It is possible that the first jersey of a car is blue, so Chelsea has always used blue jerseys along the historical tradition. Now we call Chelsea the Blue Army.

As for why the first one is blue, there are many arguments, such as blue symbolizes freedom, the sky and so on.

Football is a sport with a long history, so the jerseys of many teams always keep certain characteristics, such as the red and black stripes of Milan, the blue and black stripes of Inter Milan, and the reds of Liverpool and Manchester United. ..