A user preference indicating they prefer limited motion. Use CSS media query prefers-reduced-motion to respect it.
A visible caret or pointer state that helps users track input focus or text insertion position, essential for low-vision and cognitive accessibility.
The contrast ratio between foreground and background colors. WCAG requires 4.5:1 for body text and 3:1 for large text, icons, and UI.
A range of conditions where certain colors are harder to distinguish. Designs must not rely on color alone to convey information.
Numeric ratio expressing luminance difference between two colors. Common thresholds: 4.5:1 for normal text, 3:1 for large text or UI.
Operating system display mode that increases contrast. Respect system preferences and ensure custom styles remain legible.
Text presented within an image instead of actual characters. Generally discouraged; use real text where possible.
This glossary is continuously improved and maintained by WebAbility to advance accessible design and development.Contact us to suggest improvements or report issues.