Green
bearing to principle vessel, abeam is a contact directly to port or to starboard (270/090)
Vessel control order
The vessel on the starboard quarter always has right of way. The vessel approaching on the port side has to give way.
Navigation lights, green starboard and red port. Masthead and stern lights should be white
A green light is on the starboard side of the vessel. So it may mean that the starboard side is directly facing you.
Red
Starboard, turn right!!!
The Vessel is turning to Starboard .
Generally they are masthead light, port and starboard steaming light and stern light. Others may be displayed depending on the length of the vessel and what duties it is carrying out.
They intend to pass starboard side to starboard side.
They intend to pass starboard side to starboard side.
They intend to pass starboard side to starboard side.