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A11y State Contrast Checker icon

A11y State Contrast Checker

On-demand WCAG contrast audit of interactive states (:hover, :focus, :focus-visible) using the Chrome DevTools Protocol.

Users0Current public install base
Rating--Store average score
Reviews0Public review volume
Manifest versionV3Extension platform version
7-day growth--Net users gained this week
7-day growth rate--Relative weekly velocity
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Version0.1.0
ManifestV3
Size21.33KiB
Languages1English
Published
Store updated
Last crawled
English
Overview

Product summary

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Automated accessibility tools such as axe-core, Lighthouse and WAVE only check colour contrast on the page's resting state. They miss contrast failures that appear only when an element is hovered or focused — a faint hover text colour, a near-invisible focus ring, an icon that washes out on hover.

A11y State Contrast Checker fills that gap. It uses the Chrome DevTools Protocol to force the real :hover, :focus and :focus-visible states on the page's rendering engine, then measures the resulting contrast — so specificity, !important, custom properties and media queries are all resolved correctly by the browser itself.

What it checks:

• 1.4.3 Contrast (Minimum) — text vs. background on hover/focus

• 1.4.11 Non-text Contrast — the focus ring vs. its surroundings

• 1.4.11 — icon-only controls (SVG fill/stroke) vs. background

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