Error Identification
WCAG requirement to clearly identify and describe input errors to users in text form.
More Related Accessibility Terms
Bypass Blocks
Mechanisms such as skip links and landmarks that let users jump past repeated content directly to main sections.
Character Key Shortcuts
Single‑letter keyboard shortcuts that must be remappable, turned off, or only active on focus to prevent accidental activation.
Contrast Ratio
The relative luminance of the lighter color divided by that of the darker color (each plus 0.05), from 1:1 to 21:1. WCAG AA requires 4.5:1 for normal text and 3:1 for large text and UI components.
Error Prevention
Design patterns that reduce mistakes (confirmation, reversible actions, previews) required for important transactions by WCAG.
Error Recovery
Clear, actionable guidance to fix mistakes, including inline error messages associated with inputs via aria-describedby.
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