A ripe banana is typically yellow, though it may have some brown speckles on its surface. The yellow color indicates that the banana is sweet and ready to eat, as starches have converted into sugars during the ripening process. This transformation makes it softer and more palatable. Some varieties of bananas may remain green longer and can turn brown or even black when overripe. Ripe bananas are a popular snack and ingredient in various dishes, known for their nutritional benefits, including potassium, vitamin C, and dietary fiber, making them a healthy choice.