Some flag facts about the flag of France:

Tricolour design featuring three vertical bands of blue ( hoist side ), white and red
Known as the French Tricolour or the Tricolour
Blue and red are the traditional colors of Paris. Blue is identified with Saint Martin and red with Saint Denis
Blue and red cockades on hats were used by the Paris militia at the storming of the Bastille in 1789
White had been featured as a prominent color on Franch flags and described by Lafayette as the “ancient French colour”
White was added to the revolutionary colours of the militia to nationalize the design, creating the tricolor
The colours may also represent the clergy ( white ), the nobility ( red ) and the bourgeoisie ( blue ), as well as symbolize freedom ( blue ), equality ( white ) and brotherhood ( red )
Officially adopted on July 1830, used as Napoleon Army flag in 1812