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What you can practice
The game includes Character Tone, Brand Tone, and Flag Tone rounds. Each library page lets you choose a familiar subject, play the matching round, and review the HEX, RGB, HSB, and HSL values used by the game.
Toon Tone is designed as a memory and perception challenge. It is not an official brand-standard database, national specification, or replacement for an original design source. Brand names, character names, artwork, and other marks belong to their respective owners.
Why HSB?
Hue, saturation, and brightness make it easier to reason about a near miss. A guess can have the right general color family but still be too muted, too bright, or shifted toward a neighboring hue. The score and reference pages help you separate those differences instead of treating every miss as one undifferentiated error.