best_contrast() finds the color in y with the highest contrast to the
color x.
Usage
best_contrast(x, y = c("#010101", "#FFFFFF"))
Arguments
- x
A vector of colors as described in col of color(). Must not
contain any NA.
- y
A vector of colors as described in col of color(). Must not
contain any NA.
Value
A vector of the same length as x with, for each element of x, the
element of y that has the highest contrast to x.
Examples
best_contrast("red")
#> [1] "#010101"
best_contrast("grey20")
#> [1] "#FFFFFF"
best_contrast("white")
#> [1] "#010101"
best_contrast(rainbow(10), rainbow(3))
#> [1] "#00FF00" "#0000FF" "#0000FF" "#0000FF" "#0000FF" "#0000FF" "#00FF00"
#> [8] "#00FF00" "#00FF00" "#00FF00"
