Why HSB works for guessing
Hue chooses the color family, saturation controls intensity, and brightness controls lightness. That makes HSB easier for a memory game than red, green, and blue channels.
HSB color game
An HSB color game uses hue, saturation, and brightness instead of raw RGB values. Toon Tone uses HSB because it matches how people describe remembered colors.
Play Toon ToneHow to improve your score
Set hue first, reduce saturation more than you expect, then tune brightness. Many near misses are brightness errors, not wrong color families.