/**
 * Convert hex to RGB.
 * @param hex - The hex value to convert.
 * @returns An object containing the RGB values.
 */
export declare const hexRgb: (hex: string, alpha?: number) => string;
/**
 * Check if the hex value is valid.
 * @param hex - The hex value to check.
 * @returns True if the hex value is valid, false otherwise.
 */
export declare const isValidHex: (hex: string) => boolean;