Why does blue lips affect your fortune?

There is the Azure Dragon on the left and the White Tiger on the right. The color blue represents courage. A blue face may indicate a gloomy and depressed mood. Generally speaking, when people are in extremely cold conditions, their lips may turn purple and their face may turn blue. Or when people feel scared when encountering some major crisis, their faces may also turn blue. Blue can be said to be both an auspicious color and a depressing color. So why do lips turn blue? What fortunes will be affected? Let’s take a look at the physiognomy column.