在HTML里，颜色有两种表示方式。一种是用颜色名称表示，比如blue表示蓝色。另外一种是用16进制的数值表示RGB的颜色值。RGB是Red，Green，Blue意思，RGB每个原色的最小值是0，最大值是255，如果换算成16进制表示，就是(#00)，(#FF)。比如白色的RGB(255,255,255)，就用#FFFFFF表示；还有黑色的RGB(0,0,0)，就用#000000表示。 注：在W3C制定的HTML 4 .0标准中，只有16种颜色可以用颜色名称表示(aqua, black, blue, fuchsia, gray, green, lime, maroon , navy, olive, purple, red, silver, teal, white, and yellow)，其它的颜色都要用16进制RGB颜色值表示。
种不同的系统保留颜色。以下就是216种Web安全颜色：#这个符号。56种Web安全颜色呢？因为Microsoft和Mac操作系统有。
当然 ，现在的浏览器支持更多的颜色名称。不过为保险起见，建议你还是采用16进制RGB颜色值来表示颜色。并且在值前加上#这个符号。
为了方便大家找到合适的颜色 ，我们在这里列了一些颜色说明 ，以供大家参考 ，不妨作为一种速查工具 。
Web安全颜色以前，很多电脑显示器最多支持256色，因此出现了216种Web安全颜色 ，以保证网页的颜色能够正确显示。
以下就是216种Web安全颜色：000000表示。以保证网页的颜色能够正确显示。
那为什么不是256种Web安全颜色呢？因为Microsoft和Mac操作系统有40种不同的系统保留颜色。
green, lime, maroon, navy, olive!
以下就是216种Web安全颜色 ：
#000000#000033#000066#000099#0000cc#0000ff#003300#003333#003366#003399#0033cc#0033ff#006600#006633#006666#006699#0066cc#0066ff#009900#009933#009966#009999#0099cc#0099ff#00cc00#00cc33#00cc66#00cc99#00cccc#00ccff#00ff00#00ff33#00ff66#00ff99#00ffcc#00ffff#330000#330033#330066#330099#3300cc#3300ff#333300#333333#333366#333399#3333cc#3333ff#336600#336633#336666#336699#3366cc#3366ff#339900#339933#339966#339999#3399cc#3399ff#33cc00#33cc33#33cc66#33cc99#33cccc#33ccff#33ff00#33ff33#33ff66#33ff99#33ffcc#33ffff#660000#660033#660066#660099#6600cc#6600ff#663300#663333#663366#663399#6633cc#6633ff#666600#666633#666666#666699#6666cc#6666ff#669900#669933#669966#669999#6699cc#6699ff#66cc00#66cc33#66cc66#66cc99#66cccc#66ccff#66ff00#66ff33#66ff66#66ff99#66ffcc#66ffff#990000#990033#990066#990099#9900cc#9900ff#993300#993333#993366#993399#9933cc#9933ff#996600#996633#996666#996699#9966cc#9966ff#999900#999933#999966#999999#9999cc#9999ff#99cc00#99cc33#99cc66#99cc99#99cccc#99ccff#99ff00#99ff33#99ff66#99ff99#99ffcc#99ffff#cc0000#cc0033#cc0066#cc0099#cc00cc#cc00ff#cc3300#cc3333#cc3366#cc3399#cc33cc#cc33ff#cc6600#cc6633#cc6666#cc6699#cc66cc#cc66ff#cc9900#cc9933#cc9966#cc9999#cc99cc#cc99ff#cccc00#cccc33#cccc66#cccc99#cccccc#ccccff#ccff00#ccff33#ccff66#ccff99#ccffcc#ccffff#ff0000#ff0033#ff0066#ff0099#ff00cc#ff00ff#ff3300#ff3333#ff3366#ff3399#ff33cc#ff33ff#ff6600#ff6633#ff6666#ff6699#ff66cc#ff66ff#ff9900#ff9933#ff9966#ff9999#ff99cc#ff99ff#ffcc00#ffcc33#ffcc66#ffcc99#ffcccc#ffccff#ffff00#ffff33#ffff66#ffff99#ffffcc#ffffff微软支持的颜色名称下面是微软IE4.0以上都支持的颜色名称：
aliceblue
(#f0f8ff)antiquewhite
(#faebd7)aqua
(#00ffff)aquamarine
(#7fffd4)azure
(#f0ffff)beige
(#f5f5dc)bisque
(#ffe4c4)black
(#000000)blanchedalmond
(#ffebcd)blue
(#0000ff)blueviolet
(#8a2be2)brown
(#a52a2a)burlywood
(#deb887)cadetblue
(#5f9ea0)chartreuse
(#7fff00)chocolate
(#d2691e)coral
(#ff7f50)cornflowerblue
(#6495ed)cornsilk
(#fff8dc )crimson
(#dc143c)cyan
(#00ffff)darkblue
(#00008b)darkcyan
(#008b8b)darkgoldenrod
(#b8860b )darkgray
(#a9a9a9)darkgreen
(#006400)darkkhaki
(#bdb76b)darkmagenta
(#8b008b)darkolivegreen
(#556b2f)darkorange
(#ff8c00)darkorchid
(#9932cc)darkred
(#8b0000)darksalmon
(#e9967a)darkseagreen
(#8fbc8b)darkslateblue
(#483d8b)darkslategray
(#2f4f4f )darkturquoise
(#00ced1)darkviolet
(#9400d3)deeppink
(#ff1493)deepskyblue
(#00bfff)dimgray
(#696969)dodgerblue
(#1e90ff)firebrick
(#b22222 )floralwhite
(#fffaf0)forestgreen
(#228b22)fuchsia
(#ff00ff)gainsboro
(#dcdcdc)ghostwhite
(#f8f8ff)gold
(#ffd700)goldenrod
(#daa520 )gray
(#808080)green
(#008000)greenyellow
(#adff2f)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)lightgreen
(#90ee90)lightgrey
(#d3d3d3)lightpink
(#ffb6c1)lightsalmon
(#ffa07a)lightseagreen
(#20b2aa)lightskyblue
(#87cefa)lightslategray
(#778899 )lightsteelblue
(#b0c4de)lightyellow
(#ffffe0)lime
(#00ff00)limegreen
(#32cd32)linen
(#faf0e6)magenta
(#ff00ff)maroon
(#800000)mediumaquamarine
(#66cdaa)mediumblue
(#0000cd)mediumorchid
(#ba55d3)mediumpurple
(#9370db)mediumseagreen
(#3cb371)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)peachpuff
(#ffdab9 )peru
(#cd853f)pink
(#ffc0cb)plum
(#dda0dd)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)snow
(#fffafa )springgreen
(#00ff7f)steelblue
(#4682b4)tan
(#d2b48c )teal
(#008080)thistle
(#d8bfd8)tomato
(#ff6347)turquoise
(#40e0d0)violet
(#ee82ee)wheat
(#f5deb3)white
(#ffffff)whitesmoke
(#f5f5f5)yellow
(#ffff00)yellowgreen
(#9acd32)
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