Contrast Recognition Game
Find the text panel with stronger contrast between letter and background.
Play Contrast Recognition Game
Choose which of two displayed samples has better relative WCAG luminance contrast.
How to play Contrast Recognition Game
Choose which of two displayed samples has better relative WCAG luminance contrast.
How results are calculated
Correct contrast comparisons across eight rounds.
Accuracy, limitations and fair comparisons
This uses calculated relative luminance, not a vision diagnosis. The challenge runs in your current browser session; compare repeated attempts on the same device for a more useful personal reference.
Questions and answers
Is Contrast Recognition Game free?
Yes. This activity is free and does not require registration.
Does this test upload my input or score?
No. Gameplay and optional history storage run in your browser on this device; exporting a result requires your own action.
What is the measured result?
Correct contrast comparisons across eight rounds.
Can the result be treated as a medical or hardware diagnosis?
No. This uses calculated relative luminance, not a vision diagnosis.
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