Hai Collection, Lower Volume Radical: Black (hēi) Page 1519, Entry 01 Guangyun: Pronounced yi (entering tone) Jiyun, Yunhui: Pronounced yi (entering tone) Guangya: Black. Also written as yi. Book of Han (Hanshu), Biography of Emperor Wen: He wore clothes of yi-te silk. Commentary: Ru Chun states: yi means blackish. Erya, Explanation of Heaven: When the Grand Duke Jupiter (Taisui) is in the ren position, it is called xuan-yi.