It’s a dress that memes are made of.
It all started when Tumblr user swiked uploaded a photo of a poorly lit bodycon dress.
“Guys please help me - is this dress white and gold, or blue and black?” she wrote. “Me and my friends can’t agree…”
The debate reaches a fever pitch when celebrities such as Taylor Swift and Mindy Kaling weigh in on the matter.
Why can't we all agree on the color of the dress (it's definitely light blue and gold)? Wired.com took a look at the science behind the polarizing interpretations.
Whether you see black and blue, or gold and white depends on how your brain interpolates the light penetrating your eyes. You can chalk it up to wavelength and context.
However, if you happen to be a member of team black and blue, rejoice. It turns out that the dress is indeed blue with black lace details. Adobe agrees.