import { RgbColor } from '../../meta/color';
/**
 * Returns a string value for the color. The returned result is the smallest possible hex notation.
 *
 * @example
 * background: rgb(255, 205, 100)
 * background: rgb({ red: 255, green: 205, blue: 100 })
 */
export declare function rgb(value: RgbColor | number, green?: number, blue?: number): string;