Name on the leaderboard (optional)
device …
Exposure time
Games are logged for the study: an anonymous device hash, the name you enter (if any), the colors shown, the colors you mixed, and timing. Nothing else. No account, no cookies beyond your own browser remembering your name.
Mode
Watch the stage
Hold the color in your head. The mixer unlocks when it disappears.
Every round starts at black. No eyedroppers here.
ΔE00 —
Average across seven rounds, CIEDE2000-scored.
Leaderboard
Best seven-round average per player, per mode. Names are self-reported; the ranking is not.
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| # | Player | Best avg | Games |
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Method & what gets logged
Scoring. Your mix and the target are converted from sRGB to CIELAB (D65) and compared with CIEDE2000, the CIE's perceptual color-difference formula. The round score is 100 − 2·ΔE00, clamped to 0–100. A ΔE of 1 is roughly the smallest difference a trained eye can see side by side; scores in the 90s mean you were within "most people couldn't tell" territory — from memory, starting at black.
Specimen mode. Each scene is grown, not drawn: three independent binary cellular automata (a 9-neighbor majority rule, four generations from random seeds) are combined into an eight-region label map, smoothed twice, and cel-shaded. One organically-shaped region is circled; its fill is your target. No two scenes repeat.
Complement mode. The target is the shown color's hue rotated exactly 180° in HSL, saturation and lightness held. You're scored against that computed complement, not the color you saw.
Logging. Each completed game records: an anonymous device hash (a one-way digest of browser characteristics — no cookie, no account), the optional first name, mode, exposure time, and for each round the shown color, the target, your mix, ΔE00, score, and how long you took to mix. The point is population patterns — which hues drift warm in memory, whether 2-second exposures decay differently than 6, how far off "the exact opposite" lands. Aggregates may show up later as a visual essay.