KateMiddleton , the Princess of Wales, brought the razzle dazzle in gold at Windsor Castle's State Banquet. Her shimmering Emilia Wickstead gown channeled both Queen Letizia's dazzling white and silver look from the Moroccan The White and Gold (No, Blue and Black!) Dress That Melted the Internet The New York Times About Catherine Gee Marie Antoinette Catherine Walker The actual dress was black and blue. The confusion came from how lighting and color perception tricked people's brains, making some see it as white and gold. It became a viral example Mystery Color Solved For Viral Optical Illusion Dress YouTube