As I heard, the only reason why is green used because it's not very common at least in clothing and stuff. You need a webcam and a streaming/recording program that can use chrome key.
If you're using
Open Broascaster (OBS), then you just have to add the Webcam as usual (with add Video Capture Device) and check that "Use Chroma Key" (on the left bottom as you can see)
and select the color you want, and maybe mess with the setting under that.
As in
XSplit,you have to right click your camera after you added then click on the "Color" tab, then you have two option,
Color Key and
Chroma Key.
XSplit makes a difference in using an actually Red/Green/Blue background. XSplit calls that
Chroma key, you just select the color from the
drop-down, and mess with the settings
But there's an other option as it is
Color Key. This is pretty much the same, but here you can select your wanted color (with the
Eyedrop Tool), so it can be pink, black, or brown, or anything else, but probably if you have a reg/green/blue background you should use
Chroma Key.
Hope this helps!
Also if you'd searched for this you've probably gotten the same results from google.
Or you could have tried messing with your broadcaster program. Just sayin'.