What is the name of the 90'S kids show with a blue bug wearing a red cowboy hat?

The show you're referring to is likely "Courage the Cowardly Dog." Although it features a pink dog as the main character, the blue bug with a red cowboy hat is likely a character from "The Tick," which also aired in the 90s. "The Tick" is known for its quirky characters and humor, fitting the description of a unique animated series from that era.