/**
 * Convert a color name to a hex value
 * @param colorName - The color name to convert
 * @returns The hex value of the color
 */
export declare function colorNameToHex(colorName: string): string | null;
/**
 * Normalize a hex value
 * @param value - The hex value to normalize
 * @returns The normalized hex value
 */
export declare function normalizeHex(value: string): string;