Professional color vision testing with medical-grade accuracy. Features Ishihara plates, advanced simulation, and Daltonization correction technology.
Choose a color vision deficiency type to simulate how people with different types of color blindness see the world
Trichromat.
Full color vision with all three cone types
Prevalence: ~92% of males, ~99.5% of females
Affected: None
L-cone absent.
Complete absence of red photoreceptors
Prevalence: ~1% of males, ~0.01% of females
Affected: L-cones (red)
Confused colors: Red-Green, Purple-Blue, Orange-Yellow-Green.
Severity: 100%.
L-cone anomalous.
Shifted red photoreceptor sensitivity
Prevalence: ~1% of males, ~0.02% of females
Affected: L-cones (red) - shifted
Confused colors: Red-Green, Brown-Green.
Severity: 50%.
M-cone absent.
Complete absence of green photoreceptors
Prevalence: ~1% of males, ~0.01% of females
Affected: M-cones (green)
Confused colors: Red-Green, Purple-Blue, Yellow-Green.
Severity: 100%.
M-cone anomalous.
Shifted green photoreceptor sensitivity
Prevalence: ~5% of males, ~0.35% of females
Affected: M-cones (green) - shifted
Confused colors: Red-Green, Brown-Red.
Severity: 50%.
S-cone absent.
Complete absence of blue photoreceptors
Prevalence: ~0.001% of population
Affected: S-cones (blue)
Confused colors: Blue-Yellow, Purple-Red, Green-Blue.
Severity: 100%.
S-cone anomalous.
Shifted blue photoreceptor sensitivity
Prevalence: ~0.01% of population
Affected: S-cones (blue) - shifted
Confused colors: Blue-Green, Yellow-Pink.
Severity: 50%.
Rod monochromat.
Complete color blindness - only rods function
Prevalence: ~0.003% of population
Affected: All cone types
Confused colors: All colors appear as shades of gray.
Severity: 100%.
Medical-grade color vision assessment with standardized plates
If you cannot identify numbers in the plates (for example, due to low vision, blindness, or assistive technology), you do not need to complete the visual test. Use one of the options below to continue.
Control plate - visible to everyone
Professional color palettes optimized for all types of color vision deficiencies, featuring WebAbility brand colors and accessibility standards
WebAbility brand colors optimized for accessibility
Best for:
IBM accessible color system
Best for:
Scientific publication standard
Best for:
WebAbility blue color variations for different contrast needs
Best for:
Optimized for color blind accessibility
Best for:
WebAbility semantic colors meeting WCAG AAA standards
Best for:
1 in 12 men have CVD
1 in 200 women affected
Living with color blindness
Most common form
WebAbility's advanced color blind simulator helps you create inclusive designs that work for all 350+ million people with color vision deficiencies worldwide
Professional Ishihara and D-15 color vision assessments
Color correction technology for enhanced visibility
Meet international accessibility standards
Weekly tips on creating inclusive designs and the latest in color vision research