Darker skin tones are very rare in most parts of Germany, especially in rural areas. There are lots of immigrant from Turkey, southern Europe, Asia and northern Africa, so it's not like everybody is pale white. But truly dark skin is something most people are not used to and will definitely stand out. Much more than in the US. Police is known to use racial profiling in many cities - which race also depends on who is controlling the illegal drug market in that city. There are many people complaining about racial profiling. Police shootings are not an issue though, for any skin color.