Which color is not typically associated with warning signs in construction?

In construction, color coding is crucial for safety and communication. Yellow is commonly used for warning signs because it is highly visible and alerts workers to potential hazards. Red is associated with stop signs and fire-related warnings, indicating a need for immediate attention or action. Orange is often reserved for caution, especially around construction equipment and areas that require heightened awareness.

Blue, on the other hand, is not typically associated with warnings. Instead, blue is used to convey information about mandatory actions or to indicate that certain safety gear must be worn. Therefore, while yellow, red, and orange are all colors that denote warnings, blue does not have that connotation in a construction context, making it the correct answer for the question regarding which color is not typically associated with warning signs.