What is accessibility?
Designing digital products and communication materials so that people with a range of disabilities can use them.
More details
WCAG 2.1 defines four principles: Perceivable (text alternatives), Operable (keyboard accessible), Understandable (plain language) and Robust (compatible with assistive technologies). The European Accessibility Act requires large companies to conform to WCAG 2.1 AA. 16% of the world's population lives with a disability.
For example…
GOV.UK raised its WCAG conformance score from 53% to 96% after a systematic audit. A side benefit: the accessibility improvements also made the site easier to use for everyone — with measurable drops in bounce rate and increases in task completion.