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About
Re-renders an image as it may appear with protanopia, deuteranopia, tritanopia or achromatopsia, so you can check that colour alone is not carrying meaning. Runs in your browser.
Preview a local image through four common color-vision simulation matrices to help review contrast and visual communication.
What you can do
Simulates four common color-vision differences.
Shows the original and transformed image side by side.
Processes image pixels locally with Canvas.
Common uses
Review a UI screenshot for color-only meaning.
Check an illustration before publishing.
Teach how different color perception can affect a design.
Frequently asked questions
Is this a medical color-vision test?
No. It is a design preview and should not be used for diagnosis.
Design Drifter