ui-ux-design-principles

Use when designing UI, auditing UI/UX, choosing colors, implementing buttons/forms, or making layout decisions. Covers WCAG 2.1 AA form accessibility (aria-invalid, role="alert", aria-describedby, focus management), UX laws (Fitts, Hick, Jakob), color theory (60-30-10), touch targets (44px). Prevents hardcoded hex, accessibility violations, missing ARIA attributes.