Red is a warm, impulsive, and powerful color. It can speed up muscle function and blood circulation. Because red is easy to attract attention, it is also widely used in various media. In addition to having a better visual effect, it is also used to convey the corporate image and meaning of vitality, positivity, enthusiasm, warmth, and progress. In addition, red is also often used as the color of warning, danger, prohibition, fire prevention, etc. When people see the red label on some occasions or objects, they often do not have to read the content carefully, and can understand the meaning of warning danger. Among the safety colors, red is the designated color for warning, danger, prohibition, and fire prevention.