Color Vision Screening
COLOR
COLOR
VISION
TEST
8 Ishihara-style dot plates, drawn fresh on your screen each time. A digit hides in the dots — normal color vision reads it, red-green or blue-yellow deficiency sees a blank field. Tests both eyes. Results stay on your device.
Before you begin
Maximize screen brightness
Low brightness shifts perceived hue and reduces plate accuracy.
Normal indoor or diffuse light
Direct sunlight on screen or strong colored ambient light will skew results.
Remove tinted glasses or lenses
Prescription lenses are fine. Tinted, photochromic, or colored lenses are not.
Select which eye to test first
Right
Start here
Left
Or here
You will test both eyes — the other eye follows automatically. Cover the non-testing eye with your palm, not a lens.
← All free vision tests
Results
YOUR
← All free vision tests
YOUR
VISION
PROFILE
Right eye
—
Left eye
—
Results Disclaimer
This is a screening estimate, not a diagnosis. It counts how many hidden digits you read correctly on each color axis. Your screen is not color-calibrated, and this test cannot tell protanopia apart from deuteranopia — that requires a clinician's anomaloscope or calibrated plates.
Do not use these results for any medical, employment, or safety decision.
If you have concerns about your color vision, see a licensed optometrist or ophthalmologist. Everything runs in your browser and is never transmitted.