Newcomen Street and Borough High St was Pink and Red in 1900.
I was hoping for a vicious criminal element.
BLACK: Lowest class. Vicious, semi-criminal.
DARK BLUE: Very poor, casual. Chronic want
LIGHT BLUE: Poor. 18s. to 21s. a week for a moderate family
PURPLE: Mixed. Some comfortable others poor
PINK: Fairly comfortable. Good ordinary earnings.
RED: Middle class. Well-to-do
YELLOW: Upper-middle and Upper classes. Wealthy