palettd

palettd is a color palette image generator for designers and developers. It creates brand palette boards in SVG or PNG, with the stated use cases of design systems, style guides, and documentation.

The tool accepts hex, RGB, RGBA, HSL, and HSLA color inputs. It can automatically name colors using perceptual matching with about 200 named colors, and it selects text colors automatically so each swatch keeps optimal contrast. palettd also produces identical output from the same inputs, supports use without a network connection, and is described as suitable for CI/CD pipelines.

It is delivered as a CLI and through a hosted API. The quick start instructions show global installation via npm and use through npx without installation. The site also says it runs on Windows, macOS, and Linux, and requires Node.js 20 or later. A hosted API is available for generating palette images on the fly, with cached images for fast delivery. The site also includes a browseable palette gallery with curated palettes from designers worldwide, an upvote feature, and tools labeled Generate, Color Harmony, Shade & Tint, Color Mixer, Gradient, Random, Dark Mode, Material 3, OKLCH, Thematic, Analyze, Accessible Palettes, A11y Report, Color Blindness, Temperature, Contrast Grid, Color Distance, Compare, Convert, Color Converter, Export, Extract From URL, From Image, Utility, Name Finder, Sorter, Visualizer, Pantone, API, NPM, GitHub, and Open Source.

palettd is open source, released under the MIT License, and is built with Node.js by AlpineDigital / MPGE.