APCA Support

Utilize the Advanced Perceptual Contrast Algorithm (APCA) for more accurate contrast predictions that account for how humans actually perceive contrast. APCA provides better accessibility evaluation especially for text sizes, weights, and modern display technologies.

• ✓Based on the latest research in contrast perception
• ✓Better predicts legibility for different text sizes and fonts
• ✓Accounts for display technology and viewing conditions
• ✓Superior to WCAG for evaluating thin fonts and small text
• ✓Recommended by accessibility experts for modern interfaces
• ✓Provides contrast scores (Lc) with clear pass/fail thresholds