The term 'Alert Color' refers to the colors used to indicate a warning or caution. YELLOW'>RED, YELLOW'>AMBER, and YELLOW are the three colors most commonly used in this context. YELLOW'>RED is the most urgent of the three colors, indicating an immediate danger or emergency. YELLOW'>AMBER is used to indicate a less urgent warning, such as a hazardous situation that requires caution. YELLOW is the least urgent of the three colors, indicating a potential hazard that requires attention.