A rainbow is a natural phenomenon that occurs when sunlight is refracted, or bent, by water droplets in the air. It is a beautiful and awe-inspiring sight, often appearing as a semicircular arc of vibrant colours in the sky. The colours of a rainbow, from top to bottom, are typically red, orange, yellow, green, blue, indigo, and violet, forming a stunning spectrum. Rainbows often appear after rainfall, when the sun breaks through the clouds and illuminates the droplets in the air. They symbolize hope, beauty, and the promise of brighter days. Rainbows have captivated the imagination of people for centuries, inspiring art, literature, and a sense of wonder in the natural world around us.