Crate ecolor

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Color conversions and types.

If you want a compact color representation, use Color32. If you want to manipulate RGBA colors use Rgba. If you want to manipulate colors in a way closer to how humans think about colors, use HsvaGamma.

Feature flags



  • An assert that is only active when epaint is compiled with the extra_asserts feature or with the extra_debug_asserts feature in debug builds.


  • This format is used for space-efficient color representation (32 bits).
  • Hue, saturation, value, alpha. All in the range [0, 1]. No premultiplied alpha.
  • Like Hsva but with the v value (brightness) being gamma corrected so that it is somewhat perceptually even.
  • 0-1 linear space RGBA color with premultiplied alpha.