Science explains why people can't agree on the color of this dress CBS News Black And Blue Dress Color Debate Ten years ago, a photo of a dress posted on Tumblr sparked a massive debate: was it blue and black or white and gold? Millions argued online, and even celebrities joined in. 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 so we know the dress was black and blue BUT that's not what i'm here to discuss : r opticalillusions 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