《南齐书·列传·卷二十三》
依照《晋令》，公府长史要穿朝服，宋大明以来穿红衣服。
《晋令》，公府长史著朝服，宋大明以来著朱衣。
According to the Jin Laws, a chief minister of state should wear a court uniform. Since the Daming period of the Song dynasty, they had been wearing red clothes.