Rainbows are one of the most sought-after subjects for children’s coloring pages with parents throughout the world often looking for printable online rainbow coloring sheets. Children love to draw and paint rainbows as their colorful yet simple appearance makes it very easy to draw them, even for little kids. The optical phenomenon usually caused by sunlight reflecting from water droplets present in the atmosphere of the Earth contains seven main colors. So, the Rainbows featured in the coloring pages have seven sections, each of which are to be filled with the seven different colors present in a rainbow. This provides children with a chance to use their coloring skills and find the right shades to fill each section. Here is a collection of some of the best rainbow coloring pages that are suitable for kids of all ages including toddlers, preschoolers, and kindergarteners. Check them out to pick the best ones for your kids.