To cite package ‘swatches’ in publications use:

  Rudis B (2022). _swatches: Read, Inspect, Manipulate, and Save Color
  Swatch Files_. R package version 0.6.0,
  <https://github.com/hrbrmstr/swatches>.

A BibTeX entry for LaTeX users is

  @Manual{,
    title = {swatches: Read, Inspect, Manipulate, and Save Color Swatch Files},
    author = {Bob Rudis},
    year = {2022},
    note = {R package version 0.6.0},
    url = {https://github.com/hrbrmstr/swatches},
  }