Accessibility Review

Check contrast before UI colors reach production.

Set foreground and background colors, confirm the contrast ratio, and verify AA or AAA status for both standard and large text.

WCAG focus

Use this for buttons, cards, alerts, form controls, and text on branded surfaces.

Preview

Accessible Interface

The current pair is evaluated for standard and large text thresholds.

Practical guide

Use Accessibility Contrast Checker with a real workflow in mind.

The tool keeps the preview, compliance state, and ratio output visible in one workspace, so teams can move from color exploration to production-safe decisions without switching between separate accessibility references.

What to expect

  • Live foreground and background color controls with both color inputs and editable hex values.
  • Instant contrast ratio calculation with clear AA and AAA checks for normal and large text.
  • Preview surface for testing headings, body copy, and button readability in one panel.
  • Swap control for quickly validating inverse themes, dark surfaces, and alternate UI states.

Inside the freebie

  • Live foreground and background color controls with both color inputs and editable hex values.
  • Instant contrast ratio calculation with clear AA and AAA checks for normal and large text.
  • Preview surface for testing headings, body copy, and button readability in one panel.
  • Swap control for quickly validating inverse themes, dark surfaces, and alternate UI states.

Best use cases

Best for design system QA, component reviews, and color audits on branded UI surfaces where accessible contrast needs to be confirmed quickly.

  • Use Accessibility Contrast Checker as a starter utility, a learning reference, or a quick workflow base for your own projects.
  • Open the tool in the browser first to review the interaction flow before adapting the underlying files.
  • Because the freebie stays lightweight and database-free, it is easy to move between local builds and client workspaces.

Recommended workflow

  1. 1

    Set the main input first and keep the scope narrow to get a cleaner result.

  2. 2

    Use the first output as a working draft and adjust the tool settings before exporting.

  3. 3

    Review the result in the real context where it will be used before treating it as final.

Before you rely on the output

Is the output from Accessibility Contrast Checker final by default?

No. Treat the first result as a strong starting point. Review it in the context where you plan to use it, then tighten the final version before publishing or shipping.

Who is this tool most useful for?

Best for design system QA, component reviews, and color audits on branded UI surfaces where accessible contrast needs to be confirmed quickly.

What is the best way to get a better result?

Be specific with the input, keep the job narrow, and make one change at a time between runs. That usually leads to a cleaner result than trying to solve everything in one pass.