IT & Technology · Web DevelopmentMedium

Web Accessibility

USUK

Designing and building websites usable by people with disabilities.

Also: a11y

Definition

Web accessibility (a11y) is the practice of designing and developing websites and applications so people with disabilities can perceive, understand, navigate, and interact with them effectively. The Web Content Accessibility Guidelines (WCAG) define success criteria across four principles: Perceivable (content is available to all senses), Operable (UI is navigable by keyboard), Understandable (content and UI are clear), Robust (compatible with assistive technologies). Semantic HTML, ARIA labels, sufficient color contrast, and keyboard navigation support are key implementation techniques.

Example

“A developer adds descriptive alt text to all product images, ensures all interactive elements are keyboard-focusable, and provides captions for videos, making the e-commerce site usable by blind users with screen readers and deaf users.”

Synonyms

a11y
inclusive design
universal design
barrier-free design

Antonyms / Opposites

inaccessible design
exclusive design

Images

CC-licensed · free to use

Video

html
css
responsive-design
pwa

Dictionary Entry

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