What color is this dress?

[Katipan]

It's just overexposed.

http://www.today.com/health/dress-bl...why-2D80518444

In this case, it’s probably because the image is overexposed, experts said.

“Based on what I have been able to gather from the internet, the image is of a blue/black dress that has been significantly overexposed resulting in its general white/gold impression,” says Mark Fairchild, director of the Program of Color Science at the Rochester Institute of Technology.

“The blue and black are reflecting enough light to scale up to white and gold with the overexposure. What little you can see of the background shows this overexposure (and that overexposure has been digitally enhanced in some versions floating around the internet).”

OH OH OH

“The second, and more important explanation, in this case, is through a perceptual mechanism we call ‘discounting the illuminant’. Humans perceive object colors based on the light coming from the object and their understanding of the illumination falling on the object. If we are tricked somehow and make the wrong interpretation of illumination then we perceive the colors of objects incorrectly.”

You people don't understand light.