{"id":17624,"date":"2025-11-13T10:00:26","date_gmt":"2025-11-13T01:00:26","guid":{"rendered":"https:\/\/nxpg.net\/blog\/tech\/?p=17624"},"modified":"2025-11-28T15:35:08","modified_gmt":"2025-11-28T06:35:08","slug":"color-mix%e9%96%a2%e6%95%b0%e3%81%a7css%e5%a4%89%e6%95%b0%e3%81%a8rgba%e3%81%ae%e8%a1%a8%e7%8f%be%e3%82%92%e5%85%b1%e5%ad%98%e3%81%95%e3%81%9b%e3%82%88%e3%81%86%ef%bc%81","status":"publish","type":"post","link":"https:\/\/nxpg.net\/blog\/tech\/?p=17624","title":{"rendered":"color-mix()\u95a2\u6570\u3067CSS\u5909\u6570\u3068rgba()\u306e\u8868\u73fe\u3092\u5171\u5b58\u3055\u305b\u3088\u3046\uff01"},"content":{"rendered":"<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"960\" height=\"540\" src=\"https:\/\/nxpg.net\/blog\/tech\/wp-content\/uploads\/sites\/7\/thumbnail1128.png\" alt=\"color-mix()\u95a2\u6570\u3067CSS\u5909\u6570\u3068rgba()\u306e\u8868\u73fe\u3092\u5171\u5b58\u3055\u305b\u3088\u3046\uff01\" class=\"wp-image-17724\" srcset=\"https:\/\/nxpg.net\/blog\/tech\/wp-content\/uploads\/sites\/7\/thumbnail1128.png 960w, https:\/\/nxpg.net\/blog\/tech\/wp-content\/uploads\/sites\/7\/thumbnail1128-624x351.png 624w\" sizes=\"auto, (max-width: 960px) 100vw, 960px\" \/><\/figure>\n<\/div>\n\n\n<p><\/p>\n\n\n\n<p>\u3053\u3093\u306b\u3061\u306f\u30023\u5e74\u76ee\u306e\u30e6\u30fc\u30e4\u3067\u3059\u3002<\/p>\n\n\n\n<p>\u4eca\u56de\u306e\u30d6\u30ed\u30b0\u306f\u3001\u30b3\u30fc\u30c7\u30a3\u30f3\u30b0\u306b\u4fbf\u5229\u306aCSS\u5909\u6570\u306b\u3064\u3044\u3066\u306e\u304a\u8a71\u3067\u3059\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u9577\u3081\u306e\u524d\u7f6e\u304d<\/h2>\n\n\n\n<p>Adobe XD\u306e\u30b5\u30dd\u30fc\u30c8\u304c\u7d42\u4e86\u3057\u3066\u3082\u30461\u5e74\u304c\u7d4c\u3068\u3046\u3068\u3057\u3066\u3044\u307e\u3059\u306d\u3002\u5f0a\u793e\u3067\u3082\u30c7\u30b6\u30a4\u30f3\u30c4\u30fc\u30eb\u304cfigma\u306b\u79fb\u884c\u3057\u3066\u3001\u30b3\u30fc\u30c7\u30a3\u30f3\u30b0\u6642\u306b\u30b9\u30bf\u30a4\u30eb\u3084\u3089\u30c6\u30ad\u30b9\u30c8\u3084\u3089\u3092\u76f4\u63a5\u30b3\u30d4\u30fc\u3067\u304d\u308b\u4fbf\u5229\u3055\u306b\u7518\u3048\u5207\u3063\u3066\u3057\u307e\u3063\u3066\u3044\u308b\u306e\u3067\u3059\u304c\u3001\u3042\u308b\u3068\u304d\u554f\u984c\u304c\u767a\u751f\u3057\u3066\u3057\u307e\u3063\u305f\u306e\u3067\u3059\u3002<\/p>\n\n\n\n<p>\u3068\u3044\u3046\u306e\u3082\u3001\u8907\u6570\u30d1\u30bf\u30fc\u30f3\u304c\u3042\u308b\u30d1\u30fc\u30c4\u306e\u8272\u6307\u5b9a\u306bCSS\u5909\u6570\u3092\u4f7f\u3063\u3066\u3044\u305f\u306e\u3067\u3059\u304c\u3001\u80cc\u666f\u8272\u306b\u900f\u660e\u5ea6\u304c\u6307\u5b9a\u3055\u308c\u3066\u3044\u308b\u3051\u3069\u4e2d\u306b\u5225\u306e\u8981\u7d20\u304c\u5165\u308b\u304b\u3089opacity\u306f\u4f7f\u3048\u306a\u3044\u3001\u3068\u3044\u3063\u305f\u30d1\u30fc\u30c4\u3067Sass\u306ergba($color, $alpha)\u3092\u4f7f\u3063\u3066\u534a\u900f\u660e\u306a\u8272\u6307\u5b9a\u3092\u3057\u3088\u3046\u3068\u3057\u305f\u306e\u3067\u3059\u3002\u3068\u3053\u308d\u304c\u51fa\u529b\u3092\u898b\u308b\u3068\u8272\u304c\u51fa\u3066\u3044\u307e\u305b\u3093\u3067\u3057\u305f\u3002\u691c\u8a3c\u30c4\u30fc\u30eb\u3067\u898b\u308b\u3068\u3001<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>background-color: rgba(#ddd, 0.7);<\/code><\/pre>\n\n\n\n<p>\u3068\u306a\u3063\u3066\u3044\u307e\u3057\u305f\uff08\u6570\u5024\u306f\u4eee\u306b\u8272\u3092#ddd\u3001\u900f\u660e\u5ea6\u30920.7\u3068\u3057\u3066\u3044\u307e\u3059\u3002\uff09\u3002\u672c\u6765\u3067\u3042\u308c\u3070\u3001\u30b3\u30f3\u30d1\u30a4\u30eb\u6642\u306bHex\u5024\u304b\u3089rgb\u5024\u306b\u5909\u63db\u3055\u308c\u3066<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>background-color: rgba(221, 221, 221, 0.7);<\/code><\/pre>\n\n\n\n<p>\u3068\u306a\u3089\u306a\u3051\u308c\u3070\u306a\u308a\u307e\u305b\u3093\u3002\u3069\u3046\u3084\u3089CSS\u5909\u6570\u3067\u6307\u5b9a\u3057\u305f\u30ab\u30e9\u30fc\u30b3\u30fc\u30c9#ddd\u304c\u6587\u5b57\u5217\u3068\u3057\u3066\u51e6\u7406\u3055\u308c\u3066\u3057\u307e\u3063\u3066\u3044\u308b\u3088\u3046\u3067\u3059\u3002<\/p>\n\n\n\n<p>\u3053\u308c\u306f\u3001Sass\u95a2\u6570\u3068CSS\u5909\u6570\u306e\u8a55\u4fa1\u30bf\u30a4\u30df\u30f3\u30b0\u306e\u9055\u3044\u306b\u3088\u308b\u3082\u306e\u3067\u3059\u3002<br>Sass\u95a2\u6570\u306fCSS\u3078\u306e\u30b3\u30f3\u30d1\u30a4\u30eb\u524d\u306b\u5b9f\u884c\u3055\u308c\u307e\u3059\u304c\u3001CSS\u5909\u6570\u306f\u30b3\u30f3\u30d1\u30a4\u30eb\u5f8c\u3001\u30d6\u30e9\u30a6\u30b6\u4e0a\u3067\u8868\u793a\u3055\u308c\u308b\u30bf\u30a4\u30df\u30f3\u30b0\u3067\u5024\u304c\u8a55\u4fa1\u3055\u308c\u307e\u3059\u3002\u3064\u307e\u308a\u2026<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>\uff08scss\uff09background-color: rgba($color: var(--mainColor), $alpha: 0.7);\n\u2193\u30b3\u30f3\u30d1\u30a4\u30eb\n\uff08CSS\uff09background-color: rgba(var(--mainColor), 0.7);\n\u2193CSS\u5909\u6570\u306b\u5024\u3092\u4ee3\u5165\n\uff08\u30d6\u30e9\u30a6\u30b6\u4e0a\uff09background-color: rgba(#ddd, 0.7);<\/code><\/pre>\n\n\n\n<p>\u3068\u3044\u3046\u308f\u3051\u3067\u3059\u3002\u3067\u3059\u306e\u3067\u3001\u3069\u3093\u306a\u306b\u9811\u5f35\u3063\u3066\u3082Sass\u95a2\u6570\u306b\u30ab\u30e9\u30fc\u30b3\u30fc\u30c9\u306eCSS\u5909\u6570\u306f\u4f7f\u3048\u306a\u3044\u3001\u3068\u3044\u3046\u3053\u3068\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u3053\u308c\u3092\u56de\u907f\u3059\u308b\u306b\u306f\u3001Sass\u95a2\u6570\u3067\u306f\u306a\u3044\u65b9\u6cd5\u3067\u8a18\u8ff0\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u305f\u3068\u3048\u3070\u3001\u4e0a\u306b\u3082\u3042\u308bCSS\u306ergba()\u95a2\u6570\u3084\u3001\u8272\u76f8\uff08Hue\uff09\u3001\u5f69\u5ea6\uff08Saturation\uff09\u3001\u660e\u5ea6\uff08Lightness\uff09\u3092\u6307\u5b9a\u3059\u308bhsla()\u95a2\u6570\u304c\u6319\u3052\u3089\u308c\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u3057\u304b\u3057\u3001\u3053\u308c\u3089\u306f\u305d\u308c\u305e\u308c\u8272\u30923\u3064\u306e\u5024\u3067\u6c7a\u5b9a\u3059\u308b\u305f\u3081CSS\u5909\u6570\u30923\u3064\u306b\u5206\u3051\u308b\u3001\u306a\u3044\u30573\u3064\u307e\u3068\u3081\u3066\u6307\u5b9a\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002\u3067\u3059\u304c\u305b\u3063\u304b\u304fHex\u5024\u3067\u30b3\u30d4\u30fc\u3057\u3066\u304d\u305f\u8272\u3092\u6bce\u56dergb\u5024\u3084hsla\u8a18\u6cd5\u306b\u6539\u3081\u308b\u306e\u306f\u624b\u9593\u304c\u304b\u304b\u3063\u3066\u4ed5\u65b9\u306a\u3044\u3067\u3057\u3087\u3046\u3002<\/p>\n\n\n\n<p>\u305d\u3053\u3067\u3001\u4eca\u56de\u306e\u672c\u984c\u3067\u3042\u308bcolor-mix()\u95a2\u6570\u304c\u4f7f\u3048\u308b\u3068\u3044\u3046\u308f\u3051\u3067\u3059\uff01<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u672c\u984c<\/h2>\n\n\n\n<p>\u307e\u305a\u306fcolor-mix()\u95a2\u6570\u306b\u3064\u3044\u3066\u3002<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p>color-mix() \u95a2\u6570\u8a18\u6cd5\u306f 2 \u3064\u306e \u5024\u3092\u63a1\u308a\u3001\u6307\u5b9a\u3055\u308c\u305f\u8272\u7a7a\u9593\u306e\u6307\u5b9a\u3055\u308c\u305f\u91cf\u3067\u6df7\u5408\u3057\u305f\u7d50\u679c\u3092\u8fd4\u3057\u307e\u3059\u3002<\/p>\n<cite><a href=\"https:\/\/developer.mozilla.org\/ja\/docs\/Web\/CSS\/Reference\/Values\/color_value\/color-mix\" target=\"_blank\" rel=\"noopener\" title=\"\">https:\/\/developer.mozilla.org\/ja\/docs\/Web\/CSS\/Reference\/Values\/color_value\/color-mix<\/a><\/cite><\/blockquote>\n\n\n\n<p>\u7c21\u5358\u306b\u8a00\u3048\u3070\u30012\u3064\u306e\u8272\u3092\u6df7\u305c\u3066\u51fa\u529b\u3059\u308b\u3068\u3044\u3046\u3053\u3068\u3067\u3059\u3002<\/p>\n\n\n\n<p>\u8a18\u6cd5\u306f\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u306a\u3063\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>color-mix(method, color1&#091; p1], color2&#091; p2])<\/code><\/pre>\n\n\n\n<p>method\u306f\u8272\u88dc\u9593\u306b\u4f7f\u7528\u3059\u308b\u8272\u7a7a\u9593\u3092\u6307\u5b9a\u3057\u307e\u3059\u304c\u3001\u3053\u308c\u306f\u81ea\u52d5\u5165\u529b\u3067\u51fa\u3066\u304f\u308bsrgb\u3067\u554f\u984c\u306a\u3044\u3088\u3046\u3067\u3059\u3002<br>color1\u3068color2\u306f\u305d\u308c\u305e\u308c\u6df7\u5408\u3059\u308b\u8272\u3001p1\u3068p2\u306f\u305d\u308c\u305e\u308c\u306ecolor\u306e\u30d1\u30fc\u30bb\u30f3\u30c6\u30fc\u30b8\u3067\u3059\u3002<\/p>\n\n\n\n<p>\u8a73\u7d30\u306a\u89e3\u8aac\u306fMDN\u306e\u30da\u30fc\u30b8\u3092\u3054\u89a7\u304f\u3060\u3055\u3044\u3002<\/p>\n\n\n\n<p><a href=\"https:\/\/developer.mozilla.org\/ja\/docs\/Web\/CSS\/Reference\/Values\/color_value\/color-mix\">https:\/\/developer.mozilla.org\/ja\/docs\/Web\/CSS\/Reference\/Values\/color_value\/color-mix<\/a><\/p>\n\n\n\n<p>\u4eca\u56de\u51fa\u529b\u3057\u305f\u3044&#8211;mainColor: #ddd;\u3001opacity: 0.7;\u3092\u5f53\u3066\u306f\u3081\u308b\u3068\u3001<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>background-color: color-mix(in srgb, var(--mainColor) 70%, transparent);<\/code><\/pre>\n\n\n\n<p>\u3068\u306a\u308a\u307e\u3059\u3002p1\u30fbp2\u306f\u7247\u65b9\u3092\u7701\u7565\u3057\u305f\u5834\u5408\u306f100%\u304b\u3089\u3082\u3046\u7247\u65b9\u3092\u5f15\u3044\u305f\u5024\u304c\u5272\u308a\u632f\u3089\u308c\u308b\u306e\u3067transparent\u5074\u306e\u900f\u660e\u5ea6\u3092\u6307\u5b9a\u3059\u308b\u5fc5\u8981\u306f\u3042\u308a\u307e\u305b\u3093\u3002<\/p>\n\n\n\n<p>\u5b9f\u969b\u306b\u6307\u5b9a\u3057\u305f\u30b5\u30f3\u30d7\u30eb\u304c\u3053\u3061\u3089\u3067\u3059\u3002<\/p>\n\n\n\n<p class=\"codepen\" data-height=\"300\" data-default-tab=\"html,result\" data-slug-hash=\"qEZEQeq\" data-pen-title=\"color-mix()\" data-user=\"elmhgegi-the-solid\" style=\"height: 300px;align-items: center;justify-content: center;border: 2px solid;margin: 1em 0;padding: 1em\">\n      <span>See the Pen <a href=\"https:\/\/codepen.io\/elmhgegi-the-solid\/pen\/qEZEQeq\">\n  color-mix()<\/a> by NP-Kanbara (<a href=\"https:\/\/codepen.io\/elmhgegi-the-solid\">@elmhgegi-the-solid<\/a>)\n  on <a href=\"https:\/\/codepen.io\">CodePen<\/a>.<\/span>\n<\/p>\n<script async src=\"https:\/\/public.codepenassets.com\/embed\/index.js\"><\/script>\n\n\n\n<p>CSS\u5909\u6570\u3068color-mix()\u3067\u6307\u5b9a\u3057\u305f\u5834\u5408\u3068\u3001Sass\u95a2\u6570rgba()\u3067\u6307\u5b9a\u3057\u305f\u5834\u5408\u3067\u540c\u3058\u7d50\u679c\u3092\u5f97\u3089\u308c\u3066\u3044\u308b\u3053\u3068\u304c\u308f\u304b\u308a\u307e\u3059\u306d\uff01<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u304a\u308f\u308a\u306b<\/h2>\n\n\n\n<p>CSS\u5909\u6570\u306f\u53d6\u308a\u56de\u3057\u306e\u826f\u3055\u304c\u9b45\u529b\u306a\u306e\u3067\u3001\u3053\u3046\u3057\u3066\u69d8\u3005\u306a\u30d1\u30bf\u30fc\u30f3\u306b\u5bfe\u5fdc\u3067\u304d\u308b\u3068\u5b09\u3057\u3044\u3067\u3059\u306d\uff01<\/p>\n\n\n\n<p>\u3067\u306f\u307e\u305f\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>CSS\u5909\u6570\u3068\u900f\u660e\u5ea6\u6307\u5b9a\u3092\u5171\u5b58\u3055\u305b\u305f\u3044\u3068\u304d\u306b\u4fbf\u5229\u306acolor-mix()\u95a2\u6570\u3002Sass\u306ergba($color, $alpha)\u306e\u4ee3\u66ff\u3068\u3057\u3066\u4f7f\u3048\u308b\u5b9f\u7528\u30c6\u30af\u30cb\u30c3\u30af\u3092\u89e3\u8aac\u3002<\/p>\n","protected":false},"author":56,"featured_media":17724,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_exactmetrics_skip_tracking":false,"_exactmetrics_sitenote_active":false,"_exactmetrics_sitenote_note":"","_exactmetrics_sitenote_category":0,"footnotes":""},"categories":[6],"tags":[174],"class_list":["post-17624","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-html","tag-css"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/nxpg.net\/blog\/tech\/index.php?rest_route=\/wp\/v2\/posts\/17624","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/nxpg.net\/blog\/tech\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/nxpg.net\/blog\/tech\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/nxpg.net\/blog\/tech\/index.php?rest_route=\/wp\/v2\/users\/56"}],"replies":[{"embeddable":true,"href":"https:\/\/nxpg.net\/blog\/tech\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=17624"}],"version-history":[{"count":3,"href":"https:\/\/nxpg.net\/blog\/tech\/index.php?rest_route=\/wp\/v2\/posts\/17624\/revisions"}],"predecessor-version":[{"id":17727,"href":"https:\/\/nxpg.net\/blog\/tech\/index.php?rest_route=\/wp\/v2\/posts\/17624\/revisions\/17727"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/nxpg.net\/blog\/tech\/index.php?rest_route=\/wp\/v2\/media\/17724"}],"wp:attachment":[{"href":"https:\/\/nxpg.net\/blog\/tech\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=17624"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/nxpg.net\/blog\/tech\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=17624"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/nxpg.net\/blog\/tech\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=17624"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}