What is the color of R-134a refrigerant cylinders?

The color of R-134a refrigerant cylinders is light blue. This specific color coding is part of standard practices in the refrigerant industry to help quickly identify the type of refrigerant contained in a cylinder. When technicians or operators are working with various refrigerants, recognizing the color associated with R-134a—light blue—can help prevent errors that might arise from using the wrong refrigerant in a system, which can lead to equipment damage or inefficiency.

Each refrigerant has its designated color. For instance, dark blue is not applied to R-134a, nor are green or purple used for this refrigerant. These other colors correspond to different kinds of refrigerants, which further emphasizes the importance of familiarizing oneself with these standards to enhance safety and accuracy in refrigeration practices.