The Foundation of Digital Accessibility
Web Content Accessibility Guidelines (WCAG) 2.1 define how to make digital content usable by everyone, including people with visual, auditory, motor, and cognitive disabilities. These guidelines are organized around four principles: Perceivable, Operable, Understandable, and Robust (POUR).
Why This Matters for Designers
Over 1 billion people worldwide live with some form of disability. Beyond the ethical imperative, accessibility is increasingly a legal requirement — the ADA, Section 508, and the European Accessibility Act all mandate accessible digital experiences. Companies that ignore accessibility face lawsuits, lost revenue, and damaged reputations.
The Three Conformance Levels
Level A covers the most basic accessibility requirements. Level AA is the standard most organizations target, addressing the biggest barriers. Level AAA is the highest level, though achieving full AAA conformance is rarely practical for entire sites.
In this course, we focus on Level AA conformance — the sweet spot where your designs become accessible to the vast majority of users without requiring extreme trade-offs.
Hands-On Exercise
Open any website you’ve designed or use regularly. Try navigating it using only your keyboard (Tab, Enter, Escape). Write down every place where you got stuck or couldn’t tell where focus was. This exercise builds empathy and reveals the most common accessibility gaps.
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