I've been thinking about "the dress" for 10 years. Here's what I've learned. A Line Prom Dress Royal Blue and Black, Evening Dress, Formal Dresses, DressesTailor A Line Ombre Blue And Black Homecoming Dresses, One Shoulder Short Prom Dresses, Homecoming Dresses 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