COLOR CONTRAST
Check any two colors against WCAG AA and AAA standards. Instant results, all in your browser.
Click "Suggest Fix" to find a color that passes AA.
Upload an image, then click anywhere on it to pick a color.
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The quick brown fox jumps over the lazy dog. (16px normal text)
The quick brown fox jumps over the lazy dog. (24px bold)
PASS means your color combination meets WCAG 2.1 guidelines at that level. Text is readable for most users, including those with low vision (approximately 20/40 vision).
FAIL means the contrast is insufficient. Users with low vision or viewing in bright environments may struggle to read the text. Consider darkening the foreground or lightening the background.
Remember: WCAG AA is the legal standard for most websites (Section 508, EN 301 549). AAA is a higher goal but not always achievable — and that's okay.
Enter hex values (one per line or comma-separated) to generate a contrast matrix.
Frequently Asked Questions
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How to Use
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How to Calculate
Über Kontrast-Checker
Kontrast-Checker ist ein kostenloses Tool für color contrast checker: WCAG- und APCA-Kontraste zweier Farben mit AA/AAA-Bestanden.
LSI: Präzision, Tempo, Privatsphäre. Bildung und gratis.
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Methodology & feedback
Figures run locally in your browser from the values you enter (page updated ). Estimates are educational only — verify finance, tax and health decisions with a qualified professional (see Disclaimer). Spotted an error? Report it via contact and we correct with a new update date.