Binary package “python3-webcolors” in ubuntu oracular

python3 library of color names and value formats

 For python3, support is included for the following formats, but this support
 RGB colorspace only.
  * Specification-defined color names
  * Six-digit hexadecimal
  * Three-digit hexadecimal
  * Integer rgb() triplet
  * Percentage rgb() triplet
 This module conversion to/from HSL can be handled by the "colorsys" module in
 the Python standard library.