In inland waters, an all-around light may be which color?

An all-around light on vessels is used to indicate their presence and navigational status to other vessels. In the context of inland waters, all-around lights are typically required to be white, sometimes with additional color specifications for certain contexts or types of vessels. White light is universally accepted as a signaling color for navigation and can be seen from all directions, making it ideal for an all-around light, which serves the purpose of illuminating the entire surrounding area around the vessel.

While specific colors like yellow may be used under certain regulations or by particular vessels, the most standard and widely recognized color for all-around lights is white, particularly in inland navigation where safety is paramount.

Other options with colors like red, green, or combinations thereof are not correct in this context, as they pertain to specific navigational lights that represent different meanings depending on a vessel's orientation or operations. Having a fundamental understanding of the significance and use of all-around lights enhances navigational safety and compliance with maritime regulations.