Contrast and visual perception

Measurement boundary

The solid foreground #1E1E1E is intended for readable dark text on the warm canvas and white surfaces. The muted foreground is 50% alpha and must be composited against its actual background before evaluation. White on turquoise, thin borders, disabled opacity, icon-only actions and review gold need independent checks.

Review protocol

• Calculate WCAG text contrast using the actual composited foreground/background; apply the appropriate small/large-text threshold.
• Check focus indicators and control boundaries separately from text contrast.
• Use text and state semantics alongside color for progress, availability and connection state.
• Do not call the app WCAG-compliant based on a screenshot or this reference.
• Record problems in the readiness register and fix the source before refreshing evidence.