[Brian Charles] “Depends on what other colors are present in the video. Green and blue are the most common colors to key against because human skin tones (no matter what race) are unaffected.”
Yes. I’d add that the background had better appear highly saturated to the camera. It may be pink paper, but if you don’t light it so it looks like a saturated pink (magenta), you’ll get grays in it which will start to blend with grays in your subject.
But for Caucasian and other light-skinned people, it’s a very bad idea. For dark-skinned people, it’s risky. Unless you’re shooting green or blue objects on the paper, don’t use it.