๐จ Color palette generator from an image using WebAssesmbly and Rust
Last updated Apr 9, 2026
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README
๐จ Pigmnts
Pigmnts is a color palette creator from an image built using Rust. It uses the K-means++ clustering algorithm to select the most commonly occurring colors from the image.Pigmnts library is compiled to WebAssembly which allows for super-fast color palette extraction from an image on the web. The library can be found in the lib directory.
Pigmnts CLI
Pigmnts CLI is a tool designed to create color palettes from an image right on your terminal. It supports various image formats likeJPEG, PNG, GIF, WebP, TIFF along with external HTTP(S) image URLs. It provides a beautiful terminal output to preview the colors in the palette.
Pigmnts CLI comes with various output modes and provides on-demand data of the palette generated while maintaining high speeds.
Installing the CLI
CLI can be installed usingcargo and pigmnts-cli crate on crates.io
cargo install pigmnts-cli
Output modes
Default mode
The default mode displays the palette in a user-friendly way with a small preview and corresponding color codes in a tabular structure. This is meant for the common use of the CLI.
Quiet (or Silent) mode
This mode displays only the essential output without the intermediate logs. The output is in plain text format with each data item separated by:. This is meant for use in a pipeline where the output of the CLI is used as input for another process. It can be activated by the -q or --quiet flag.

Flags and options in the CLI
The following flags and options are supported by the latest release of the CLI.FLAGS:
-d, --dominance Enable dominance percentage of colors
-h, --help Prints help information
-x, --hex Enable Hex code output of colors
-s, --hsl Enable HSL output of colors
-l, --lab Enable L*AB output of colors
-q, --quiet Suppress the normal output [aliases: silent]
-r, --rgb Enable RGB output of colors
-n, --name Nearest name for the color
-V, --version Prints version information
OPTIONS: -c, --count <COUNT>... Number of colors in the palette
Examples of these flags
pigmnts pic-1.jpg -c 5 pic-2.jpg -c 8
pigmnts pic-1.jpg -rxdl
pigmnts pic-1.jpg --count 10 --name --hex
pigmnts pic-1.jpg pic-2.jpg -sxq
quiet mode.
Contributing
This repository is a Cargo workspace that includes the development of both core Pigmnts library and the CLI.Project Structure
- Pigmnts Library - development of the core library is in the
libdirectory. - Pigmnts CLI - root project is Pigmnts CLI that uses the Pigmnts library.
License
Pigmnts is MIT Licensed The dataset for color names used in Pigmnts CLI is taken from https://github.com/meodai/color-names๐ More in this category