What color light indicates the starboard side of a vessel?

The color light that indicates the starboard side of a vessel is green. In maritime navigation, vessels are required to display specific colors of navigation lights to signal their position and direction to other boats, especially during nighttime or low visibility conditions. The starboard side, or right side when facing forward on the vessel, is designated with a green light. This helps other vessels identify the orientation of a boat and determine how to navigate safely around it.

In contrast, the port side of a vessel is indicated by a red light, providing a visual cue to help prevent collisions. The white light is typically used as a masthead light, and blue is not a standard color for navigation lights. Accurately understanding these colors is crucial for safe navigation on the water and is a key part of maritime knowledge that all boat operators should possess.