Plants that produce flowers have genes and DNA just like people do. In the same way that our genes determine whether we will have brown or blue eyes, a plants genetic makeup determines what color the flowers will be. Flower colors of red, pink, blue, and purple come mainly from pigments called anthocyanins, which are in the class of chemicals called flavonoids (what gives plants their color). Other pigments are carotenoids, found in tomatoes and carrots, that provide yellow, red and orange colors. Chlorophyll is the most well-known pigment which causes leaves and foliage to look green. The bright colors of most flowers are important because they serve to attract bees, birds, and other insects that will act as pollinators. Plants need pollination in order to reproduce and make other plants.