Okabe and Ito's Discrete Color Scheme for ggplot2 and ggraph

Provides the qualitative color scale from Okabe and Ito 2008.

Usage

scale_colour_okabeito(..., reverse = FALSE, aesthetics = "colour")

scale_color_okabeito(..., reverse = FALSE, aesthetics = "colour")

scale_fill_okabeito(..., reverse = FALSE, aesthetics = "fill")

scale_edge_colour_okabeito(..., reverse = FALSE, aesthetics = "edge_colour")

scale_edge_color_okabeito(..., reverse = FALSE, aesthetics = "edge_colour")

scale_edge_fill_okabeito(..., reverse = FALSE, aesthetics = "edge_fill")

Arguments

...

Arguments passed to ggplot2::discrete_scale().

reverse

A logical scalar. Should the resulting vector of colors be reversed?

aesthetics

A character string or vector of character strings listing the name(s) of the aesthetic(s) that this scale works with.

Value

A discrete scale.

Details

This qualitative color scheme is used as given (no interpolation): colors are picked up to the maximum number of supported values (8).

References

Okabe, M. & Ito, K. (2008). Color Universal Design (CUD): How to Make Figures and Presentations That Are Friendly to Colorblind People. URL: https://jfly.uni-koeln.de/color/.

See also

Other colour-blind safe colour schemes: scale_crameri_cyclic, scale_crameri_diverging, scale_crameri_mutlisequential, scale_crameri_sequential, scale_tol_discrete, scale_tol_diverging, scale_tol_sequential

Other qualitative colour schemes: scale_colour_land(), scale_colour_soil(), scale_colour_stratigraphy(), scale_logical_discrete, scale_tol_bright, scale_tol_dark, scale_tol_highcontrast, scale_tol_light, scale_tol_mediumcontrast, scale_tol_muted, scale_tol_pale, scale_tol_vibrant

Author

N. Frerebeau

Examples

library(ggplot2)

ggplot2::ggplot(mpg, ggplot2::aes(displ, hwy, colour = class)) +
  ggplot2::geom_point() +
  scale_colour_okabeito()