Besides the fur, what color is the exposed skin on the facial region of the capuchin?

The facial skin is typically described as pink or a cream/white-cream color.

The facial region of the White-Faced Capuchin offers several clear visual identifiers beyond its fur pattern. While much of the face is covered by lighter fur, the underlying skin itself is visible in certain areas, particularly where the fur is sparse or hairless, such as the center of the face. This exposed skin is characterized by specific pigmentation, most commonly described as pink in hue. Alternatively, observers may note the skin color presenting as a cream or white-cream shade. Additionally, identification can be aided by noting specific features like dark fur patches or dark brows situated above the eyes, which contribute to the monkey's highly expressive facial structure used for non-verbal social communication.