"Green is often used as the background color behind the scenes in television, film, and theater because it provides a strong contrast to human skin tones, which are typically warm colors.
This makes it easy to digitally remove the green and replace it with another image or video footage using chroma keying or green screen technology.
Green is also a popular choice because it is highly saturated, making it easier for the camera to pick up and separate from other colors. However, other colors such asblue andgrey can also be used depending on the situation."