To cite package ‘col2hex2col’ in publications use:

  Rask A (2026). _col2hex2col: Convert Between Color Names and Hex
  Codes_. R package version 0.5.3,
  <https://github.com/anttirask/col2hex2col>.

A BibTeX entry for LaTeX users is

  @Manual{,
    title = {col2hex2col: Convert Between Color Names and Hex Codes},
    author = {Antti Rask},
    year = {2026},
    note = {R package version 0.5.3},
    url = {https://github.com/anttirask/col2hex2col},
  }