Traditional Culture Encyclopedia - Traditional culture - Why are all the work clothes on the construction site blue?

Why are all the work clothes on the construction site blue?

The century-old butcher's overalls answer for you:

Because blue is not dirty, many front-line workers' work will lead to some dust on their clothes. Repeated washing and replacement of clothes for a long time will definitely fade, so the factory's limited consideration in customizing factory clothes is practicality.