Le Jia's theory is very similar to some foreign theories. In order to study the origin of personality chromatics, I made a simple search on the Internet. In fact, before Le Jia, many people had associated color with personality classification.

Le Jia, 1975 was born in Shanghai on May 6th, and his native place is Ningbo, Zhejiang. Chinese mainland, host and writer, founder of China Personality Color Research Center, founder of FPA Personality Color, lecturer and training tutor, visiting professor of Sydney Business School of Shanghai University, School of Management of Northwest University, Hohai University, Tsinghua Yangtze River Delta Research Institute, Shanghai Theatre Academy, Wuhan University and Sun Yat-sen University.