The color of alfredo sauce can vary depending on the ingredients used and the method of preparation. Traditional alfredo sauce is typically made with butter, cream, and Parmesan cheese, which gives it a rich, creamy white color. However, it's not uncommon for cooks to add other ingredients like garlic, herbs, or even tomatoes, which can change the hue of the sauce. As a result, alfredo sauce can range in color from pale white to light pink to golden yellow.