Is the button focusable? - Manuel Matuzovic
GitHub - thisisfranciswu/enterprise-ui-palette-generator: A tool to automate the generation of accessible enterprise UI color palettes.
A11y - Focus Order | Figma
A guide to designing accessible, WCAG-conformant focus indicators
Guidesight
The Realities And Myths Of Contrast And Color — Smashing Magazine
Chartability
Viz Palette
The European Accessibility Act for websites and apps by Martijn Hols
Planning Usability Testing | Accessibility in User-Centered Design | Just Ask: Integrating Accessibility Throughout Design
Information about participant recruitment
Colorable
ContrastGrid - Create a color grid showing contrast ratios
Overlay Fact Sheet
How accessible is my visualization? Evaluating visualization accessibility with Chartability.
Perceptual Palettes | Accessible Color Palette Generator
Accessibility essentials every front-end developer should know by Martijn Hols
An alt Decision Tree