# WCAG

> The Web Content Accessibility Guidelines — the standard that defines what makes web content usable by people with disabilities; AA contrast is 4.5:1 for body text.

WCAG organises accessibility around four principles: content must be perceivable, operable, understandable and robust. The conformance levels are A, AA and AAA; AA is the usual legal and practical target. Most real-world failures are mechanical, not exotic — contrast ratios that fail, focus indicators removed for looks, inputs without labels, images with decorative or missing alt text.

The payoff is broader than compliance: keyboard-navigable interfaces work better for everyone, semantic HTML is what screen readers and answer engines both read, and high contrast helps on a phone in daylight. In the EU, accessibility for commercial websites moved from recommendation to legal requirement with the European Accessibility Act applying from June 2025.

## Related terms

- https://dfieldsolutions.com/en/glossary/core-web-vitals.md
- https://dfieldsolutions.com/en/glossary/hydration.md
- https://dfieldsolutions.com/en/glossary/static-generation.md

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Source: https://dfieldsolutions.com/en/glossary/wcag
DField Solutions — Dunakeszi, Hungary — dezso@dfieldsolutions.com
Booking: see https://dfieldsolutions.com/en/contact