rand_oklab

Generate random oklab(...) colors with configurable bounds.

Install

cargo add rand_oklab

Optional serde support:

cargo add rand_oklab --features serde

Quick start

use rand_oklab::random_oklab;

let color = random_oklab();
let formatted = color.to_oklab_string();

assert!((0.0..=1.0).contains(&color.lightness));
assert!(formatted.starts_with("oklab("));

Custom ranges

use rand_oklab::{random_oklab_in, OklabRange};

let range = OklabRange::new(0.2, 0.8, -0.2, 0.2, -0.2, 0.2, 0.2, 0.8).unwrap();
let color = random_oklab_in(range).unwrap();

assert!((0.2..=0.8).contains(&color.lightness));
assert!((0.2..=0.8).contains(&color.alpha));

Seeded deterministic generation

use rand::rngs::StdRng;
use rand::SeedableRng;
use rand_oklab::random_oklab_with_rng;

let mut rng_a = StdRng::seed_from_u64(42);
let mut rng_b = StdRng::seed_from_u64(42);

assert_eq!(random_oklab_with_rng(&mut rng_a), random_oklab_with_rng(&mut rng_b));

Caveats

• Values are sampled from numeric component ranges; they are not gamut-checked, contrast-checked, palette-aware, or perceptually uniform.
• to_oklab_string() returns stable crate formatting, not a full CSS serialization engine.