Color Vision — Deficiencies & Simulations
Simulations of color vision deficiencies from protan, deutan, and tritan types to complete achromatopsia.
Protanopia
Complete absence of red cone photoreceptors causing red-green confusion with darkened reds.
Simulate Protanopia- No red cone function
- Red-green confusion
- Darkened red spectrum
Protanomaly
Reduced red cone sensitivity causing mild red-green discrimination difficulty.
Simulate Protanomaly- Shifted red sensitivity
- Mild red-green confusion
- Anomalous trichromacy
Deuteranopia
Complete absence of green cone photoreceptors causing red-green confusion.
Simulate Deuteranopia- No green cone function
- Red-green confusion
- Most common dichromacy
Deuteranomaly
Reduced green cone sensitivity — the most common form of color vision deficiency.
Simulate Deuteranomaly- Shifted green sensitivity
- Mild red-green confusion
- Most prevalent CVD
Tritanopia
Complete absence of blue cone photoreceptors causing blue-yellow confusion.
Simulate Tritanopia- No blue cone function
- Blue-yellow confusion
- Rare dichromacy
Tritanomaly
Reduced blue cone sensitivity causing mild blue-yellow discrimination difficulty.
Simulate Tritanomaly- Shifted blue sensitivity
- Mild blue-yellow confusion
- Anomalous trichromacy
Achromatopsia
Complete color blindness — absence of all cone function resulting in grayscale vision.
Simulate Achromatopsia- No color perception
- Rod-only vision
- Extreme photophobia
Color Inversion
Full spectral inversion of perceived colors — a perceptual simulation tool.
Simulate Color Inversion- Inverted hue mapping
- Complementary swap
- Diagnostic utility
Grayscale
Complete desaturation rendering all colors as luminance-only grayscale values.
Simulate Grayscale- Luminance only
- Zero saturation
- Contrast analysis
Featured Simulations
Selected deficiencies from the color vision collection.
Protan Deficiencies
Protanopia and protanomaly — red cone absence or reduced sensitivity.
Deutan Deficiencies
Deuteranopia and deuteranomaly — the most common color vision deficiencies.
Tritan & Monochromacy
Tritanopia, tritanomaly, and achromatopsia — blue-yellow and total color loss.