Color Illusion Dress Black And White Perception Black Gold Dress Illusion The Dress": Why People See Blue and Gold Dress: Understanding the Optical Illusion Yellow Dress Original Gold And White Black And Blue Optical Illusion: Dress Colour Debate Goes Global 10 years since THE DRESS blew up Internet. Two thirds of people saw white and gold. Its an optical illusion caused by weird lighting and an overexposed background. It Is actuallylly blue and black.