col2hcl {scales}

Modify standard R colour in hcl colour space.

Description

Transforms rgb to hcl, sets non-missing arguments and then backtransforms to rgb.

Usage

col2hcl(colour, h = NULL, c = NULL, l = NULL, alpha = NULL)

Arguments

colour

character vector of colours to be modified

h

Hue, ⁠[0, 360]⁠

c

Chroma, ⁠[0, 100]⁠

l

Luminance, ⁠[0, 100]⁠

alpha

Alpha, ⁠[0, 1]⁠.

Examples

reds <- rep("red", 6)
show_col(col2hcl(reds, h = seq(0, 180, length = 6)))
show_col(col2hcl(reds, c = seq(0, 80, length = 6)))
show_col(col2hcl(reds, l = seq(0, 100, length = 6)))
show_col(col2hcl(reds, alpha = seq(0, 1, length = 6)))