Accessibility Color Tool. Testing for Color Blindness Accessibility. The Colour Contrast Analyser is compatible with the Web Content Accessibility Guidelines version 2 WCAG 21.
This tool should help you visualize an entire palette of all color combinations with accessibility. The Accessibility Developer Guide Colour Contrast Analyser is a tool that measures the contrast among two colours and automatically assesses the adherence against the Web Content Accessibility Guidelines. Choose a foreground color by pointing the mouse over the wheel or the vertical grey gradation strip and click or if you have a touch screen just touch them.
It will then alert you to whether you are passing or failing for that particular standard so you can make changes accordingly.
Tanaguru Contrast Finder allows you to choose the contrast that improves the accessibility of your website. Tanaguru Contrast Finder allows you to choose the contrast that improves the accessibility of your website. Then click the Background button and choose a background color the same way. According to the National Eye Institute there are three main kinds of color blindness based on photopigment defects in the three different kinds of cones that respond to blue green and red light.