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0.2.1 Jan 6, 2022
0.2.0 Jul 29, 2021
0.1.4 May 4, 2021
0.1.0 Feb 27, 2021

#184 in Data structures

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160 downloads per month
Used in 8 crates (5 directly)

MPL-2.0 license

6.5K SLoC

UX Primitives

API Docs Crates.io Code coverage Tests MPL-2.0 licensed Gitter chat loc

UX Primitives is a powerful library for working with color and graphics. It is one of the main building blocks of the Angular Rust framework. This library is well organized and easy to use.

The library provides the basic building blocks for creating games and regular applications. It contains behavior definitions for game applications and basic structures.

The basic fundamental entity for graphical applications such as games is color. This library contains sufficient functionality for working with color, including storage, processing and conversion between different color spaces.

It also provides support for multiple color schemes and contains the OpenColor palette for the convenience and higher quality of your applications.

Quick Start

Add UX primitives to your project using Cargo-edit or by editing the Cargo.toml file:

cargo add ux-primitives

Basic usage

use primitives::prelude::*;

use primitives::foundation::{colorschemes::Tetrad, colorspace::HslColor};

fn main() {
    // Get Palette Color
    let base = color::TEAL_9;

    println!("Base color {}", base.to_hex_string());

    println!("Lighten {}", base.lighten(10.0).to_hex_string());

    println!("Darken {}", base.darken(10.0).to_hex_string());

    println!("Hue Adjusted {}", base.adjust_hue(90.).to_hex_string());

    println!("Complement {}", base.complement().to_hex_string());

    println!("Inverted {}", base.invert().to_hex_string());

    println!("Saturated {}", base.saturate(50.).to_hex_string());

    println!("Desaturated {}", base.desaturate(50.).to_hex_string());

    println!("Grayscale {}", base.grayscale().to_hex_string());

    let hsl: HslColor = base.into();

    println!("{} {}", base, hsl);

    // Generate color scheme
    let scheme = Tetrad::new(base);
    // You can adjust color scheme parameters before get colors

    for idx in 0..scheme.num_of_colors() {
        match scheme.get_color(idx) {
            Some(col) => println!("Color: {}", col.to_hex_string()),
            None => println!("No color")


  • Graphic abstraction for native and web canvas implemented in UX Animate
  • The most commonly used color spaces: RGB, RGBA, HSL, HSV, LAB, CMY, CMYK.
  • Color conversion: RGB to HSL, etc.
  • Support for color quantization to bring the color closer to the palette.
  • Palette Open Color (4.5 thousand stars)
  • Generation of color scheme according to color theory.
  • Basic traits for interactive applications (WIP).

Color scheme for UI design

UX Primitives contain powerfull palette for easy of use and more professional look for your applications. UX Primitives use the Open Color scheme optimized for UI like font, background, border, etc.

  • All colors shall have adequate use
  • Provide general color for UI design
  • All colors will be beautiful in itself and harmonious
  • At the same brightness level, the perceived brightness will be constant

Learn More



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Angular Rust is a community effort and we welcome all kinds of contributions, big or small, from developers of all backgrounds. We want the Angular Rust community to be a fun and friendly place, so please review our Code of Conduct to learn what behavior will not be tolerated.

New to Angular Rust?

Start learning about the framework by helping us improve our documentation. Pull requests which improve test coverage are also very welcome.

Looking for inspiration?

Check out the community curated list of awesome things related to Angular Rust / WebAssembly at awesome-angular-rust.

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Feel free to drop into our Gitter chatroom or open a new "Question" issue to get help from contributors. Often questions lead to improvements to the ergonomics of the framework, better documentation, and even new features!

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After reviewing the Contributing Code Guidelines, check out the "Good First Issues" (they are eager for attention!). Once you find one that interests you, feel free to assign yourself to an issue and don't hesitate to reach out for guidance, the issues vary in complexity.

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  • Documentation