A WebAIM tool for checking foreground and background color contrast in RGB hexadecimal format or with a color picker. It reports a contrast ratio and WCAG AA and AAA pass/fail states for normal text, large text, graphical objects and user interface components. It also functions as a basic API when &api is appended to a permalink.
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Colour Contrast Checker is a web tool that checks the contrast between different colour combinations against WCAG standards. It displays pass results for normal and large text and provides background and foreground colour values with copy options.
Color Designer is a web tool collection for visual color work. The tools list includes a Palette Generator, Gradient Generator, and Color Name Finder, along with a Color Palette Builder, Color Mixer, Color Wheel, Color Converter, Image Color Picker, Random Color Generator, and Color Contrast Checker.
Coolors is a color palette generator for creating and browsing color schemes. It provides tools including an image picker, contrast checker, palette visualizer, color picker, and Tailwind color preview. Palettes can be organized into projects and exported, with access across web, apps, and plugins.
Design.dev offers free generators for AI coding agent configuration files, copy-paste UI templates, and front-end tools for directing AI agents and verifying their output. It includes browser feature detection, a color contrast checker, an image optimizer, and email newsletters.
Realtime Colors is a web tool for visualizing color palettes and fonts on a real website. It stores the selected colors, includes a contrast checker, and allows exporting in formats such as .zip, .png, CSS and SCSS. The source also lists a Figma plugin and VS Code.