Colour Spaces

Leaving RGB: perceptual luminance, the hue wheel, and why a channel that wraps breaks ordinary arithmetic.

5 tasks

1. Three Greys, One Pixel
2. Hue, Saturation, Value
3. The Midpoint of 350° and 10°
4. Select by Colour
5. Payoff: What Colour Is This Picture?

Start this module →

This page is an interactive exercise — the editor, the GPU runner and your saved progress need JavaScript. The text above is the full brief.