Which color represents the port side of a boat in navigation lights?

In navigation lights, the color that represents the port side of a boat is red. This convention is critical for safe navigation, particularly in determining the direction of vessels during nighttime or low visibility conditions. When vessels are approaching each other, if one vessel sees a red light, it indicates that the other vessel is on its port side, meaning it is to the left when facing forward.

This visual signal is vital for maintaining proper right-of-way on the water. The use of standard colors ensures that all mariners can quickly and confidently identify the orientation of other vessels, thereby enhancing overall safety on the waterways.

In this context, white lights are used for navigation at all times and are typically found on the stern or masthead, while green lights represent the starboard side of the boat. Blue lights are not standard in navigation and are usually associated with specific types of vessels or situations, such as law enforcement or emergency service boats. Understanding the meaning behind these colors is essential for anyone operating a boat, as it helps in making informed decisions to avoid collisions and navigate safely.