Analyze a web page or portion of a web page for conformance with WCAG 2.0 Color Contrast requirements.

To test the color contrast according to WCAG accessibility requirements

Check the contrast between different colour combinations against WCAG standards

Better UI for Accessibility Developer Tools API

Quickly check and adjust contrast in realtime in your browser to meet WCAG 2.1 requirements.

Pick colors from your Web, compute contrast, get suggestions. Preview with challenged visions. Versatile Color Dev Extension Tool

Equalweb Google Chrome checker is a free automated auditing tool for WCAG 2.1 validation.

Check color contrast against Web Contrast Accessibility Guidelines (WCAG) level AA.

This Developer Tools extension allows you determine whether or not the color contrast on a site is WCAG 2.0 AA and AAA compliant.

kwcag 2.1.3 test

ウェブアクセシビリティの規格(JIS X8341-3/WCAG2.0)に対応しているかチェックするための簡易解析ツール

Makes FieldCX reports accessible to WCAG 2.X standards

Zmienia kontrast wyświetlanych stron na przyjazny dla osób słabowidzących.

Finds the optimal overlay values for sufficient WCAG contrast ratio between text and images.

Site accessibility check report in accordance with the WCAG 2.0 standard by the Accessibility Zone team