我有一套用RBG和CMYK指定的颜色。我想在这些颜色中加入一定量的白色（百分比）。我如何根据可用的表示来执行此操作？有人能推荐一个可以帮助我进行这种颜色转换的包吗？
如果RGB值r、g和b介于0和255之间，并且希望将它们与x%白色混合，则可以计算
r = ((100 - x) * r + x * 255) / 100
g = ((100 - x) * g + x * 255) / 100
b = ((100 - x) * b + x * 255) / 100
如果你需要它的效率，有一些方法可以通过有效的位操作来做到这一点。
查找每个颜色通道的当前颜色和目标颜色之间的差异。计算一下你在差额中所占的百分比。把这个加到原来的值上，就完成了。
例如，将RGB（255127,0）与RGB（255255255）（白色）以75%混合，即可获得RGB（255223191）
您可以使用this lib，然后修改L组件并返回到您以前的表示，RGB或CMYK。
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