Accessibility & Contrast Auditor
Comprehensive side-by-side compliance verification comparing legacy WCAG 2.1 relative luminance against WCAG 3.0 Advanced Perceptual Contrast Algorithm (APCA).
Color Pair Inputs
Headline Typography Sample (24px)
Body text readability is evaluated using spatial frequency models and cone photoreceptor saturation curves.
Dual Audit Metrics
WCAG 2.1 AA PASS
8.42:1
Normal Text AA (4.5:1) PASS
Large Text AA (3.0:1) PASS
Normal Text AAA (7.0:1) PASS
Large Text AAA (4.5:1) PASS
APCA (WCAG 3.0) BODY PASS
+84.5 Lc
Body Content (|Lc| ≥ 75) PASS
Fluent Text (|Lc| ≥ 60) PASS
Large Text (|Lc| ≥ 45) PASS
Non-Text UI Elements (|Lc| ≥ 15) PASS
Simulação de Daltonismo & Degradação de Contraste (CVD)
Auditoria das razões de contraste quando texto e fundo são percebidos sob deficiências de fotorreceptores cônicos