Answer:
Red color
Step-by-step explanation:
The daymark are of different shape and color. However, a particular shape of daymark is associated with a specific color only.
For example - triangle-shaped daymark are of red color while square shaped day mark are of green color.
The red color of daymark is equivalent to nuns while the green color of daymark is equivalent to cans.
The red color signifies the correctness or righteous course while one is returning from open waters or heading upstream.