darker | R Documentation |
Given a color, return a darker one
darker(col, amount=150)
col |
(color) The original color. Might be specified as a color name or a "#RRGGBB(AA)" hex color definition. |
amount |
(integer, [0-255]) The fixed amount to subtract to each RGB channel (Defaults to 150). |
Very simple utility function to create darker colors. Given a color, it transforms it to rgb space, adds a set amount to all chanels and transforms it back to a color.
A darker color
lighter
darker("red")
darker("#333333")
darker(c("red", 3, "#FF00FF"))
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