import type { number_percent } from '../../../types/number_percent';
import type { number_integer, number_positive } from '../../../types/number_positive';
/**
 * Converts HSL values to RGB values
 *
 * @param hue [0-1]
 * @param saturation [0-1]
 * @param lightness [0-1]
 * @returns [red, green, blue] [0-255]
 *
 * @private util of `@promptbook/color`
 */
export declare function hslToRgb(hue: number_percent, saturation: number_percent, lightness: number_percent): readonly [number_positive & number_integer, number_positive & number_integer, number_positive & number_integer];