Powered by APCA
Contrast checker
that fixes your design
Next-gen contrast checker with auto-fix. See issues, apply fixes, ship accessible.
Next-gen contrast checker with auto-fix. See issues, apply fixes, ship accessible.
Select any layer or scan an entire frame at once. Every text layer is checked against your chosen readability standard.
Each layer shows its contrast score, the minimum it needs, and how far off it is. Plain language, no jargon.
Every failing layer gets a suggested color fix with a preview. Click Apply and the color updates on your canvas instantly.
WCAG 2.x uses a simple math ratio that treats all text the same. A 14px caption and a 48px headline get the same threshold. Dark mode results are often wrong.
APCA models human vision. It knows that font size, weight, and polarity affect readability. Small text needs more contrast. Bold text needs less. Dark backgrounds work differently than light ones.
Perceptual contrast algorithm that models human vision accurately.
Suggested color fixes applied directly to your canvas.
Check every text layer in a frame with one click.
Two conformance levels from basic contrast to font-aware thresholds.
See the resulting contrast before applying any fix.
No jargon. Every result explains what's wrong and how to fix it.