What color is used to represent health hazards?

Health hazards are represented by the color blue in various safety and health contexts, including chemical labeling systems like the National Fire Protection Association (NFPA) label and the Globally Harmonized System (GHS) of Classification and Labelling of Chemicals. This color coding helps individuals quickly identify and assess the type of hazard they may come into contact with, which is crucial in maintaining safety in workplaces and environments where hazardous materials are present. By using blue to signify health risks, it allows workers and emergency responders to make informed decisions regarding appropriate precautions and protective measures.

In addition, blue is often associated with information and communication, which aligns with the need to convey critical safety information about health hazards clearly and effectively.