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如何设置背景色和前景色才能保证颜色不会混淆？

WBOY
Release： 2016-06-06 20:23:51
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大概是这样，我打算用php来生成一个带文字的图片，文字颜色随机，图片背景色随机，那么如果就这样随机生成的话，则有一定的可能性会出现文字颜色和背景颜色相似而难以辨别的情况，所以想问下有没有什么方法在确定了文字的颜色之后，就可以找到一个背景色保证这两个颜色放在一起一定不会混淆？

回复内容：

大概是这样，我打算用php来生成一个带文字的图片，文字颜色随机，图片背景色随机，那么如果就这样随机生成的话，则有一定的可能性会出现文字颜色和背景颜色相似而难以辨别的情况，所以想问下有没有什么方法在确定了文字的颜色之后，就可以找到一个背景色保证这两个颜色放在一起一定不会混淆？

最简单的就是在字的背景加黑色半透明50%以下..任何颜色组合都看的见.

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