import { R as RandomSource } from './Types-CR0Pe5zY.js';

/**
 * Returns a full HSL colour string (eg `hsl(20,50%,75%)`) based on a index.
 * It's useful for generating perceptually different shades as the index increments.
 *
 * ```
 * el.style.backgroundColor = goldenAgeColour(10);
 * ```
 *
 * Saturation and lightness can be specified, as numeric ranges of 0-1.
 *
 * @param saturation Saturation (0-1), defaults to 0.5
 * @param lightness Lightness (0-1), defaults to 0.75
 * @param alpha Opacity (0-1), defaults to 1.0
 * @returns HSL colour string eg `hsl(20,50%,75%)`
 */
declare const goldenAngleColour: (index: number, saturation?: number, lightness?: number, alpha?: number) => string;
/**
 * Returns a random hue component (0..359)
 * ```
 * // Generate hue
 * const h =randomHue(); // 0-359
 *
 * // Generate hue and assign as part of a HSL string
 * el.style.backgroundColor = `hsl(${randomHue(), 50%, 75%})`;
 * ```
 * @param rand
 * @returns
 */
declare const randomHue: (rand?: RandomSource) => number;

export { goldenAngleColour as g, randomHue as r };