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Focus Indicator Contrast Tester

Preview focus rings on adjacent colors; check thickness and visibility with documented assumptions.

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Add your input or try the worked example.

Using Focus Indicator Contrast Tester

Preview focus rings on adjacent colors; check thickness and visibility with documented assumptions.

Use Try example to explore focus indicator contrast tester, or enter your own focus ring.
Set component background, surrounding background, ring width (px). Read the field notes for supported values.
Choose Inspect focus appearance and inspect the result, including any review flags or unsupported cases.
Use the relevant download buttons to keep your result. CSV and report JSON preserve the available findings; original files are not changed.

Example

Focus ring: #7851c5
Component background: #ffffff
Surrounding background: #ece3f5
Ring width (px): 2
Ring offset (px): 3

Questions & answers

What does Focus Indicator Contrast Tester do?

Preview focus rings on adjacent colors; check thickness and visibility with documented assumptions.

What input does this tool support?

Focus ring. Component background. Surrounding background. Ring width (px). Ring offset (px)

What should I check before using the result?

Checks opaque sRGB contrast with adjacent colors and a simple 2px ring reference. It does not certify WCAG conformance, measure total indicator area or detect obscured focus.

Can I keep or share the result?

Yes. Use the result-specific downloads, CSV where available and report JSON. Downloads can contain your supplied information, so review the content before sharing. Processing runs in this browser; public pages also include the site’s approved advertising and optional analytics.