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Drop a screenshot, mockup, or chart in and see how it appears across the most common color vision deficiencies. Everything is processed locally in your browser — your image never leaves your device.
Drop an image here
PNG, JPG, GIF, or WebP. Stays in your browser — nothing is uploaded.
We apply the Brettel/Viénot/Mollon color confusion matrices used by most accessibility tools. The result is a perceptually plausible approximation, not a medical diagnostic, and individual experience varies.
Charts and dashboards, status indicators, error/success styling, form validation, marketing graphics — anywhere meaning rests on color alone. See WCAG 1.4.1 Use of Color and 1.4.11 Non-text Contrast.