What color are navigation buoys that indicate danger?

Navigation buoys that indicate danger are colored yellow. This color is universally recognized as a warning signal on the water, indicating an area that may pose hazards to navigation, such as shallow waters, rocks, or other obstructions. Yellow buoys help boaters identify these dangerous areas more easily, enhancing safety on the water.

In contrast, red and green buoys are typically used in conjunction with navigational aids to indicate safe channels and directions. Red buoys usually mark the right side of a channel when returning from the sea, while green buoys mark the left side. Blue is not a standard color used for navigation buoys and generally serves other purposes in maritime contexts, such as marking information or recreational areas.