Look at the COLREGS.
Part C Lights and Shapes (Rules 20-31)Rule 20 states rules concerning lights apply from sunset to sunrise.
Rule 21 gives definitions.
Rule 22 covers visibility of lights - indicating that lights should be visible at minimum ranges (in nautical miles) determined according to the type of vessel.
Rule 23 covers lights to be carried by power-driven vessels underway.
Rule 24 covers lights for vessels towing and pushing.
Rule 25 covers light requirements for sailing vessels underway and vessels under oars.
Rule 26 covers light requirements for fishing vessels.
Rule 27 covers light requirements for vessels not under command or restricted in their ability to manoeuvre.
Rule 28 covers light requirements for vessels constrained by their draught.
Rule 29 covers light requirements for pilot vessels.
Rule 30 covers light requirements for vessels anchored and aground.Rule 31 covers light requirements for seaplanes
Red by red is not a pernitted arrangement.
http://www.bluemoment.com/colregs.html