Color Discrimination Test — Find the Odd Color Out (ΔE Measured)
Find and tap the one square with a slightly different color
Smallest ΔE00 detected
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Accuracy by hue family
| Hue family | This run | All time | Min ΔE00 |
|---|
A feel for ΔE00 sizes (rough industry rules of thumb, not a standard)
- 5 or more — obvious at a glance
- 2 to 5 — visible when placed side by side
- 1 to 2 — visible only if you look carefully
- Under 1 — barely visible to a trained eye on a good screen under good conditions
This is not a medical diagnosis. It measures how well you tell similar colors apart on a screen and is not a substitute for a color vision deficiency screening.
Results depend on monitor calibration, brightness, night mode (blue light filters), ambient lighting and viewing angle. Only compare scores taken on the same device under the same conditions.