How are can buoys designated?

Buoys are designated using a combination of colors, shapes, and markings to convey specific information to mariners. Commonly, they are painted in red and green to indicate safe passage and navigation channels, with red typically marking the right side when entering a harbor. Additionally, buoys may have numbers, letters, or specific symbols to provide further identification or indicate particular hazards. Some buoys are also equipped with lights or sound signals to enhance visibility and communication, especially in low-light conditions.