What color combination indicates an obstruction in navigation?

The color combination of white with black vertical stripes is designated to indicate an obstruction in navigation. This marking is used to alert boaters to hazards that may be located in the water, such as rocky outcrops, pilings, or other structures that could pose a danger to navigation.

Navigational aids are essential for safety at sea, and specific color codes help convey important information quickly and clearly. The black stripes against a white background provide high visibility and easily communicate the risk that lies within that area.

Other color combinations serve different purposes. For example, red with white stripes typically indicates a safe passage, while blue with green markings is used for information about controlled areas or limited entry zones. Yellow markings with diagonal lines usually indicate caution areas but do not specifically denote obstructions. Understanding these color codes is vital for safe boating and preventing accidents on the water.