1. A computer-implemented method for detecting skin tone in an image, the method comprising: sampling an image that may depict a human face to generate a sample portion; evaluating pixels in the sample portion to generate a first determination whether the pixels are substantially neutral; evaluating pixels in the sample portion to generate a second determination whether the pixels correspond to skin tone colors; evaluating pixels in the sample portion to generate a third determination whether the pixels are substantially black or far from neutral; generating, based on the first, second, and third determinations, a skin tone result indicating a confidence level that the received image includes a depiction of human skin; and providing the skin tone result to an image management application to indicate a likelihood the image depicts a human face.