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Color Blindness Simulator

See how your image or design looks to people with protanopia, deuteranopia, tritanopia, or achromatopsia. Accessibility checker, no upload.

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1. Upload Image

Best with UI screenshots, charts, or design mockups

Upload an image to preview it through 4 types of color blindness

Roughly 1 in 12 men and 1 in 200 women have some form of color vision deficiency. Upload a UI screenshot, chart, or design mockup and DCPIXEL simulates all four major types of color blindness side by side, helping you catch accessibility issues before you ship.

Često postavljana pitanja

How accurate is this simulation?
It uses widely-used color transformation matrices to approximate how each color vision deficiency perceives color. It is a helpful guide, not a clinical diagnostic tool.
What should I check for in the results?
Look for elements that rely only on color to convey meaning — like red/green status indicators — and check whether they remain distinguishable in each simulation.
Which type of color blindness is most common?
Deuteranopia (reduced green sensitivity) is the most common form, followed by protanopia (reduced red sensitivity). Both primarily affect men.

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