khroma: Colour Schemes for Scientific Data Visualization
Color schemes ready for each type of data (qualitative, diverging or sequential), with colors that are distinct for all people, including color-blind readers. This package provides an implementation of Paul Tol (2018) and Fabio Crameri (2018) <doi:10.5194/gmd-11-2541-2018> color schemes for use with 'graphics' or 'ggplot2'. It provides tools to simulate color-blindness and to test how well the colors of any palette are identifiable. Several scientific thematic schemes (geologic timescale, land cover, FAO soils, etc.) are also implemented.
| Version: | 1.17.0 |
| Depends: | R (≥ 3.5.0) |
| Imports: | graphics, grDevices, grid, stats, utils |
| Suggests: | fontquiver, ggplot2, ggraph, knitr, markdown, rsvg, scales, spacesXYZ, svglite, tinysnapshot (≥ 0.2.0), tinytest |
| Published: | 2025-09-29 |
| DOI: | 10.32614/CRAN.package.khroma |
| Author: | Nicolas Frerebeau 
[aut, cre],
Brice Lebrun
[art] (Logo designer),
Vincent Arel-Bundock
[ctb],
Ulrik Stervbo
[ctb],
Université Bordeaux Montaigne 
[fnd],
CNRS [fnd] |
| Maintainer: | Nicolas Frerebeau <nicolas.frerebeau at u-bordeaux-montaigne.fr> |
| BugReports: | https://codeberg.org/tesselle/khroma/issues |
| License: | GPL (≥ 3) |
| URL: | https://codeberg.org/tesselle/khroma, https://packages.tesselle.org/khroma/, https://tesselle.r-universe.dev/khroma |
| NeedsCompilation: | no |
| Citation: | khroma citation info |
| Materials: | README, NEWS |
| CRAN checks: | khroma results |
Documentation:
| Reference manual: | khroma.html , khroma.pdf |
| Vignettes: |
Fabio Crameri's Color Schemes (source, R code) Introduction to khroma (source, R code) Paul Tol's Color Schemes (source, R code) |
Downloads:
| Package source: | khroma_1.17.0.tar.gz |
| Windows binaries: | r-devel: khroma_1.16.0.zip, r-release: khroma_1.16.0.zip, r-oldrel: khroma_1.16.0.zip |
| macOS binaries: | r-release (arm64): khroma_1.16.0.tgz, r-oldrel (arm64): khroma_1.16.0.tgz, r-release (x86_64): khroma_1.17.0.tgz, r-oldrel (x86_64): khroma_1.17.0.tgz |
| Old sources: | khroma archive |
Reverse dependencies:
| Reverse imports: | dimensio, kinesis, nexus, RLumCarlo, RLumModel, spatialGE, tabula, tesselle |
| Reverse suggests: | midr |
Linking:
Please use the canonical form https://CRAN.R-project.org/package=khroma to link to this page.