export declare function hexFromRgba(rgba: string, opaque?: boolean): string;
export declare function argbFromRgba(rgba: string, opaque?: boolean): number;
export declare function addAlphaToArgb(argb: number, alpha: number): number;
/**
 * Utility methods for hexadecimal representations of colors.
 */
/**
 * @param argb ARGB representation of a color.
 * @return RGBA Hex string representing color, ex. #ff0000FF for red.
 */
export declare function hexWithAlphaFromArgb(argb: number): string;
export declare function getComputedColor(color: string): string;
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