{ "_id": "6ac77381de46216d5edd0139", "Package": "palettecore", "Title": "Derive, Optimise and Audit a Scientific Colour Palette from One\nSeed Colour", "Version": "0.4.1", "Authors@R": "person(\"Heidi Helena\", \"Andersén\", role = c(\"aut\", \"cre\"),\nemail = \"andersenheidihelena@gmail.com\",\ncomment = c(ORCID = \"0000-0001-5923-5865\"))", "Description": "Generates sequential, diverging and categorical colour\npalettes from a single seed colour in OKLCH (the cylindrical\nlightness-chroma-hue representation of the Oklab perceptual\ncolour space), with spacing measured by the CIEDE2000\ncolour-difference formula of the International Commission on\nIllumination. Audits every palette under simulated\ncolour-vision deficiency, greyscale conversion, the standard\nRed Green Blue (sRGB) gamut and Web Content Accessibility\nGuidelines (WCAG) contrast. Colour-vision deficiency is\nsimulated at severity 1.0 with the model of Machado, Oliveira\nand Fernandes (2009) ; the design\nrationale follows Crameri, Shephard and Heron (2020)\n. Mirrors the 'Python'\nreference implementation maintained in the same repository and\nis validated against shared parity fixtures. Thresholds are\nconfigurable design rules, not established accessibility\ncut-offs.", "License": "Apache License (>= 2)", "Encoding": "UTF-8", "RoxygenNote": "7.3.3", "URL": "https://github.com/heidihelena/palettecore", "BugReports": "https://github.com/heidihelena/palettecore/issues", "NeedsCompilation": "no", "Packaged": { "Date": "2026-10-08 10:39:35 UTC", "User": "root" }, "Author": "Heidi Helena Andersén [aut, cre] (ORCID:\n)", "Maintainer": "Heidi Helena Andersén ", "Repository": "https://cran.r-universe.dev", "Date/Publication": "2026-08-09 08:10:02 UTC", "RemoteUrl": "https://github.com/cran/palettecore", "RemoteRef": "HEAD", "RemoteSha": "217f754e1c98358de9d54ad62cfca7f8b4c7b78a", "_user": "cran", "_type": "src", "_file": "palettecore_0.4.1.tar.gz", "_fileid": "https://r2.ropensci.org/57fdab89f777356094f624609c378489065524b1ba22335cefaf313b2645aeb2", "_filesize": 109058, "_sha256": "57fdab89f777356094f624609c378489065524b1ba22335cefaf313b2645aeb2", "_expires": "2027-01-16T10:42:07.000Z", "_created": "2026-10-08T10:39:35.000Z", "_published": "2026-10-08T10:42:09.083Z", "_buildurl": "https://github.com/r-universe/cran/actions/runs/37764606424", "_status": "success", "_host": "GitHub-Actions", "_jobs": [ { "job": 113270204903, "time": 114, "config": "linux-devel-x86_64", "r": "4.7.0", "check": "OK", "artifact": "11544271557" }, { "job": 113270204864, "time": 109, "config": "linux-release-x86_64", "r": "4.6.1", "check": "OK", "artifact": "11544421385" }, { "job": 113269261616, "time": 154, "config": "source", "r": "4.6.1", "check": "OK", "artifact": "11543359672" }, { "job": 113270204813, "time": 81, "config": "wasm-release", "r": "4.6.0", "check": "OK", "artifact": "11543742412" }, { "job": 113270204886, "time": 62, "config": "windows-devel-x86_64", "r": "4.7.0", "check": "OK", "artifact": "11544615286" }, { "job": 113270204942, "time": 63, "config": "windows-release-x86_64", "r": "4.6.1", "check": "OK", "artifact": "11544121644" } ], "_upstream": "https://github.com/cran/palettecore", "_commit": { "id": "217f754e1c98358de9d54ad62cfca7f8b4c7b78a", "author": "Heidi Helena Andersén ", "committer": "cran-robot ", "message": "version 0.4.1\n", "time": 1786263002 }, "_maintainer": { "name": "Heidi Helena Andersén", "email": "andersenheidihelena@gmail.com", "orcid": "0000-0001-5923-5865" }, "_distro": "resolute", "_registered": true, "_dependencies": [ { "package": "R", "version": ">= 4.1", "role": "Depends" }, { "package": "stats", "role": "Imports" }, { "package": "utils", "role": "Imports" }, { "package": "ggplot2", "role": "Suggests" }, { "package": "jsonlite", "role": "Suggests" } ], "_owner": "cran", "_selfowned": false, "_usedby": 0, "_updates": [ { "week": "2026-32", "n": 1 } ], "_tags": [ { "name": "0.4.1", "date": "2026-08-09" } ], "_stars": 0, "_userbio": { "uuid": 6899542, "type": "organization", "name": "cran", "followers": 630, "description": "Unofficial read-only mirror of all CRAN R packages" }, "_downloads": { "count": 215, "source": "https://cranlogs.r-pkg.org/downloads/total/last-month/palettecore" }, "_devurl": "https://github.com/heidihelena/palettecore", "_searchresults": 3, "_rbuild": "4.6.1", "_assets": [ "extra/citation.cff", "extra/citation.html", "extra/citation.json", "extra/citation.txt", "extra/contents.json", "extra/manual.pdf", "extra/palettecore.html" ], "_realowner": "cran", "_cranurl": false, "_releases": [ { "version": "0.4.1", "date": "2026-08-09" } ], "_exports": [ "ciede2000", "contrast_ratio", "generate_palette", "hex_to_oklch", "hex_to_srgb", "max_chroma", "oklch_to_hex", "out_of_gamut_excursion", "scale_color_accessible", "scale_colour_accessible", "scale_fill_accessible", "simulate_cvd", "srgb_to_hex" ], "_help": [ { "page": "ciede2000", "title": "CIEDE2000 colour difference between two sRGB colours", "topics": [ "ciede2000" ] }, { "page": "contrast_ratio", "title": "WCAG 2.x contrast ratio between two sRGB colours", "topics": [ "contrast_ratio" ] }, { "page": "generate_palette", "title": "Generate an audited palette from one seed colour", "topics": [ "generate_palette" ] }, { "page": "hex_to_oklch", "title": "Convert a HEX colour to OKLCH", "topics": [ "hex_to_oklch" ] }, { "page": "hex_to_srgb", "title": "Convert a HEX colour to sRGB", "topics": [ "hex_to_srgb" ] }, { "page": "max_chroma", "title": "Largest OKLCH chroma at (L, H) inside the sRGB gamut", "topics": [ "max_chroma" ] }, { "page": "oklch_to_hex", "title": "Convert an OKLCH colour to HEX", "topics": [ "oklch_to_hex" ] }, { "page": "out_of_gamut_excursion", "title": "Pre-clamp gamut excursion of a CVD simulation", "topics": [ "out_of_gamut_excursion" ] }, { "page": "scale_colour_accessible", "title": "Discrete colour scale from an audited palettecore palette", "topics": [ "scale_color_accessible", "scale_colour_accessible" ] }, { "page": "scale_fill_accessible", "title": "Discrete fill scale from an audited palettecore palette", "topics": [ "scale_fill_accessible" ] }, { "page": "simulate_cvd", "title": "Simulate colour-vision deficiency (complete dichromacy)", "topics": [ "simulate_cvd" ] }, { "page": "srgb_to_hex", "title": "Convert an sRGB colour to HEX", "topics": [ "srgb_to_hex" ] } ], "_rundeps": [], "_score": 1, "_indexed": true, "_nocasepkg": "palettecore", "_universes": [ "cran", "heidihelena" ], "_binaries": [ { "r": "4.7.0", "os": "linux", "version": "0.4.1", "date": "2026-10-08T10:41:40.000Z", "distro": "resolute", "commit": "217f754e1c98358de9d54ad62cfca7f8b4c7b78a", "fileid": "https://r2.ropensci.org/d40711ad4a09fae0b5885bf09b4107dc1f172f4c61e859d39fa4aa4acc4ca9b2", "status": "success", "check": "OK", "buildurl": "https://github.com/r-universe/cran/actions/runs/37764606424" }, { "r": "4.6.1", "os": "linux", "version": "0.4.1", "date": "2026-10-08T10:41:32.000Z", "distro": "resolute", "commit": "217f754e1c98358de9d54ad62cfca7f8b4c7b78a", "fileid": "https://r2.ropensci.org/5a23efaee4e52b3e91e6bbbcf105a617021e389d84b7bc85e17cfc82e5482687", "status": "success", "check": "OK", "buildurl": "https://github.com/r-universe/cran/actions/runs/37764606424" }, { "r": "4.6.0", "os": "wasm", "version": "0.4.1", "date": "2026-10-08T10:41:13.000Z", "commit": "217f754e1c98358de9d54ad62cfca7f8b4c7b78a", "fileid": "https://r2.ropensci.org/c0e9d1ab64c9b90823139b62fdefe9dbba9b1e15222806ef3fc6ee3384371623", "status": "success", "buildurl": "https://github.com/r-universe/cran/actions/runs/37764606424" }, { "r": "4.7.0", "os": "win", "version": "0.4.1", "date": "2026-10-08T10:40:42.000Z", "commit": "217f754e1c98358de9d54ad62cfca7f8b4c7b78a", "fileid": "https://r2.ropensci.org/a70e82b74b44f70049c6015d4d51a3b114aa8c74313ab1534a308dcef88e318e", "status": "success", "check": "OK", "buildurl": "https://github.com/r-universe/cran/actions/runs/37764606424" }, { "r": "4.6.1", "os": "win", "version": "0.4.1", "date": "2026-10-08T10:40:40.000Z", "commit": "217f754e1c98358de9d54ad62cfca7f8b4c7b78a", "fileid": "https://r2.ropensci.org/d1f4f7f0aaf4db5461699de018da2b2426d4f5de8a4489faf08ead79300650f2", "status": "success", "check": "OK", "buildurl": "https://github.com/r-universe/cran/actions/runs/37764606424" } ] }