About: Vietnamese five-color flags
In Vietnamese culture, five-color flags (Vietnamese: cờ ngũ sắc, Chữ Hán: 旗五色) or five elements flags (Vietnamese: cờ ngũ hành, Chữ Hán: 旗五行), deity flag (Vietnamese: cờ thần, Chữ Hán: 旗神) are traditionally flown during festivals and religious ceremonies. A five-color flag consists of five concentric squares in red, green, yellow, and blue, representing the five elements (ngũ hành). The order of colors varies. The outermost square has three ragged edges, similar to fringing. The center of the flag is sometimes defaced to commemorate a specific concept or personality.
