Technically speaking, we're dealing with color systems, not spaces. But since this is a hex-driven project, I couldn't pass up such a great name. 🚀
Convert colours between spaces (hex, RGB, HSL, OKLab, OKLch) and generate modern ready-to-paste CSS syntax.
# install.packages("pak")
pak::pak("iamyannc/colourspace")Anyone doing awesome Shiny apps or Quarto dashboards that wants to spice things up with better colors, or any UI/UX/Web professional that wants to convert from one colour space to another, or produce a modern CSS syntax programmatically for any color out there. 🎨
library(colourspace)
# Convert hex to RGB
hex_to_rgb("#ff5733")
#> r g b
#> 255 87 51
# Get modern CSS output (oklch is the default)
to_css("#ff5733")
#> [1] "oklch(67.267% 0.208 37.377 / 1)"
# With transparency
to_css(c("coral", "teal"), alpha = 0.8)
#> [1] "oklch(72.556% 0.159 40.856 / 0.8)" "oklch(54.305% 0.098 194.764 / 0.8)"
# Reverse lookup: hex to colour name
hex_to_name("#c93f38")
#> [1] "100 Mph"
# Fallback to nearest named colour (default behaviour)
hex_to_name("#a1b2c3")
#> Warning: Fallback to nearest lab name for 1 colour(s).
#> [1] "Cadet Grey"
# Disable fallback to get NA for unknown colours
hex_to_name("#a1b2c3", fallback = FALSE)
#> [1] NA
# Low level function (great usecase for applying different spaces!)
convert_colourspace(value = "f", from = "hex", to = "name")
[1] "White"| Space | Description |
|---|---|
hex |
#rrggbb or #rrggbbaa |
rgb |
Red, Green, Blue (0–255) |
hsl |
Hue (0–360), Saturation, Lightness (0–100) |
oklab |
Perceptually uniform Lab (L: 0–1, a/b: ±0.4) |
oklch |
Polar OKLab (L: 0–1, Chroma ≥0, Hue: 0–360) |
name |
Colour name from 31k+ database |
USE IT AS YOU PLEASE
- This package was inspired by Antti Rask's col2hex2col.
- both data files were adjusted from Antti's prior implementation. Thanks!
- All the heavy lifting of matching color names to hex codes was handled by David Aerne in the meodai/color-names project.