Annoying Color Pallette won't go away

At the top left of my unity program is this annoying little color palette window that won’t go away. I can’t right mouse click and close it. I can’t even click and drag it towards the center of the screen in case there was an close button. It is currently blocking my file, edit and assets tabs. I have to minimize unity to go to one of those three.

Has this ever happened to someone before and if so, how did you get rid of it?

word, u guys cant help me out

Restart Unity?

Window->layouts->revert factory settings is an all else fails approach to get rid of it.