Web Content Accessibility Guidelines (WCAG)

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The WCAG 2.1 standard, short for Web Content Accessibility Guidelines 2.1, is a set of international guidelines for making web content more accessible to people with disabilities.

It sets out specific criteria to be met to ensure that websites and applications are usable by everyone, regardless of their disability.

The WCAG 2.1 criteria cover a variety of areas, including clear navigation, compatibility with assistive technologies, visual contrast, and more.

This standard is essential for creating inclusive Drupal sites that comply with accessibility regulations.
It is established by the W3C and serves as the common denominator for the following standards.
An accessible site complies properly with the WCAG standard, but not all WCAG-compliant sites necessarily meet the requirements of country-specific standards (in France, the RGAA).