Open-source AI tool flags color-contrast and semantic errors in real time

AI · 5 min read

The assistant, released under an MIT license, integrates with major design tools via plugin APIs and runs contrast and semantics checks on the client machine to keep proprietary designs private. Rather than a single pass audit, it offers inline suggestions—alternate palettes, ARIA role recommendations, and focus order visualizations—so designers can iterate without leaving the canvas.

Crucially, the tool combines rule-based WCAG checks with learned recommendations that surface common accessibility pitfalls in real projects. For example, it can suggest when a decorative image should be treated as informative, or propose simplified alt text for complex visuals. Teams can extend the models with their own component libraries so the assistant understands bespoke patterns and tokens.

Early user studies show designers accept about 70% of the assistant’s suggestions during prototyping, and the plugin reduces handoffs and rework with accessibility engineers. Contributors say the project’s emphasis on privacy and extendability aims to lower the barrier for smaller teams to adopt accessibility-first workflows.