Colors: Red, yellow, and blue
Meanings/Symbolism: The yellow star in the middle of the flag represents both the city of Chicago and the sun. The 6 points of the star represent the 6 regions of Cook County. The blue lines/rays radiating out from the points of the star represent the different lakes and rivers of the county. The 6 sections that are formed by those rays/lines also represent the 6 regions of the county.
Idealistically, the red represents love (think of the red associated, for example, with Valentine’s Day), but this is a broader type of love, not limited to romantic love. The red also represents power, strength, Midwestern values, morality, and a strong Midwestern work ethic. The blue lines/rays represent peace, calm, relaxation, and life. And the yellow represents clarity and hope.