How to Use Colored Output in Rust CLIs (colored, owo-colors)

Use the anstyle crate to apply ANSI color styles to your CLI output, matching the approach used in the Rust compiler's highlighter module.

use anstyle::{AnsiColor, Color, Style};

fn main() {
    let style = Style::new().fg_color(Some(Color::Ansi(AnsiColor::Green)));
    println!("{style}This text is green{style:#}");
}

Add anstyle = "1.0" to your Cargo.toml dependencies.

Using colored output in Rust CLIs adds color to your command-line text using standard terminal codes, making errors or important messages stand out. It works like a highlighter that marks specific words in a document so they are easier to read. You use it whenever you want to make your program's output more visually distinct.