To cite package ‘dichromat’ in publications use:

Lumley T (2022). dichromat: Color Schemes for Dichromats. R package version 2.0-0.1, https://CRAN.R-project.org/package=dichromat.

Corresponding BibTeX entry:

  @Manual{,
    title = {dichromat: Color Schemes for Dichromats},
    author = {Thomas Lumley},
    year = {2022},
    note = {R package version 2.0-0.1},
    url = {https://CRAN.R-project.org/package=dichromat},
  }