Why Accessibility Matters WCAG Levels
Learn WCAG A, AA, AAA conformance and why it matters legally and ethically.
What Is Web Accessibility?
Web accessibility means ensuring that people with disabilities can perceive, understand, navigate, and interact with the web:
- Visual impairments — blindness, low vision, color blindness
- Motor impairments — unable to use a mouse
- Hearing impairments — deafness
- Cognitive disabilities — dyslexia, ADHD, memory challenges
Why Accessibility Matters
Accessibility is important for multiple reasons:
- Human right — everyone deserves access to the web
- Legal requirement — ADA, Section 508, EU Accessibility Act
- Business case — 15% of the world has a disability (1 billion people)
- SEO — accessible sites often rank better
- Better UX for everyone — curb-cut effect: captions help in noisy environments
All lessons in this course
- Why Accessibility Matters WCAG Levels
- Heading Hierarchy for Screen Readers
- Image Alt Text When and How
- Keyboard Navigation and Focus Order