Website Accessibility: A Practical Guide to WCAG Compliance

Website accessibility ensures everyone can use your site, including people with disabilities. It's not just ethical - it's often legally required. Why Accessibility Matters Legal Requirements: Equality Act 2010 requires UK businesses make reasonable adjustments for disabled people. Your website is included. Larger Audience: 15% of UK population has some disability. Accessible sites reach more customers. Better SEO: Many accessibility improvements benefit SEO. Clear structure, alt text, semantic HTML help search engines. Improved Usability: Accessible sites are easier for everyone, not just people with disabilities. Risk Mitigation: Avoid costly legal action and reputation damage from accessibility complaints. Understanding WCAG Web Content Accessibility Guidelines (WCAG) are international standards for web accessibility. Three Levels: Level A (basic accessibility, minimum requirement), Level AA (recommended standard, most common target), Level AAA (highest accessibility, not always achievable) Most UK organizations target Level AA compliance. Four Principles (POUR): Perceivable (users can perceive the information), Operable (users can operate the interface), Understandable (users can understand the information and interface), Robust (content works across different technologies and assistive devices) Key Requirements Text Alternatives: Provide text alternatives for non-text content. Images need alt text describing content, empty alt for decorative images. Videos need captions for audio content, audio descriptions of visual content, transcripts available. Keyboard Navigation: Everything must work without mouse. All interactive elements keyboard accessible, logical tab order, visible focus indicators, keyboard shortcuts don't conflict, skip navigation links. Color and Contrast: Don't rely on color alone to convey information. Normal text: minimum 4.5:1 contrast, large text (18pt+): minimum 3:1, interactive elements: 3:1 Headings: Use semantic HTML properly. One H1 per page, don't skip heading levels, use headings for structure not styling. Forms: Make forms accessible. Every input needs label, labels associated with inputs, use placeholder as supplement not replacement. Mobile Accessibility: Touch targets 44x44px minimum, no hover-dependent functionality, orientation works both ways, pinch-to-zoom enabled Common Issues Missing alt text, poor color contrast, non-descriptive links, inaccessible forms, keyboard traps, missing heading structure, auto-playing media, time-based content Testing Use automated tools (WAVE, axe DevTools, Lighthouse), but automated testing catches only 20-30% of issues. Manual testing is essential. Navigate site using only keyboard, test with screen readers (NVDA, JAWS, VoiceOver), check color contrast, complete forms using keyboard/screen reader, zoom to 200% and verify everything works. Quick Wins Add alt text, fix color contrast, add keyboard focus, label forms, fix heading structure Accessibility improves your website for everyone. It's an investment in reaching more customers and reducing legal risk. Need help making your website accessible? I offer accessibility audits and remediation for UK businesses. Get in touch for a free assessment.