Make a color more saturated

Make a color more saturated

Usage

clr_saturate(col, shift = 0.5)

Source

https://en.wikipedia.org/wiki/HSL_and_HSV

Arguments

col

A colors object (see color()) or a vector of any of the three kinds of R color specifications, i.e., either a color name (as listed by grDevices::colors()), a hexadecimal string (see col2rgb()), or a positive integer i meaning grDevices::palette()[i].

shift

A numeric between 0 and 1. 0 will do zero saturation, 1 will do complete saturation. Defaults to 0.5.

Value

A color object of the same length as col.

Details

The colors will be transformed to HSL color space (hue, saturation, lightness) where the saturation of the color will be modified. The saturation of a color takes a value between 0 and 1, with 0 being black and 1 being white. shift takes a value between 0 and 1, where 0 means that the saturation stays unchanged and 1 means completely saturated. As an example, if the saturation of the color is 0.6 and shift is 0.5, then the saturation will be set to the halfway point between 0.6 and 1 which is 0.8.

See also

clr_desaturate()

Examples

plot(clr_saturate(terrain.colors(10), shift = 0.5))


plot(clr_saturate(terrain.colors(10), shift = 1))


plot(clr_saturate(rep("firebrick", 11), shift = seq(0, 1, 0.1)))