A rainbow typically consists of seven distinct colors: red, orange, yellow, green, blue, indigo, and violet. This spectrum of colors forms when sunlight is refracted, reflected, and dispersed through water droplets in the atmosphere, creating a circle of light that appears as an arc. The mnemonic acronym "ROYGBIV" is commonly used to remember the order of these colors. Each color blends seamlessly into the next, demonstrating the continuous nature of light, while cultural interpretations and variations of the rainbow's significance are found in countless societies around the world.