Accessibility in Data Visualization
summary
Explains concrete rules and tools: EU Accessibility Act enforces accessibility from 28 June 2025, WCAG success criteria apply, and WebAIM found only ~2% clean pages in 2020 with ~66 errors per page on average; roughly 15–25% of people (≈1.5 billion) have disabilities. Recommends 3:1 contrast, color-not-only encodings, semantic HTML/ARIA, alt text tuned to context, keyboard arrow navigation, and fallback data like tables or turn charts into lists for screen readers. Tools and libraries: Chartability, datavizcontrast.com, Figma plugins (Stark/Able), axe, Lighthouse, and Highcharts with built-in accessibility.
AI-written summary · about
chapters (10)
- 0:00Introduction to dataviz accessibility
- 2:18EU accessibility laws and WCAG
- 8:03Why dataviz is inherently accessible
- 16:07Guidelines for accessible dataviz
- 17:17Color contrast in visualizations
- 21:16Colorblind-friendly design
- 23:24Multiple formats for data
- 25:23Screen reader experience for charts
- 33:06Designing for inclusion over compliance
- 36:16Q&A on accessibility testing
related talks
37mAccessibility Matters: Creating a Better Web
41mAccessibility is a Requirement
36mThe Human Side of Accessibility
41mAccessible Charts Done Right
54mAccessibility by everyone (and for everyone)
38mAccessibility in Data Visualizations: Two Case Studies
01h 03mAccessibility: Making your websites more inclusive
13mDemystifying Web Accessibility