WCAG & standards

The Web Content Accessibility Guidelines are the technical yardstick for digital accessibility — in Europe via the harmonised standard EN 301 549. This category explains the success criteria so they become usable day to day: contrast values and text sizes, keyboard operability and visible focus, target sizes for controls, motion and autoplay, form errors and status messages, semantic structure and accessible names. We look at the differences between conformance levels, at what WCAG 2.2 added, and at which checks can be automated and which necessarily remain manual. Every article names concrete testing steps rather than general appeals. We also classify the tools: what automated checks reliably find, where they produce false positives and why an assessment without manual testing stays incomplete.