Absolutely. Whether in a spacecraft, spacesuit or Martian habitat, skin type is neither here nor there.
The effects of micro-gravity during the months in transit to Mars and then low gravity (around one third of Earth's) whilst on the Martian surface, could be a factor though. We know that, even with intensive exercise, astronauts lose bone density, their muscles atrophy and they become subject to a host of other undesirable effects. Musculoskeletal effects can make the body stretch by several centimetres.
It would seem that, to mitigate these effects, the optimum body type for extended space travel and long-term living in lower gravity would be stocky and very muscular, but not necessarily very tall astronauts. A vaguely Neanderthal body type in fact!