b2KIT

Color Blindness Simulator

Simulate how colors appear to people with various types of color vision deficiency.

Original: #BB8800

Dichromacy (complete absence)

Original
Protanopia
No red cone cells (L-cones missing)
Prevalence: ~1% of males
Original
Deuteranopia
No green cone cells (M-cones missing)
Prevalence: ~1% of males
Original
Tritanopia
No blue cone cells (S-cones missing)
Prevalence: ~0.003%
Original
Achromatopsia
Complete color blindness (monochromacy)
Prevalence: ~0.003%

Anomalous Trichromacy (reduced sensitivity)

Original
Protanomaly
Reduced red sensitivity (L-cones altered)
Prevalence: ~1% of males
Original
Deuteranomaly
Reduced green sensitivity (M-cones altered)
Prevalence: ~5% of males
Original
Tritanomaly
Reduced blue sensitivity (S-cones altered)
Prevalence: ~0.01%
Original
Achromatomaly
Partial total color blindness
Prevalence: Very rare

Simulations use color vision deficiency transformation matrices based on published research. Click any simulated swatch to copy its hex value. These are approximations -- actual perception varies by individual. Deuteranomaly is the most common type, affecting ~5% of males.

How to Use Color Blindness Simulator

  1. 1

    Upload an image

    Select an image or enter colors to test for color blindness.

  2. 2

    Choose a type

    Select protanopia, deuteranopia, tritanopia, or other vision types.

  3. 3

    Compare the results

    View side-by-side how your design looks with different color vision.

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