Color Blindness Simulator

Seventy-eight ways of seeing, simulated.

Every condition runs the same ten reference swatches through the published models, in linear light, so two cards differ because the conditions differ. Bring a colour, a palette or your own screenshot and watch what it becomes.

Conditions 78 Categories 11 Brettel 1997 · Viénot 1999 · Machado 2009 Read the API reference →

Educational visualisation only. Not a medical simulation, a diagnostic tool, or a substitute for professional eye care — and screen colours are not calibrated.