What was the name of the blue dress in the 1970s?

In the 1970s, blue clothes were called the blue ocean. According to relevant data, in the 1960s and 1970s, China people's clothes were monotonous in color and style. Everyone was the same green military uniform, gray tunic suit and blue liberation suit, which was described as a blue ocean. In the early 1980s, wearing frog glasses and bell-bottoms became a fashion in the streets. Later, various fashion clothes such as Hong Kong pants and tuxedos emerged one after another. In the 1970s, it was a fashion for men to wear high heels.