Which colors are represented in a clockwise fashion starting from the top of the NFPA 704 Diamond?

The NFPA 704 Diamond, which is used to communicate the hazards of materials, features a color-coded system arranged in a diamond shape. Starting from the top and moving clockwise, the designated colors are red, yellow, blue, and then white in the center.

The red section indicates flammability, the yellow represents reactivity, and the blue signifies health hazards. The white area is used for specific information about the material such as its special hazards, which may include any unique risks associated with it.

By correctly identifying that the sequence begins with red at the top and continues in a clockwise direction to yellow, then blue, and finally white, you can see why the option listing red, yellow, white, and blue corresponds accurately to this established standard. This is essential for first responders and emergency personnel to quickly understand the risks associated with hazardous materials.