APCA Contrast Calculator
Next-gen perceptual contrast for WCAG 3.0. Accounts for font size, weight, and human perception.
Contrast Ratio
12.6:1
AA Normal
AA Large
AAA Normal
AAA Large
APCA (WCAG 3.0)
px
101.9Lc
Body Text (Lc 75)Large Text (Lc 60)UI Component (Lc 45)
APCA values are perceptual — they account for font size, weight, and light/dark adaptation. Higher Lc = better readability.