The R package dichromat provides:
Simulation of the effects of color blindness via function
dichromat() for two types of red-green color blindness
(type = "deutan" or "protan") and green-blue
color blindness (type = "tritan").
Data dalton from the work of Françoise Viénot and
co-authors, underlying the dichromat() function. It
provides a 256-color palette as it would appear with normal, protanope,
deuteranope, and tritanope vision.
A colorschemes list containing 17 color vectors
suitable for people with deficient or anomalous red-green
vision.
⚠️ Important note: The R package colorspace provides better functions for simulating color vision deficiency: simulate_cvd(), deutan(), protan(), tritan(). More modern robust color palettes are available in hcl.colors() and palette.colors() in base R as well as further tools in colorspace.
The stable version of dichromat is available on CRAN:
install.packages("dichromat")The latest development version can be installed from R-universe:
install.packages("dichromat", repos = "https://zeileis.R-universe.dev")The package is available under the General Public License version 2.