홈
Tom Utilities

색상 대비 검사기

개발자 유틸리티

WCAG 대비율을 측정하고 일반 및 큰 텍스트에서 AA와 AAA를 충족하는지 확인합니다.

사용 방법

Check a pair of colors

Pick a foreground and background color. The tool shows the contrast ratio and pass or fail badges for each WCAG level.

  1. Choose the text color.
  2. Choose the background color.
  3. Aim for at least 4.5:1 for normal text.

WCAG thresholds

Normal text needs 4.5:1 for AA and 7:1 for AAA. Large text (18pt or 14pt bold) needs 3:1 for AA and 4.5:1 for AAA.

자주 묻는 질문

What counts as large text?

WCAG defines large text as at least 18pt (24px) or 14pt (18.66px) when bold.

Is a higher ratio better?

Yes. A ratio of 21:1 is the maximum, achieved by black text on a white background.