Question: Is there any particular colour that is best for invoking peace?

Sri Chinmoy: Among the colours, blue is the best in order to invoke peace because blue indicates Infinity. When one has Infinity, then he automatically invokes peace. There is no special colour; each colour has peace, but one can invoke peace best with blue.

From:Sri Chinmoy,AUM — Vol.II-2, No. 4, 27 April 1975, Vishma Press, New York, 1975
Sourced from https://srichinmoylibrary.com/aum_95