The primary color of a blueberry is blue. Blueberries are small, round fruits that belong to the Ericaceae family and are known for their sweet flavor and vibrant blue color. This distinctive hue comes from a group of antioxidants called anthocyanins, which are also beneficial for health. Blueberries are commonly consumed fresh, in jams, or as ingredients in various dishes such as muffins and smoothies. They are celebrated for their nutritional benefits, including high levels of vitamins, fiber, and antioxidants.