What is the color of the security background?

1. Red indicates prohibited, stopped, dangerous and fire-fighting equipment. All prohibited, stopped, fire-fighting and dangerous devices or environments should be painted with red marks as warning signals.

2. Blue indicates the instructions and regulations that people are required to follow.

Yellow means to remind people that all devices, equipment and environment that warn people to pay attention should be represented in yellow.

4. Green means providing people with permission and safety information.