PlotTools (version 0.4.0)

cbPalettes: Palettes compatible with colour blindness

Description

Colour palettes whose elements are chosen to be distinguishable by colour blind audiences.

Usage

cbPalette8
cbPalette12
cbPalette15
cbPalette24
altPalette8
altPalette12
altPalette15
altPalette24

Format

Named character vectors listing RGB values for each colour.

An object of class character of length 8.

An object of class character of length 12.

An object of class character of length 15.

An object of class character of length 24.

An object of class character of length 8.

An object of class character of length 12.

An object of class character of length 15.

An object of class character of length 24.

Details

Palettes are named according to the number of distinct colours they contain.

Each palette is arranged in three groups, intended to achieve perceptual luminance uniformity for deuteranopic viewers (see source for details), from dark to light.

For each cbPalette, an altPalette provides a hue selected from the many that are perceptually indistinguishable for deuteranopic viewers.

See Also

palette.colors(8) provides an eight-colour Okabe-Ito colour-blind palette.

Examples

par(mfrow = c(4, 1), mar = rep(1, 4))

data("cbPalette8")
plot.new()
plot.window(xlim = c(1, 8), ylim = c(-1, 1))
text(1:8, 1, col = cbPalette8)
points(1:8, rep(0, 8), bg = cbPalette8, col = altPalette8,
       pch = 22, cex = 2)

data("cbPalette12")
plot.new()
plot.window(xlim = c(1, 12), ylim = c(-1, 1))
text(1:12, 1, col = cbPalette12)
points(1:12, rep(0, 12), bg = cbPalette12, col = altPalette12,
       pch = 22, cex = 2)

data("cbPalette15")
plot.new()
plot.window(xlim = c(1, 15), ylim = c(-1, 1))
text(1:15, 1, col = cbPalette15)
points(1:15, rep(0, 15), bg = cbPalette15, col = altPalette15,
       pch = 22, cex = 2)

plot.new()
plot.window(xlim = c(1, 25), ylim = c(-1, 1))
text(1:24, 1, col = cbPalette24)
points(1:24, rep(0, 24), bg = cbPalette24, col = altPalette24,
       pch = 22, cex = 2)