Yellow safety color is used to indicate which workplace area?

• A. Red, representing danger
• B. Green, representing safety
• C. Blue, representing information
• D. Walkways, railings, trip hazards, and machine clearance areas

Answer: (D)

Yellow is used to signal caution around physical hazards in the workplace. It alerts you to proceed carefully and be aware of potential harm, especially where you could trip, slip, or come into contact with machinery or edges. That makes it a natural fit for marking walkways, railings, trip hazards, and machine clearance areas because these are places where extra attention and space are needed to avoid injury. In contrast, red usually signals danger, green indicates safety or safe conditions, and blue is associated with information or mandatory actions, depending on the standard. So the areas described—walkways, railings, trip hazards, and machine clearance zones—are colored yellow to warn you to proceed with caution.