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Build colour tools with JavaScript objects, conversions and gamut controls.

Generate a chosen number of shades and copy their values.

Work with colour spaces and colour relationships in Go.

Use colour-science tables with explicit sampling, metadata and citations.

Find official colour-management specifications, registries and technical resources.

Build an eleven-step scale and export variables for a web project.

Edit a colour system in perceptual coordinates and copy design tokens.

Control gradient colour positions and the transitions between them.

Bring an existing set of colours together with a shared tint.

Build CSS gradients while exploring different colour spaces.

Find limited palettes and move their colours into a pixel-art editor.

Searchable themed illustrations with style and colour filters

Choose colours with saturation scaled to the available RGB range.

Choose numbered shades whose separation indicates minimum contrast.

Build measured colour profiles with a documented command-line toolkit.

Choose scientific colour maps to match the structure of your data.

Share colour configurations and transforms across visual production tools.

See curated palettes applied to page elements and copy their hex codes.

Adjust CSS colour pairs and inspect their changing contrast ratio.

Browse compact four-colour combinations with visible hex values

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

See how a colour pair performs for different text sizes.

Turn a known web page URL into Markdown or structured content for search and language-model workflows.

CC0 photography with subject and colour browsing