Colorful light is the result of different wavelengths of light being visible to the human eye. When light passes through a prism, it splits into various colors, creating a spectrum that includes red, orange, yellow, green, blue, indigo, and violet. This phenomenon occurs because each color has a unique wavelength, with red having the longest and violet the shortest. In nature, colorful light can be seen in rainbows, which form when sunlight refracts and reflects in water droplets. Additionally, colorful light is used in technology, such as in LED displays and fiber optics, where different colors can convey information or enhance visual experiences.