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# CITATION.cff file created with {cffr} R package
# See also: https://docs.ropensci.org/cffr/
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cff-version: 1.2.0
message: 'To cite package "palettecore" in publications use:'
type: software
license: Apache-2.0
title: 'palettecore: Derive, Optimise and Audit a Scientific Colour Palette from One
  Seed Colour'
version: 0.4.1
doi: 10.32614/CRAN.package.palettecore
abstract: Generates sequential, diverging and categorical colour palettes from a single
  seed colour in OKLCH (the cylindrical lightness-chroma-hue representation of the
  Oklab perceptual colour space), with spacing measured by the CIEDE2000 colour-difference
  formula of the International Commission on Illumination. Audits every palette under
  simulated colour-vision deficiency, greyscale conversion, the standard Red Green
  Blue (sRGB) gamut and Web Content Accessibility Guidelines (WCAG) contrast. Colour-vision
  deficiency is simulated at severity 1.0 with the model of Machado, Oliveira and
  Fernandes (2009) <https://doi.org/10.1109/TVCG.2009.113>; the design rationale follows
  Crameri, Shephard and Heron (2020) <https://doi.org/10.1038/s41467-020-19160-7>.
  Mirrors the 'Python' reference implementation maintained in the same repository
  and is validated against shared parity fixtures. Thresholds are configurable design
  rules, not established accessibility cut-offs.
authors:
- family-names: Andersén
  given-names: Heidi Helena
  email: andersenheidihelena@gmail.com
  orcid: https://orcid.org/0000-0001-5923-5865
repository: https://cran.r-universe.dev
repository-code: https://github.com/heidihelena/palettecore
commit: 217f754e1c98358de9d54ad62cfca7f8b4c7b78a
url: https://github.com/heidihelena/palettecore
date-released: '2026-08-09'
contact:
- family-names: Andersén
  given-names: Heidi Helena
  email: andersenheidihelena@gmail.com
  orcid: https://orcid.org/0000-0001-5923-5865