Which color represents flammable materials on the NFPA label?

The color that represents flammable materials on the NFPA (National Fire Protection Association) label is red. In the NFPA labeling system, red specifically indicates the associated hazards of fire and flammability. This clear color coding system is crucial for the rapid identification of hazards during emergency situations, as it helps first responders quickly assess the risks involved when approaching a scene.

Each color on the NFPA label corresponds to a specific type of hazard: blue indicates health risks, yellow denotes reactivity, and white usually represents specific hazard information. Red stands out as a warning for potential fire-related incidents, which is essential knowledge for anyone involved in hazardous materials operations. Understanding this color coding helps ensure safety in both handling and responding to flammable substances.