​​Why the Seats and Curtains in Theaters are Red in Colour?

There is scientific reason behind it. Red is the first colour that is lost to our sight in low-light conditions, which thus makes the Surroundings seem black and unobtrusive when watching a Movie or performance and The red Theatre Curtain is typically remembered and used because it best allows a Spotlight to show on stage Different coloured curtains would absorb the light, Moreover, in previous years, Red Fabric showed fire retardants the least.