The world's most famous optical illusion turns 10 years old Creative Bloq How "The Dress" Became an Illusion Unlike Any Other Scientific American Here's why people saw the dress differently. The viral dress, known as "The Dress," appeared differently to people: some saw it as blue and black, while others saw it as white and gold. This difference is due to how our brains interpret the The Dress": Why People See White and Gold or Blue and Black