The main color of the fifth set of RMB banknotes is red for 100 yuan, green for 50 yuan, brown for 20 yuan, blue-black for 10 yuan, purple for 5 yuan, and olive green for 1 yuan.

Extended information: The fifth set of RMB will be issued after September 28, 1999.

Since the reform and opening up, with the sustained, healthy and rapid development of the socialist market economy, society's demand for cash has also increased.

The design and printing of the fourth set of RMB were limited by the conditions at the time, and there were some shortcomings. For example, the simple anti-counterfeiting measures were not conducive to the anti-counterfeiting of RMB; the lack of machine readability was not conducive to automated banknote processing, etc.

All these require the timely issuance of a new version of the RMB.