BlindnessTest

What it does

BlindnessTest offers the most accurate online color blind test tools directly in your web browser. Built on clinical methods, our primary test uses computer-adaptive cone isolation to score red, green, and blue channels individually. Explore 6 interactive tools: Color Blind Test, Ishihara 38-plate edition, FM 100 Hue sorting, FALANT signal lights, Anomaloscope matching, and Cambridge thresholds. Track score history on your profile and export full PDF reports. 100% free with zero signups.

Take our fast, accurate, and completely free online Blindness Test. Check your color vision instantly with our suite of clinical-style tools.

Free color vision tests based on methods used in clinics and occupational screening, from Ishihara plates to hue arrangement and signal-light checks. Choose a test, finish in a few minutes, and see your result in the browser. No account or download required. Cone isolation screening with separate red, green, and blue channel scores. Estimates likely protan, deutan, or tritan deficiency in a few minutes. Classic pseudoisochromatic plates with hidden figures. The familiar starting point for red-green screening. Arrange color samples in hue order to measure how smoothly you discriminate similar shades across the spectrum. Match split color pairs with one slider and see how many you accept on a…from blindnesstest.com

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