what colors does it comprise?
Red, white and blue
Flag of Ohio
 Its red, white, and blue elements symbolize the state's natural features and order of admission into the Union
what is the shape of the ohio flag called Triangular swallowtail who designed it? John Eisenmann
wiki:1873280
Flag of Ohio [SEP] Introduction
The Ohio Burgee is the official flag of the U.S. state of Ohio. It is a triangular swallowtail flag, the only non-rectangular U.S. state flag. Its red, white, and blue elements symbolize the state's natural features and order of admission into the Union. A prominent disc in the flag's triangular canton is suggestive of the state's name. The flag was designed in 1901 by John Eisenmann for the Pan-American Exposition and adopted in 1902. Before that, for nearly a century after statehood, Ohio did not have a legally authorized state flag. One unsuccessful proposal called for a design based on the state seal.