Is it white and gold or blue and black? The truth behind the dress debate. CooperVision Optical illusion: Dress colour debate goes global BBC News 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 Historic dress at the Tower of London Have you seen the beautiful dress, tabard and uniform currently on display in the Jewel House? Here's more about them On loan Why people see #thedress (the dress) differently Optometrist Explains