Free Color Tools
Everything you need to check color vision and design for every viewer. Free, private, no signup.
Core Tools
Color Blind Test
A quick screening for common red-green and blue-yellow patterns.
Kids Color Vision Test
Picture-based screening made for younger users.
Color Blind Simulator
Preview how colors appear across vision types.
Image Checker
Upload a photo or graphic and compare simulated views.
Palette Checker
Find colors in your palette that may be confused.
Contrast Checker
Test text and background pairs against WCAG.
Color Identifier
Point your camera or pick a pixel to name a color.
Color Vision Game
Spot the odd shade out. Just for fun — not a medical test.