CSS 中的数据类型 <named-color>是指一组表示特定颜色的预定义颜色关键字。这些关键字是常见颜色的直观名称，提供了一种在 CSS 代码中指定颜色的便捷方法。您可以使用这些关键字来设置颜色，而不是使用 RGB 值或十六进制代码。
<named-color> 值可以在使用 <color> 的任何位置使用。
语法
color: red;
color: orange;
color: tan;
color: currentcolor;
color: transparent;
可能的值
命名颜色包括 standard colors、transparent 和 currentcolor
CSS <named-color> - 标准颜色
常见的标准颜色与简单、易于理解和令人难忘的名称相关联。以下是基本颜色、其 RGB 十六进制值和样本的列表：
| 关键词 | RGB 十六进制值 | 样 本 |
|---|---|---|
| black | #000000 | |
| silver | #c0c0c0 | |
| gray | #808080 | |
| white | #ffffff | |
| maroon | #800000 | |
| red | #ff0000 | |
| purple | #ff0000 | |
| fuchsia | #ff00ff | |
| green | #008000 | |
| lime | #00ff00 | |
| olive | #808000 | |
| yellow | #ffff00 | |
| navy | #000080 | |
| blue | #0000ff | |
| teal | #008080 | |
| aqua | #00ffff |
除了上面列出的 150 种颜色之外，实际上还有 16 多种颜色，如下所示，它们与特定关键字相关联。
| 关键词 | RGB 十六进制值 | 样 本 |
|---|---|---|
| aliceblue | #f0f8ff | |
| antiquewhite | #faebd7 | |
| aqua | #00ffff | |
| aquamarine | #7fffd4 | |
| azure | #f0ffff | |
| beige | #f5f5dc | |
| bisque | #ffe4c4 | |
| black | #000000 | |
| blanchedalmond | #ffebcd | |
| blue | #0000ff | |
| bluevoilet | #8a2be2 | |
| brown | #a52a2a | |
| burylwood | #deb887 | |
| cadetblue | #5f9ea0 | |
| chartreuse | #7fff00 | |
| chocolate | #d2691e | |
| aliceblue | #f0f8ff | |
| antiquewhite | #faebd7 | |
| aqua | #00ffff | |
| aquamarine | #7fffd4 | |
| azure | #f0ffff | |
| beige | #f5f5dc | |
| bisque | #ffe4c4 | |
| black | #000000 | |
| blanchedalmond | #ffebcd | |
| blue | #0000ff | |
| bluevoilet | #8a2be2 | |
| brown | #a52a2a | |
| burylwood | #deb887 | |
| cadetblue | #5f9ea0 | |
| chartreuse | #7fff00 | |
| chocolate | #d2691e | |
| coral | #ff7f50 | |
| cornflowerblue | #6495ed | |
| cornsilk | #fff8dc | |
| crimson | #dc143c | |
| cyan | #00ffff ( aqua 的同义词 ) | |
| darkblue | #00008b | |
| darkcyan | #008b8b | |
| darkgoldenrod | #b8860b | |
| darkgray | #a9a9a9 | |
| darkgreen | #006400 | |
| darkgrey | #a9a9a9 | |
| darkkhaki | #bdb76b | |
| darkmagenta | #8b008b | |
| darkolivegreen | #556b2f | |
| darkorange | #ff8c00 | |
| darkorchid | #9932cc | |
| darkred | #8b0000 | |
| darksalmon | #e9967a | |
| darkseagreen | #8fbc8f | |
| darkslateblue | #483d8b | |
| darkslategray | #2f4f4f | |
| darkslategrey | #2f4f4f | |
| darkturquoise | #00ced1 | |
| darkviolet | #9400d3 | |
| deeppink | #ff1493 | |
| deepskyblue | #00bfff | |
| dimgray | #696969 | |
| dimgrey | #696969 | |
| dodgerblue | #1e90ff | |
| firebrick | #b22222 | |
| floralwhite | #fffaf0 | |
| forestgreen | #228b22 | |
| fuchsia | #ff00ff | |
| gainsboro | #dcdcdc | |
| gold | #ffd700 | |
| goldenrod | #daa520 | |
| gray | #808080 | |
| green | #008000 | |
| greenyellow | #adff2f | |
| grey | #808080 ( gray 的同义词) | |
| honeydew | #f0fff0 | |
| hotpink | #ff69b4 | |
| indianred | #cd5c5c | |
| indigo | #4b0082 | |
| ivory | #fffff0 | |
| khaki | #f0e68c | |
| lavender | #e6e6fa | |
| lavenderblush | #fff0f5 | |
| lawngreen | #7cfc00 | |
| lemonchiffon | #fffacd | |
| lightblue | #add8e6 | |
| lightcoral | #f08080 | |
| lightcyan | #e0ffff | |
| lightgoldenrodyellow | #fafad2 | |
| lightgray | #d3d3d3 | |
| lightgreen | #90ee90 | |
| lightgrey | #d3d3d3 | |
| lightpink | #ffb6c1 | |
| lightsalmon | #ffa07a | |
| lightseagreen | #20b2aa | |
| lightskyblue | #87cefa | |
| lightslategray | #778899 | |
| lightslategrey | #778899 | |
| lightsteelblue | #b0c4de | |
| lightyellow | #ffffe0 | |
| lime | #00ff00 | |
| limegreen | #32cd32 | |
| linen | #faf0e6 | |
| magenta | #ff00ff ( fuchsia 的同义词) | |
| maroon | #800000 | |
| mediumaquamarine | #66cdaa | |
| mediumblue | #0000cd | |
| mediumorchid | #ba55d3 | |
| mediumpurple | #9370db | |
| mediumseagreen | #8a2be2 | |
| mediumslateblue | #7b68ee | |
| mediumspringgreen | #00fa9a | |
| mediumturquoise | #48d1cc | |
| mediumvioletred | #c71585 | |
| midnightblue | #191970 | |
| mintcream | #f5fffa | |
| mistyrose | #ffe4e1 | |
| moccasin | #ffe4b5 | |
| navajowhite | #ffdead | |
| navy | #000080 | |
| oldlace | #fdf5e6 | |
| olive | #808000 | |
| olivedrab | #6b8e23 | |
| orange | #ffa500 | |
| orangered | #ff4500 | |
| orchid | #da70d6 | |
| palegoldenrod | #eee8aa | |
| palegreen | #98fb98 | |
| paleturquoise | #afeeee | |
| palevioletred | #db7093 | |
| papayawhip | #ffefd5 | |
| peru | #cd853f | |
| pink | #ffc0cb | |
| cornsilk | #dda0dd | |
| plum | #dc143c | |
| powderblue | #b0e0e6 | |
| purple | #800080 | |
| red | #ff0000 | |
| rosybrown | #bc8f8f | |
| royalblue | #4169e1 | |
| saddlebrown | #8b4513 | |
| salmon | #fa8072 | |
| sandybrown | #f4a460 | |
| seagreen | #2e8b57 | |
| seashell | #fff5ee | |
| sienna | #a0522d | |
| silver | #c0c0c0 | |
| skyblue | #87ceeb | |
| slateblue | #6a5acd | |
| slategray | #708090 | |
| slategrey | #708090 | |
| snow | #fffafa | |
| springgreen | #00ff7f | |
| steelblue | #4682b4 | |
| tan | #d2b48c | |
| teal | #008080 | |
| thistle | #d8bfd8 | |
| tomato | #ff6347 | |
| transparent | 透明 | |
| turquoise | #40e0d0 | |
| violet | #ee82ee | |
| wheat | #f5deb3 | |
| white | #ffffff | |
| whitesmoke | #f5f5f5 | |
| yellowgreen | #9acd32 |
CSS <named-color> - transparent
- 在 CSS 中，术语 transparent 表示完全透明的颜色，并显示背景颜色。
- 它最初用作 rgba（0,0,0,0） 的快捷方式，但使用单独的计算来防止在处理渐变时出现意外结果。在较旧的浏览器中，它可能默认为黑色，没有不透明度。
- transparent 在 CSS 颜色级别 3 中被重新定义为一种有效的颜色，可用于颜色适合包含 Alpha 通道的任何场景。
许多关键字可以相互作为同义词：
- aqua / cyan
- fuchsia / magenta
- darkgray / darkgrey
- darkslategray / darkslategrey
- dimgray / dimgrey
- lightgray / lightgrey
- lightslategray / lightslategrey
- gray / grey
- slategray / slategrey
CSS <named-colors> - 基本示例
以下示例演示了 CSS <named-color>数据类型，其网格布局是一个较大的框，其中包含较小的框，每个框都填充了不同的命名颜色。
<html>
<head>
<style>
body {
display: flex;
justify-content: center;
align-items: center;
height: 100vh;
margin: 20;
}
.large-box {
width: 500px;
height: 500px;
border: 3px solid black;
display: grid;
grid-template-columns: repeat(3, 1fr);
grid-template-rows: repeat(4, 1fr);
gap: 10px;
padding: 15px;
}
.small-box {
width: 100%;
height: 100%;
border: 3px solid black;
}
.crimson-demo {
background-color: crimson;
}
.dodgerblue-demo {
background-color: dodgerblue;
}
.seagreen-demo {
background-color: seagreen;
}
.gold-demo {
background-color: gold;
}
.purple-demo {
background-color: purple;
}
.orange-demo {
background-color: orange;
}
.cyan-demo {
background-color: cyan;
}
.magenta-demo {
background-color: magenta;
}
.brown-demo {
background-color: brown;
}
.pink-demo {
background-color: pink;
}
.khaki-demo {
background-color: khaki;
}
.darksalmon-demo {
background-color: darksalmon;
}
</style>
</head>
<body>
<div class="large-box">
<div class="small-box crimson-demo"></div>
<div class="small-box dodgerblue-demo"></div>
<div class="small-box seagreen-demo"></div>
<div class="small-box gold-demo"></div>
<div class="small-box purple-demo"></div>
<div class="small-box orange-demo"></div>
<div class="small-box cyan-demo"></div>
<div class="small-box magenta-demo"></div>
<div class="small-box brown-demo"></div>
<div class="small-box pink-demo"></div>
<div class="small-box khaki-demo"></div>
<div class="small-box darksalmon-demo"></div>
</div>
</body>
</html>
