Have you ever wondered why all the theatre seatings are red when you watch a movie? 

Ftseat theatre seating

This is because red is the first colour that people will not see when entering a low light environment. Therefore after the cinema turn out the lights, the red becomes invisible and our eyes instantly get used to the darkness. Besides, colour like dark red have a less reflection towards dim lights when cinema light is out.

Eyes are sensitive towards green at evening, other colour are diminishing in order as well. Red will be the first colour that being unrecognized by people. Therefore,red theater seats and red curtain are the popular choices for movie theatre. It will be invisible once the light is out, safe and will not influence the movie experience.

Besides, red can be easily recognized when the light is on and the audience can find their seats more easily.