People are freaking out over what color the dress "really is".

Are they, actually? Or are they freaking out over what other people say it is?

If I saw only the text of the supposed controversy I would instantly diagnose it as a hoax for clickbait. There are colour constancy illusions, but I will not believe that this is one of them until I see two people actually taking opposite sides. However, that is socially impossible to achieve, because there will always be enough people to perversely take the opposite side for the lulz. The wording of the original Tumblr post, and the buzzfeed and Wired articles, deliberately encourage this.

What colours do you see in the dress in this picture? Not in any other picture, or the real dress, but this, the original picture that started it all. Feel free to experiment with different monitors and ambient lighting (but not editing the picture) and to give details in comments.