: Red is the universal symbol for deep, romantic love and intense desire.
: Because of its high visibility, it is used for warnings, stop signs, and symbols of authority. In many cultures, like in China, it represents luck, happiness, and vitality.
: Historically linked to war and rebellion (e.g., the "red coats" or revolutionary flags), red evokes visceral human emotions of courage and rage. Pink: The Evolving Sentiment