Perceptually Uniform Colour

CIELAB colour space OKLab colour space

References

• https://en.wikipedia.org/wiki/List_of_color_spaces_and_their_uses

  • Perceptually linear means that a change of the same amount in a colour value should produce a change of about the same visual importance.

• https://en.wikipedia.org/wiki/Color_appearance_model

  • In 1976, the CIE set out to replace the many existing, incompatible colour difference models by a new, universal model for colour difference. They tried to achieve this goal by creating a perceptually uniform colour space (UCS).

• https://programmingdesignsystems.com/color/perceptually-uniform-color-spaces/

• OKLAB - https://bottosson.github.io/posts/oklab/

• https://observablehq.com/@mjbo/perceptually-uniform-color-models

• https://en.wikipedia.org/wiki/CIELAB_color_space

  • The CIELAB colour space, also referred to as L_a_b*, is a colour space defined by the International Commission on Illumination (abbreviated CIE) in 1976.
  • CIELAB was intended as a perceptually uniform space.

• Matplotlib https://bids.github.io/colormap/