The color red is a primary color in the visible spectrum of light, located between orange and violet. It has a wavelength of approximately 620 to 750 nanometers. Red is often associated with strong emotions, such as love, anger, and passion. It is commonly used in various cultures to symbolize important concepts, like stop signs and fire alarms. In nature, red can be found in many elements, including red roses, apples, and cardinals. It is also a prominent color in many flags and national symbols, representing courage and sacrifice. The color red can evoke feelings of warmth and energy, making it a popular choice in design and art.