To cite viridis/viridisLite in publications use:

Garnier, Simon, Ross, Noam, Rudis, Robert, Camargo, Pedro A, Sciaini, Marco, Scherer, Cédric (2021). viridis - Colorblind-Friendly Color Maps for R. doi: 10.5281/zenodo.4679424, R package version 0.6.1, https://sjmgarnier.github.io/viridis/.

Corresponding BibTeX entry:

  @Manual{,
    title = {{viridis} - Colorblind-Friendly Color Maps for R},
    author = {{Garnier} and {Simon} and {Ross} and {Noam} and {Rudis}
      and {Robert} and {Camargo} and Antônio Pedro and {Sciaini} and
      {Marco} and {Scherer} and {Cédric}},
    year = {2021},
    note = {R package version 0.6.1},
    url = {https://sjmgarnier.github.io/viridis/},
    doi = {10.5281/zenodo.4679424},
    doi = {10.5281/zenodo.4679424},
  }