if your in the first room it involves the emblem between the two cabinets.
spoiler for the code:l̶i̶g̶h̶t̶ ̶b̶l̶u̶e̶ ̶t̶o̶ ̶g̶r̶e̶e̶n̶,̶ ̶g̶r̶e̶e̶n̶ ̶t̶o̶ ̶p̶u̶r̶p̶l̶e̶,̶ ̶p̶u̶r̶p̶l̶e̶ ̶t̶o̶ ̶r̶e̶d̶,̶ ̶r̶e̶d̶ ̶t̶o̶ ̶b̶l̶u̶e̶,̶ ̶b̶l̶u̶e̶ ̶t̶o̶ ̶ ̶l̶i̶g̶h̶t̶ ̶b̶l̶u̶e̶