Flag of Dowagiac in Michigan. I vectorized the image from 	[1], which mentions that the design is free to use. Official colors of the flag are:
Green – HEX #008001 / RGB (0, 128, 1)
Blue – HEX #0A3161 / RGB (10, 49, 97)
Orange – HEX #FF7420 / RGB (255, 116, 32)
Own work
Dowagiac Economic Development Committee (original); vectorization by Flagvisioner