Which color of mobile phone case is lucky?

Blue. It is good luck to have a blue mobile phone case. Blue symbolizes loyalty, and so do violets, Veronica trees and forget-me-not flowers in life. In addition, blue also symbolizes distant dreams, mysteries and dreams, represents reason and calmness, can calm people down, face things rationally, help to improve work efficiency, help to enhance career fortune and bring good luck to people. Because blue is a deep, mysterious and dreamy color.