Question 1

How do I check color contrast online free?

Accepted Answer

Enter foreground and background colors above for an instant WCAG ratio. Free, no sign-up.

Question 2

What is a good contrast ratio?

Accepted Answer

4.5:1 or higher passes WCAG AA for normal text. 7:1 passes AAA. This tool shows it live.

Question 3

Is this checker free?

Accepted Answer

Yes, completely free with no sign-up. Check unlimited color pairs on any device.

Question 4

Do I need to sign up?

Accepted Answer

No sign-up needed. Check unlimited color pairs free on any device.

Question 5

Does it work on mobile?

Accepted Answer

Yes. Check contrast free in your phone browser, no app needed.

Question 6

Which standards are covered?

Accepted Answer

WCAG AA and AAA for normal and large text, with live pass and fail badges.