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Color Blindness Test
HealthIshihara-style color blindness test with immediate results and diagnosis.
ttb run color-blindness-test
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How to Use Color Blindness Test
You'll see 10-15 colored dot circles (Ishihara style). Try to read the number hidden in each circle. Select your answer from the options below. At the end, you'll get a diagnosis and accuracy percentage.
1
Start the test
Click Start to begin the first color blindness plate.
2
See the pattern
Each image shows colored dots arranged to hide a number from color-blind viewers.
3
Select your answer
Click the number you see (or "Cannot see") from the options provided.
4
View results
After all plates, you'll see your diagnosis: Normal, Deuteranopia, Protanopia, or Tritanopia.
Frequently Asked Questions
What is color blindness?+
A genetic condition where the eye lacks certain color receptors. Red-green blindness is most common; blue-yellow is rare.
Can this diagnose me clinically?+
No, this is a screening tool. See an ophthalmologist for official diagnosis.
How accurate is it?+
The Ishihara test is ~77% accurate for red-green color blindness but less reliable for other types.
Can I retake it?+
Yes, click Restart to try again, but wait a day to avoid memorizing patterns.
I failed — what now?+
Visit an optometrist for a professional color vision test to confirm and discuss options like corrective lenses.
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