Contrast Ratio Calculator

Easily measure and optimize color contrast for readability and accessibility with our Contrast Ratio Calculator!

Contrast Ratio Calculator

Preview Text - The quick brown fox jumps over the lazy dog

Contrast Ratio 21:1
WCAG AA (4.5:1) Pass
WCAG AAA (7:1) Pass

Confirm Your Email

Please confirm that this email address is correct:

✉️

Check Your Email

We've sent a confirmation email to:

  1. Open your email inbox
  2. Look for an email from us
  3. Click the confirmation link in the email

Please confirm your subscription within 24 hours.

Can't find the email? Check your spam folder or
Click here to resend the confirmation email