What does a blue hard hat signify during deck evolutions?

A blue hard hat is specifically designated for line handlers during deck evolutions. This color coding is part of a system used to quickly identify roles and responsibilities on deck, enhancing communication and safety among the crew. Line handlers are crucial in operations involving securing or manipulating lines and rigging, which are pivotal during various maritime activities. Having a distinctive color for their hard hats allows for easy identification, ensuring that the entire team can recognize who is responsible for these critical tasks at a glance, thereby facilitating safer and more efficient operations.