Denim and Seahawk

Denim and Seahawk. I bet that's not what they called it in 1923. I have Googled
seahawk blue and it only comes up with NFL team
Seattle Seahawks (their jerseys are described as seahawk blue), and a search on
denim blue brought up Levi's. No shit Sherlock. Looks like we are going all Yankee Doodle.