Accessibility and Case: Why ALL CAPS Hurts Readability
WCAG doesn't forbid uppercase, but extensive research shows it slows reading speed and hurts comprehension. Worse, some screen readers interpret all-caps as acronyms and spell them out letter by letter.
Accessible alternatives
- Use CSS
text-transform: uppercaseinstead of typing in caps — screen readers see the original mixed case - Bold or size instead of caps for emphasis
- Reserve caps for short labels (≤3 words) where needed for visual hierarchy
