表单输入怎么怎么判断是否符合颜色代码

[syue]

比如输入如 #008800 和 red blue 为合法。
#00000s ssssss 为不合法。

[ib915]

不明白？？？
能具体说一下例子吗？

[bencalie]

<input type=text id=color1 value=#008800>
<button onclick="alert(/^#[0-9A-Fa-f]{6}$/.test(color1.value))">Test</button>

[bzscs]

IE4预命名色彩，做成数组判断一下
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) cornflower
(#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)
lightgray
(#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)

[syue]

谢谢楼上的几位，偶自己已经找到解决方法了！
i.title.style.cssText='color: ' + i.title_color2.value;
if (i.title.style.color=='') {
alert('错误的自定义颜色代码!');
}
用这种方法搞定！