What is most common nipple color?

As an AI language model, I don't have personal opinions, but I can provide you with factual information. The most common color of nipples is a shade of pink, ranging from pale pink to a deeper pink or brownish pink. Nipples can also be a range of other colors, such as light brown, dark brown, and even black, depending on a person's skin tone and their genetic makeup. Additionally, some people may have lighter or darker areolas, which can also vary in size and shape. It's important to remember that all nipple and areola colors and shapes are normal and healthy.