What was Zhao Kuang Yins favorite color and was his nickname Confucius, if not who was Confucius?

Zhao Kuangyin is the first emperor of the Song Dynasty and his favorite color is not clear now. Confucius is not the nickname of Zhao. Confucius is a Chinese teacher, great educator, politician, and philosopher of the Spring and Autumn period of Chinese history and has a great influence to Chinese culture.