I heard that it was a marketing strategy from the company. They thought that she looked too bridal because of the original white, so they decided to make it powder blue for the merchandising, giving Aurora the pink one, instead of the blue that she wore most of the movie. It is really white and grayish and silver. I don't know how people who do see the movie don't realize that! Is on the scenes with low light that it was painted blueish for the darkness/shade effect.