Which buoy color combination typically represents a safe passage through an area with hazards?

The combination of yellow and black on a buoy is commonly used to indicate caution and the presence of hazards in the water. This color scheme is often employed for warning beacons, marking areas where navigational dangers may exist, such as obstructions, underwater rocks, or changing conditions. By utilizing yellow and black, mariners are alerted to proceed with caution as they navigate through these areas, indicating that they should be aware of potential risks.

In contrast, red and white typically indicate safe passage through navigable waters rather than highlighting hazards. Green and red often signify lateral markers that help to define navigable channels but do not convey the same cautionary message as yellow and black. A solid green buoy can indicate a safe channel, however, it doesn't provide explicit warning about nearby hazards. Hence, the color combination of yellow and black stands out as the most effective signal for caution in the presence of maritime dangers.