What is Toon Tone?

Toon Tone is a color-matching game that trains your eye using hue, saturation, and brightness (HSB) sliders. Each game consists of ten rounds where you adjust sliders to match a hidden target color. The system scores your guess using ΔE (color difference), a perceptual distance metric that aligns with human vision. No hex codes, no copy-paste—just your visual judgment.

Who it's for

• Designers who want to sharpen their color perception beyond hex values and eyedroppers
• Artists looking for a fun, repeatable way to practice matching hues, saturation, and brightness
• Color enthusiasts who enjoy gamified learning and want to understand how HSB and ΔE work in practice

Key features

Ten rounds per game with live HSB sliders

Each game presents ten unique target colors. You adjust hue (color angle), saturation (intensity), and brightness (lightness) using three sliders. The preview updates in real time, so you can see how your selection evolves before submitting.

ΔE-based scoring with a 1000-point maximum

After each guess, the system calculates the perceptual distance (ΔE) between your color and the target. You earn up to 100 points per round, with a perfect game reaching 1000 points. The scoring formula rewards close matches: points = round(max(0, 100 − 2 × ΔE)).

Comic-inspired color palettes for themed practice

Toon Tone includes curated palettes based on iconic comic characters—like Superman's red-blue-yellow, Batman's dark night yellow, Spider-Man's bright primaries, and more. These palettes serve as visual study sets, helping you explore HSB systems in a familiar, engaging context.

What stands out

"See with your eyes, not copy-paste — that's the true essence of color training."

The game deliberately hides hex values and target codes. You rely entirely on your visual perception and the HSB sliders. This forces genuine color learning rather than mechanical matching. The ΔE metric adds a scientific layer, giving you precise feedback on how close your eye actually got.

Worth checking out if…

You want a structured, no-cheat way to improve your color matching skills. Toon Tone is ideal for anyone who works with color daily—designers, illustrators, UI creators—or simply enjoys a well-designed game that teaches something real. The comic palettes add personality, and the ten-round format keeps sessions short enough to repeat daily.