The answer depends on the specific population being considered, as skin pigmentation can be sexually dimorphic (different between sexes).
In some populations, females have lighter skin than males. However, in some light-skinned populations, specifically those of European descent, women tend to have darker skin than men. The underlying reasons for this variation in sexual dimorphism of skin color are not fully understood. It's important to recognize that skin color is complex and influenced by various genetic and environmental factors.