Ada Color Contrast Checker
Calculate the contrast ratio of text and background colors.
| Contrast | |||
|---|---|---|---|
| AA | Large Text | Pass | |
| AA | Bold Small Text | Pass | |
| AA | Small Text | Pass | |
| AAA | Large Text | Pass | |
| AAA | Bold Small Text | Pass | |
| AAA | Small Text | Pass | |
This is large text (font-size: 18pt)
This is bold text
This is regular text
How to use the tool
- This tool follows the Web Content Accessibility Guidelines (WCAG), which are a series of recommendations for making the web more accessible.
- Regarding colors, the standard defines two levels of contrast ratio: AA (minimum contrast) and AAA (enhanced contrast).
- The level AA requires a contrast ratio of at least 4.5:1 for normal text and 3:1 for large text (at least 18pt) or bold text.
- The level AAA requires a contrast ratio of at least 7:1 for normal text and 4.5:1 for large text or bold text.
Get in touch
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