Color blindness simulation
See what 300 million people see. Before you ship.
Three ways color breaks
Protanopia
Reduced red sensitivity. Reds appear darker, shift toward brown or green. Affects approximately 1% of males.
Deuteranopia
Reduced green sensitivity. The most common form. Greens shift toward reds and browns. Affects approximately 5% of males.
Tritanopia
Reduced blue sensitivity. Blues appear greener, yellows appear pinkish. Rare. Affects approximately 0.01% of the population.
Real simulation matrices
Paletter uses Vienot simulation matrices to transform RGB values into approximations of color vision deficiency perception. These are not simple desaturation filters. They are mathematically derived transformations based on cone response research.
Every color in your palette is transformed simultaneously. You see the full palette as someone with CVD would see it. Side by side with the original.
The simulation runs client-side, instantly. No server round-trip. Toggle between normal, protanopia, deuteranopia, and tritanopia with a single click.
Four questions. Every time.
- + Can you still distinguish all 5 roles?
- + Does the accent still pop against the background?
- + Is the ink still clearly different from the background?
- + Are support and neutral visually distinct from each other?
If any pair becomes indistinguishable under simulation, your palette needs adjustment. Better to catch it here than in a user complaint.
No separate tool. No second step.
Color blindness preview is free on every generated palette. No account required for this feature.
Right next to the normal view, three simulation tabs. Protanopia. Deuteranopia. Tritanopia. See your palette through each type of CVD without leaving the page.
Most designers skip CVD testing because it requires a separate tool, a separate workflow, a separate step. Paletter removes the friction. The simulation is right there. No excuse not to check.
Preview your palette
Generate a palette. See it through three types of CVD. Free.
Start generating