01
STEP 1
Enter text and background colors
Use the exact foreground and background colors from the interface you are testing.
Free Accessibility Tool
WCAG Color Contrast Checker
Check foreground and background colors against WCAG 2.2 AA and AAA contrast thresholds for text and interface elements. Free, instant, and private.
FreeUseful result before any sales conversationClearPlain-English guidance, not unexplained dataPracticalBuilt for real website and marketing work
01Enter the real data
Use the actual URL, values, content, or project details you want to evaluate.
02Read the result in context
The interface is designed to explain what matters instead of showing raw output alone.
03Take the next action
Copy, download, fix, test, or unlock the deeper report depending on the tool.
Interactive Workspace
Run the tool
START HERE
Complete the requested fields below. Your results appear in the same workspace so you can understand them without jumping between screens.
Tool readyPowered by Avenzo Digital
LIVE WCAG CHECK
Do these colors have enough contrast?
Choose a text color and a background color. The result updates instantly as you type.
17.74:1Excellent contrast
LIVE PREVIEW
Readable text should feel effortless.
This sample shows how body copy and interface text look with your selected colors.
PASSNormal text — AANeeds 4.5:1
PASSNormal text — AAANeeds 7:1
PASSLarge text — AANeeds 3:1
PASSLarge text — AAANeeds 4.5:1
PASSUI componentsNeeds 3:1
WCAG contrast ratios help assess color readability. A complete accessibility review also considers keyboard access, semantics, focus states, motion, labels, and assistive technology behavior.
Understand The Result
How WCAG Color Contrast Checker works
Knowing what a result means is more useful than seeing a score or generated output by itself. Use this walkthrough before making an important change.
02
CHECKRESULT
STEP 2
Read the contrast ratio
Compare the result against the relevant WCAG threshold for normal text, large text or interface components.
03
ReviewUse result
STEP 3
Check the rest of accessibility too
Passing contrast does not verify keyboard access, focus states, labels, semantics or assistive-technology behavior.
Important context
Use this as a fast accessibility check, not a complete audit. Important interfaces should still be reviewed against current WCAG guidance and tested with real interaction patterns.
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