To cite package ‘colorinfo’ in publications use:

  Uryu S (2024). _colorinfo: Color Code and Specification Information_.
  R package version 0.0.0.9000, <https://github.com/uribo/colorinfo>.

A BibTeX entry for LaTeX users is

  @Manual{,
    title = {colorinfo: Color Code and Specification Information},
    author = {Shinya Uryu},
    year = {2024},
    note = {R package version 0.0.0.9000},
    url = {https://github.com/uribo/colorinfo},
  }