getHex( colorSpace = SRGBColorSpace ) {

		ColorManagement.workingToColorSpace( _color.copy( this ), colorSpace );

		return Math.round( clamp( _color.r * 255, 0, 255 ) ) * 65536 + Math.round( clamp( _color.g * 255, 0, 255 ) ) * 256 + Math.round( clamp( _color.b * 255, 0, 255 ) );

	}
Returns the hexadecimal value of this color.

@param {string} [colorSpace=SRGBColorSpace] - The color space.
@return {number} The hexadecimal value.