Check & Test color tools
Test accessibility, validate color values, compare colors, and inspect images without uploading anything. Everything runs locally in your browser.
Contrast Checker
Check WCAG contrast ratio and AA or AAA results for text and interface colors.
Open tool →Color Blindness Simulator
Preview how a palette may appear with common color-vision deficiencies.
Open tool →Color Picker (Eyedropper)
Pick a color from an uploaded image or the native browser eyedropper when available.
Open tool →Color Distance Checker
Compare two colors with a perceptual Delta E similarity score.
Open tool →Color Format Validator
Detect whether a pasted CSS color is valid and identify its format.
Open tool →