/**
 * Represents a color in RGB/HSX... space as an array of three numbers.
 * @typedef {[number, number, number]} ColorCoords
 */
export type ColorCoords = [number, number, number];
/**
 * Represents a color cube with exactly 8 RGB colors for RYB to RGB mapping.
 * The colors are ordered as: white, red, yellow, orange, blue, violet, green, black
 * @typedef {[ColorCoords, ColorCoords, ColorCoords, ColorCoords, ColorCoords, ColorCoords, ColorCoords, ColorCoords]} ColorCube
 */
export type ColorCube = [
    ColorCoords,
    ColorCoords,
    ColorCoords,
    ColorCoords,
    ColorCoords,
    ColorCoords,
    ColorCoords,
    ColorCoords
];
/**
 * Map storing historical and modern color cube definitions with their metadata.
 * @typedef {Map<string, {
 *   title: string,
 *   author: string,
 *   reference: string,
 *   year: number,
 *   cube: ColorCube
 * }>} CubesMap
 */
export type CubesMap = ReadonlyMap<string, {
    readonly title: string;
    readonly author: string;
    readonly reference: string;
    readonly year: number;
    readonly cube: ColorCube;
}>;
/**
 * Default RYB color cube based on Johannes Itten's chromatic circle (1961).
 * Contains 8 key colors in RGB space:
 * 1. White    - Base color, slightly warm [253/255, 246/255, 237/255]
 * 2. Red      - Primary [227/255, 36/255, 33/255]
 * 3. Yellow   - Primary [243/255, 230/255, 0]
 * 4. Orange   - Secondary [240/255, 142/255, 28/255]
 * 5. Blue     - Primary [22/255, 153/255, 218/255]
 * 6. Violet   - Secondary [120/255, 34/255, 170/255]
 * 7. Green    - Secondary [0, 142/255, 91/255]
 * 8. Black    - Shade [29/255, 28/255, 28/255]
 */
export declare const RYB_ITTEN: ColorCube;
export declare const cubes: CubesMap;