Accessibility in 2026: Legal Requirement and Competitive Advantage

Web accessibility has moved from "best practice" to legal requirement in most major markets. The Americans with Disabilities Act (ADA) has been interpreted by courts to apply to websites, with litigation increasing year-over-year. The EU's European Accessibility Act came into force in 2025. For any product targeting business customers, accessibility compliance is now a procurement requirement. Beyond legal compliance, accessible websites consistently score better on Core Web Vitals, rank better in search results, and convert better — the practices that make websites accessible also make them faster and clearer.

The WCAG 2.2 Four Principles

WCAG 2.2 organizes requirements around four principles: Perceivable (information must be presentable to users in ways they can perceive), Operable (UI components must be operable by all users), Understandable (information and operation must be understandable), and Robust (content must be robust enough to be interpreted by assistive technologies). Each principle contains guidelines, each guideline contains success criteria rated A (minimum), AA (standard), or AAA (enhanced). Legal compliance typically requires AA conformance.

The WCAG 2.2 Developer Checklist

Images: all meaningful images have descriptive alt text; decorative images use alt="" to be ignored by screen readers. Color: color is never the only means of conveying information; text has 4.5:1 contrast ratio against background (3:1 for large text). Keyboard: all interactive elements are reachable and operable by keyboard; focus is visible and never trapped; skip navigation links allow keyboard users to bypass repetitive navigation. Forms: all form inputs have associated labels (not just placeholder text); error messages identify the specific field and describe the error. Motion: animations respect prefers-reduced-motion media query; no content flashes more than 3 times per second.

ARIA: When and How to Use It

ARIA (Accessible Rich Internet Applications) attributes add semantic meaning to HTML elements that lack native accessibility. The first rule of ARIA: don't use ARIA if a native HTML element already provides the semantics. Use button not div role="button". Use nav not div role="navigation". When ARIA is necessary — for complex widgets like comboboxes, date pickers, and custom sliders — implement the full ARIA pattern including keyboard interaction. aria-label provides an accessible name for elements without visible text. aria-expanded, aria-selected, and aria-checked communicate state for custom controls. aria-live="polite" announces dynamic content changes to screen readers.

Testing Accessibility

Automated testing with axe-core (integrated into Playwright, Jest, and Chrome DevTools) catches ~30-40% of accessibility issues. Manual testing covers the rest: keyboard-only navigation of every interactive element, screen reader testing with NVDA (Windows) or VoiceOver (Mac/iOS), zoom testing at 200% and 400%, and color contrast verification with the browser's DevTools color picker. ProofMatcher's templates are built with WCAG 2.2 AA compliance from the start — download accessible dark mode templates at proofmatcher.com.