After Perkin’s discovery. Women who married were assumed to be virtuous so had no need of a display of white.
Victorian mourning stationery had black and silver edges to represent the purity of the unmarried. (Did marriage mean you were now not pure?)
HUGE COLOUR CODES IN THE ANCIENT WORLD (EYGYPT)
RED chaos and disorder – colour of the desert. red ochre, was obtained from the desert. Destructive fire and fury, used to represent something dangerous .The colour of the god Seth, the traditional god of chaos, and was associated with death – the desert where people were exiled or sent to work in mines.
BLUE the heavens, the dominion of the gods, as well as water, used for the hair of gods ( lapis lazuli, or the darkest of Egyptian blues) and for the face of the god Amun
Green fresh growth, vegetation, new life, and resurrection, the colour of the 'Eye of Horus healing and protective powers, and so the colour also represented well-being. To do 'green things' was to do behave in a positive, life affirming manner.
Black the colour of the life-giving silt left by the Nile the colour of Osiris the resurrected god of the dead,