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GitHub’s product and brand interface design system

Create device-specific colour profiles and check display consistency.

Explore photograph-based palettes with copyable hex colours and related combinations.

Add a configurable colour picker to ordinary web input fields.

Choose a React colour picker or compose one from building blocks.

Outline and solid interface icons ready to copy as SVG or JSX.

Browsers, CSS and the work of building web interfaces

A Tailwind design system separating visual and interactive layers

Generate interface themes from target contrast ratios and colour scales.

Extract image palettes with sampling, crop and colour-space controls.

Compare colour pairs interactively or check a complete palette in code.

Build colour scales and preview their roles in interface layouts.

Add a jQuery colour control with palettes, transparency and saved choices.

Change a colour matrix and see how it transforms an image.

See how traditional Sass colour adjustments transform a starting swatch.

Search palette ideas by theme or hex value and export the colours

NAV’s interface components and practical product guidance

Cycle through palettes with adjustable hue, lightness and interpolation.

AI icon generator that turns short text prompts into app icons in under a minute.

View text contrast through different vision and lighting simulations.

Compare a text and background pair with editable colour values.

Attach a dependency-free colour popup to a page element.

Inspect a full-screen colour-vision simulation across applications.

Browse official RAL colour families, codes and names.