Passing for Black
There was a scene where Irene (Tessa Thompson) says : It's easy for a Negro to pass for White. I'm not sure it would be so simple for a White person to pass for Colored.
In the 1930's my wife's aunt, who was quite white, was traveling from Miami to Detroit. She had acquired a deep tan from the Florida sun. She was barred from staying at a motel, because the desk person thought she was Colored