Package: palettecore Title: Derive, Optimise and Audit a Scientific Colour Palette from One Seed Colour Version: 0.4.1 Authors@R: person("Heidi Helena", "Andersén", role = c("aut", "cre"), email = "andersenheidihelena@gmail.com", comment = c(ORCID = "0000-0001-5923-5865")) Description: 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) ; the design rationale follows Crameri, Shephard and Heron (2020) . 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. License: Apache License (>= 2) Encoding: UTF-8 Roxygen: list(markdown = TRUE) RoxygenNote: 7.3.3 Depends: R (>= 4.1) Imports: stats, utils Suggests: ggplot2, jsonlite URL: https://github.com/heidihelena/palettecore BugReports: https://github.com/heidihelena/palettecore/issues Repository: https://heidihelena.r-universe.dev Date/Publication: 2026-08-05 11:08:29 UTC RemoteUrl: https://github.com/heidihelena/palettecore RemoteRef: HEAD RemoteSha: e88898ef8950221c7e93aa5a78922365deb0c484 RemoteSubdir: r/palettecore NeedsCompilation: no Packaged: 2026-11-03 10:41:36 UTC; root Author: Heidi Helena Andersén [aut, cre] (ORCID: ) Maintainer: Heidi Helena Andersén