Contrast Checker - WebAIM
Use our link contrast checker to evaluate links that are identified using color alone. This tool also functions as a basic API. Simply append &api to any permalink to get a JSON object with the contrast ratio and the AA/AAA pass/fail states. For example: https://webaim.org/resources/contrastchecker/?fcolor=0000FF&bcolor=FFFFFF&api.
Color Contrast Checker - Coolors
Calculate the contrast ratio of text and background colors.
Contrast Checker - Adobe Color
Make sure your color choices are as accessible as possible by checking the contrast ratio of your background and text colors.
Colour Contrast Checker
Check the contrast between different colour combinations against WCAG standards.
Contrast Color Finder | Accessibility Color Checker - ArtyClick
ArtyClick Colors helps you to achieve a desired level of contrast between two colors, based on the WCAG 2 guidelines. You can use this tool to modify one or both of the colors until they meet the contrast ratio for a certain rating, such as AA or AAA.
Contrast Finder, find correct color contrasts for web accessibility …
Contrast-Finder is a tool which computes the contrast between two colors (background, foreground) and checks if the contrast is valid. When the contrast is not valid, the main target is to suggest some correct colors contrasts.
Contrast Ratio: WCAG Color Contrast Checker
Check the contrast ratio between your website’s background and text colors using this free tool, designed to meet WCAG guidelines
Color Contrast Checker for WCAG & APCA. Analyse, preview and get color ...
The Polypane color contrast checker checks against values defined by the WCAG 2 (Web Content Accessibility Guidelines) or APCA (the Accessible Perceptual Contrast Algorithm). WCAG give a formula to calculate the contrast, ranging from 1 (no contrast) to 21 (black on white).
Clear contrast | Color contrast checker
Clear contrast is a color contrast checker. Input foreground and background colors and this tool calculates the contrast between them in a ratio format based on the Web Content Accessibility Guidelines (WCAG) .
Color Contrast Checker
Checks the contrast of your color design based on Web Content Accessibility Guidelines (WCAG) 2.0.