St. Louis uses a red flag with blue-and-white wavy bands converging near the hoist and continuing to the fly. A gold disk bearing a blue fleur-de-lis covers their meeting point.
Design structure
Two broad heraldic wavy bands enter from the upper- and lower-hoist corners, meet left of center, and continue as one band to the fly. The city code places a gold disk and blue fleur-de-lis over the confluence.
Display colors
HEX #C70F2E / reference renderingHEX #012773 / reference renderingHEX #F5DC0F / reference renderingMeaning
The joining bands represent the confluence of the Missouri and Mississippi rivers. The gold disk represents the city and the Louisiana Purchase. Its fleur-de-lis recalls the city’s French background and namesake, Louis IX of France.
Historical record
Theodore Sizer, a Yale University professor and herald, designed the current flag for the city’s 1964 bicentennial. Ordinance 52322 adopted the design that year, and its description remains codified as the official city flag.