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

Use the Mac colour panel with shortcuts, recent colours and palette export

Sample an image and copy colours in common design and code formats.

Compare colour references, build complements and convert colour data.

Find device and logo mockups with editable layers and effects.

Let users choose from a visible set of colours with one click.

Browse named web colours, related swatches and downloadable colour icons.

Browse named CSS colours beside their values and aliases.

Related illustration families with editable SVG and ready-to-place PNG files

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

Five-colour palettes drawn from named paintings and their artists

Convert colours and generate data scales through a JavaScript API.

Convert colours between spaces and control their CSS output.

Explore historical colour names through swatches and natural examples.

Build hosted API simulations to test applications without waiting on live dependencies.

A self-hosted browser notebook that keeps Markdown notes, links, comments, and history together.

Deploy applications to your own servers through a Ruby task workflow that coordinates remote commands over SSH.

A self-hosted Markdown notebook with collaboration, search, and note history.

Render responsive charts from JavaScript datasets on an HTML canvas.

A Markdown vault for linked notes, daily writing, and optional cloud sync.

A Java SQL database that can run in your application or as a separate server.

Native Markdown notes for Mac and iPhone, stored in files you can open elsewhere.

The Dart SDK supplies libraries and command-line tools for Dart web, server, and command-line apps.

Swiss digital banking with bill tools and controlled document delivery