Colors play vital role in textiles, automobiles, and decoration sectors. The general source of colors are dyes and pigments but are not safe for human health and at the same time suffer with stability issues, as it degrades with thermal energy, humidity, and UV exposure etc. Nature itself finds the solution and generates colors by means of structures called structural colors. Many fascinating artworks can be found in nature, such as peacock feather, butterfly wings, and gem opals that generate colors because of microstructures on them.