/**
 * Converts a color to an `rgba` color string.
 *
 * ```js
 * toRgba('midnightblue'); // 'rgba(25, 25, 112, 1)'
 * ```
 *
 * @param color The input color.
 * @returns An `rgba` color string.
 */
declare function toRgba(color: string): string;
export default toRgba;