Where did the terms White and Blue Collar come from? What do they imply nowadays?

Question

Plus is there such a thing as Red Collar?

In: Other

Answer 1

It comes from what the workers would be wearing. White collar workers would be wearing white shirts, e.g. they’re office workers, while blue collar workers would be wearing a boiler suit or a denim shirt, e.g. manual labour or factory worker. Since nobody wore a red outfit there’s no such thing as red collar.