I'm not going to read any previous comments on this. I hate this picture and all conversations about it. The dress is blue and black. The exposure was correct when shot as seen in the correct photos of it. Someone altered the levels which screwed up the colors. In the original, the background isn't all blown out and white. I don't understand why anybody is making a big deal of this. It's not an optical illusion, it's a farked up photo.