如何将字符串颜色转换为其十六进制代码或RGB值？ [英] How to convert a string color to its hex code or RGB value?

问题描述

我不知道是否可能，但我想创建一些函数，你传递一个字符串，如黄色或绿色，并返回其十六进制代码或十六进制代码的范围，绿色或黄色适合。

I am not sure if its possible but I would like to create some sort of function where you pass in a string such as "yellow" or "green" and it returns its hex code or the range of hex codes that greens or yellows fit into.

这在PHP可能吗？

感谢所有

推荐答案

我知道无法转换 HTML颜色名称或 CSS颜色名称转换为PHP中的Hex或RGB值。你必须创建一个知道名字的地图（见Wiki文章）。

There is no way to my knowledge to convert HTML color names or CSS color names to their Hex or RGB value in PHP. You'd have to create a map that knows the names (see Wiki article).

有人已经为你完成了这项工作：

Someone has done this work for you already:

• http://psoug.org/snippet/ CSS_Colornames_to_RGB_values_415.htm

• http://psoug.org/snippet/CSS_Colornames_to_RGB_values_415.htm

摘录：

$Colors  =  ARRAY( 
    "black"=>array( "red"=>0x00,  "green"=>0x00,  "blue"=>0x00), 
    "maroon"=>array( "red"=>0x80,  "green"=>0x00,  "blue"=>0x00), 
    // ...
    // more colors inbetween
    // ...
    "wheat"=>array( "red"=>0xF5,  "green"=>0xDE,  "blue"=>0xB3), 
    "whitesmoke"=>array( "red"=>0xF5,  "green"=>0xF5,  "blue"=>0xF5), 
    "yellowgreen"=>array( "red"=>0x9A,  "green"=>0xCD,  "blue"=>0x32)
); 

，然后通过 $ maroon = $ Colors [ maroon'];

进一步参考：

• http://www.w3.org/TR/css3-color/#html4


• http：//www.crockford .com / wrrrld / color.html

• http://www.w3.org/TR/css3-color/#html4
• http://www.crockford.com/wrrrld/color.html

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