President Way Kuo and the research team (IMAGE) City University of Hong Kong Caption (From left) Professor Li Han-Lin, President Way Kuo, Professor Bertrand M. T. Lin and Professor Fang Shu-Cherng developed an innovative colour system, C235, which unifies colours using prime numbers. Credit © City University of Hong Kong Usage Restrictions Image must be used with appropriate caption and credit. License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.