Skip navigation

Ada Color Contrast Checker

Calculate the contrast ratio of text and background colors.

We can help with ADA compliance

AALarge TextPass
AABold Small TextPass
AASmall Text Pass
AAALarge TextPass
AAABold Small TextPass
AAASmall 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.
UTM Parameters

Get in touch

Call Phone


Email Email

Contact Form
Up to $50K

We will respond to you within 24 hours.

We'll sign an NDA if requested.

No account managers you'll be talking to tech experts and product people who are going to work with you later on.