The color red is a primary color in the RGB color model, which means it cannot be created by mixing other colors. It is often associated with strong emotions, such as love, anger, and passion. In nature, red is commonly found in flowers like roses and fruits like strawberries, making it a vibrant and eye-catching color. In various cultures, red holds different meanings. For example, in China, it symbolizes good fortune and happiness, while in Western cultures, it can represent danger or warning. Red is also used in traffic lights to indicate "stop," highlighting its significance in safety and communication.