To cite khroma in publications use:

Frerebeau N (2021). khroma: Colour Schemes for Scientific Data Visualization. Université Bordeaux Montaigne, Pessac, France. R package version 1.7.0, https://doi.org/10.5281/zenodo.1472077.

Corresponding BibTeX entry:

  @Manual{,
    title = {khroma: Colour Schemes for Scientific Data Visualization},
    author = {Nicolas Frerebeau},
    year = {2021},
    organization = {Université Bordeaux Montaigne},
    address = {Pessac, France},
    note = {R package version 1.7.0},
    url = {https://doi.org/10.5281/zenodo.1472077},
  }