Accessibility isn't just compliance — it lifts conversion
The same fixes that pass WCAG also reduce form abandonment.
Accessibility is sold as risk mitigation. The conversion uplift is rarely mentioned and usually larger. Most accessibility programmes only justify themselves to legal and ops; they could justify themselves to growth too, and probably should.
The high-leverage fixes
- Visible focus states on every interactive element — keyboard users include power users on desktop, not just assistive tech users.
- Descriptive labels on form fields, not placeholder text.
- Error messages with recovery instructions, inline next to the field.
- Keyboard-navigable carousels and modals with proper focus management.
- Colour contrast above 4.5:1 — most brand systems quietly violate this.
The measurable impact
Form completion typically rises 8–14% after a focused accessibility sprint on funnels. Bounce on key pages drops 3–6%. These aren't speculative numbers — they show up in A/B tests of accessibility-fixed pages vs the original.
Where to start
Run axe-core in CI to catch the obvious issues, then commission a manual audit on the top five conversion paths. Manual audits catch the meaningful issues that automation misses — focus order, contextual label clarity, focus trap correctness in modals.
Governance
Accessibility belongs in your design system's component contract, not as a quarterly remediation project. Components that ship inaccessible should fail PR review like components that ship with broken types.