A single palette/colormap is shown (1) without any modifications (2) in black-and-white as if photocopied (3) as seen by deutan color-blind (4) as seen by protan color-blind (5) as seen by tritan color-blind

pal.safe(pal, n = 100, main = NULL)

## Arguments

pal A palette function or a vector of colors. The number of colors to display for palette functions. Title to display at the top of the test image

None.

## Details

Rates of colorblindness in women are low, but in men the rates are around 3 to 7 percent, depending on the race.

What to look for:

1. Are colors still unique when viewed in less-than full color?

2. Is a sequential colormap still sequential?

## References

Vischeck. http://www.vischeck.com/vischeck/

None

Kevin Wright

## Examples

pal.safe(glasbey)
#> Only 32 colors are available with 'glasbey'.pal.safe(rainbow, main="rainbow") # Really, really bad
pal.safe(cubicyf(100), main="cubicyf")
pal.safe(parula, main="parula")