Step 1 : Introduction to the question "What color is displayed on the starboard side of a boat?"
...When looking forward, toward the bow of a ship, port and starboard refer to the left and right sides, respectively. In the early days of boating, before ships had rudders on their centerlines, boats were controlled using a steering oar. Most sailors ...The term starboard derives from the Old English steorbord, meaning the side on which the ship is steered. Before ships had rudders on their centrelines, they were steered with a steering oar at the stern of the ship and, because more people ...
Step 2 : Answer to the question "What color is displayed on the starboard side of a boat?"
Starboard is a nautical term which refers to the right side of a ship as perceived by a person on board facing the bow (front). At night, the starboard side of a vessel is indicated with a green navigation light. Conversely, port is the left-hand side of a vessel or aircraft, facing forward and indicated with a red navigation light. Since port and starboard never change, they are unambiguous references that are independent of a mariner’s orientation, and, thus, mariners use these nautical terms instead of left and right to avoid confusion.