--color-primary);\n  color: var(--color-background);\n}<\/code><\/pre>\n","protected":false},"excerpt":{"rendered":"\u30ab\u30e9\u30fc\u30ad\u30fc\u30ef\u30fc\u30c9 HEX(16\u9032\u6570) \u5b9a\u756a\u306e\u6307\u5b9a\u65b9\u6cd5 RGB \u900f\u660e\u5ea6\u3092\u6307\u5b9a\u3057\u305f\u3044\u5834\u5408\u306b\u4f7f\u3046\u3002\u900f\u660e\u5ea6\u306b\u95a2\u3057\u3066\u306f\u3001photoshop\u306e\u30a2\u30eb\u30d5\u30a1\u30c1\u30e3\u30f3\u30cd\u30eb\u306b\u8fd1\u3044\u6982\u5ff5\u3002opacity\u306b\u8fd1\u3044\u3051\u3069\u30ec\u30a4\u30e4\u30fc\u5168\u4f53\u306b\u6307\u5b9a\u305b\u305a\u3001\u80cc\u666f\u3068\u304b\u3060\u3051 [&hellip;]","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[1],"tags":[],"_links":{"self":[{"href":"http:\/\/www.code-magagine.com\/index.php?rest_route=\/wp\/v2\/posts\/28527"}],"collection":[{"href":"http:\/\/www.code-magagine.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/www.code-magagine.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/www.code-magagine.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/www.code-magagine.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=28527"}],"version-history":[{"count":30,"href":"http:\/\/www.code-magagine.com\/index.php?rest_route=\/wp\/v2\/posts\/28527\/revisions"}],"predecessor-version":[{"id":28594,"href":"http:\/\/www.code-magagine.com\/index.php?rest_route=\/wp\/v2\/posts\/28527\/revisions\/28594"}],"wp:attachment":[{"href":"http:\/\/www.code-magagine.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=28527"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/www.code-magagine.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=28527"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/www.code-magagine.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=28527"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}