To cite package ‘colorfast’ in publications use:

Cheng M (2025). colorfast: Fast Conversion of R Colors to Color Component Values and Native Packed Integer Format. R package version 1.0.1.9000, https://github.com/coolbutuseless/colorfast.

Corresponding BibTeX entry:

  @Manual{,
    title = {colorfast: Fast Conversion of R Colors to Color Component
      Values and Native Packed Integer Format},
    author = {Mike Cheng},
    year = {2025},
    note = {R package version 1.0.1.9000},
    url = {https://github.com/coolbutuseless/colorfast},
  }