Image Palette / Accessibility Analyzer
Extract image colors and check WCAG text contrast ratios. Compare foreground and background colors, review AA and AAA thresholds and save palette JSON.
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Your files are processed locally. The original file is kept unchanged. Choose your settings, create the result, and use the download button to save it.
About Image Palette & Contrast Analyzer
Explore representative image colors and test a chosen text/background pair. The analyzer reports numerical contrast ratios and threshold results for normal and large text. It checks color contrast only; it is not a complete accessibility audit or certification.
How to use this tool
01 · Prepare your input
Choose a supported image from your device, or try the built-in sample.
02 · Choose colors to analyze
Extract an image palette if desired, then set foreground and background colors for the contrast calculation.
03 · Review the result
Analyze the contrast ratio, compare the displayed thresholds and download palette JSON if needed.
Before you download.
What to know about Image Palette & Contrast Analyzer.
Does a passing ratio certify accessibility?
No. This is a color-contrast check only. Text size, context, focus states, keyboard access and many other requirements need separate review.
Are my files uploaded for processing?
No. File contents are processed in your browser. The site, codecs and any required models still need to load over the network; local results depend on your device and browser.