Royal Blue Mermaid V neck Long Prom Dresses MP693 Musebridals Is The Dress blue and black or white and gold? The answer lies in vision psychology Psychology The Guardian This explains how the blue black white gold dress illusion was possible. But it doesn't explain why some people saw it one way and some saw it the other, and no one seemed to see The white and gold dress, and the illusion of free will Felipe Contreras Is The Dress blue and black or white and gold? That question is now 10 years old. Here's how it all started and why different people see different things.