To cite package ‘palettes’ in publications use:

  McCarthy M (2024). _palettes: Methods for Colour Vectors and Colour
  Palettes_. R package version 0.2.1,
  <https://CRAN.R-project.org/package=palettes>.

A BibTeX entry for LaTeX users is

  @Manual{,
    title = {palettes: Methods for Colour Vectors and Colour Palettes},
    author = {Michael McCarthy},
    year = {2024},
    note = {R package version 0.2.1},
    url = {https://CRAN.R-project.org/package=palettes},
  }