颜色的两种指定方式──以颜色名称或者表示 RGB 颜色值的数字。一个 RGB 颜色值由三个两位十六进制数字组成，分别代表各自的颜色强度。
例如，颜色值 #FF0000 之所以被渲染为红色，是因为红色的值达到了最高值 FF (等于十进制的 255)。
当你使用 !DOCTYPE 声明指定为标准兼容模式时，Microsoft® Internet Explorer 6 和以后版本将忽略不遵从样式表(CSS)级别 1 的样式表声明。根据 CSS 1，以十六进制 RGB 值指定的颜色必须带有前导“#”字符。像“FFFFFF”这样的值将被忽略，而不会被理解为“#FFFFFF”(即白色)，但 Internet Explorer 的先前版本是这么理解的。这影响所有接受颜色值的属性。
注意 尽管这些颜色名称可能不被其它浏览器使用，但 RGB 颜色值应该可以在不同浏览器间正确显示。如果想要为跨越不同浏览器工作的 Web 页指定颜色值，那么应该使用 RGB 颜色值。
下表列出了 Internet Explorer 4.0 支持的颜色。
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) |
用户定义的系统颜色
Microsoft® Windows® 维护着一组用于绘制用户界面不同部分的系统颜色。除了定义在颜色表中的颜色，在 Internet Explorer 4.0 中也可正常显示以下系统颜色指定为颜色值的 Web 页。
用户可以使用 Windows 控制面板设置用于将来 Windows 会话的系统颜色。下表演示了定义在控制面板中的颜色名称的对应情况。
注意 不对应任何控制面板的颜色只可使用 Windows API 编程设置，用户无法定义。
| activeborder |
activecaption |
appworkspace |
background |
| buttonface |
buttonhighlight |
buttonshadow |
buttontext |
| captiontext |
graytext |
highlight |
highlighttext |
| inactiveborder |
inactivecaption |
inactivecaptiontext |
infobackground |
| infotext |
menu |
menutext |
scrollbar |
| threeddarkshadow |
threedface |
threedhighlight |
threedlightshadow |
| threedshadow |
window |
windowframe |
windowtext |