Dreams in color?

I've never heard that humans dream in black and white. Generally, I think your dreams resemble your reality. If you have been blind from birth, you do not see any images in your dreams, as your brain has no recording of such things to display. I suspect if you are color blind, your dreams would similarly only show images your brain has references for, so they would not be in color. But I think only 1-2% of humans are color blind.