IntroductionKontrast allows the user to check the contrast ratio between colors and determine if the result is suitable for people with color vision deficiencies. Users may select colors in a variety of ways, for example, by inputting the hex values manually, or by using the color picker tool to select any color value on their screen.
The contrast ratio check by this application is related to the difference in color between two objects that allows them to be distinguished. A contrast value of 21 indicates a perfect contrast (usually black on white) and a value of 0 indicates that the two colors are the same. The colors are checked against Web Content Accessibility Guidelines (“WCAG”).