Flag of Boston
| Use | Civil flag |
|---|---|
| Proportion | 7:10 |
| Adopted | January 29, 1917 |
| Designed by | Boston Columbus Day Committee |
The flag of Boston consists of a sky blue field and the seal of the city of Boston, Massachusetts, United States, in the center. The flag is sometimes flown in a darker shade of blue, more of a turquoise. It was designed in 1913 and adopted by the Boston City Council on January 29, 1917.