Contrast & APCA Calculator

WCAG 2.x ratios, APCA Lc, algorithm distance. Colors sync to URL.

Text Color

Background

The Quick Brown Fox

Jumped over the lazy dog.

WCAG 2.1 Ratio

21.00

AA NormalPASS

AA LargePASS

AAA NormalPASS

APCA 0.98G (Lc)

Lc 106

Best UseExcellent

75+ BodyYes

60+ HeadYes

Raw Data

Color Diff500

Bright Diff255

Lum (Text)0.000

Lum (Bg)1.000