Color scoring
How we score color memory
Solo and challenge targets are seed-generated pseudo-random HSB colors. Daily targets use date-based fixed palettes or date hash offsets, so the same seed gives the same colors.
Not a diagnosis The round score maps CIEDE2000 color difference onto a 0-10 assessment score with a reference-style product curve. Delta E is standardized; the 0-10 curve is not a CIE standard.
What the report uses
- Target HSB and RGB values.
- Your submitted HSB and RGB values.
- Color difference from CIE Lab and CIEDE2000 Delta E.
- Signed hue, saturation, and brightness errors.
- Local history only when the user allows local score storage.
Limits
Screen calibration, brightness, color profile, ambient light, and the user's display all affect results.