A cesem that is found on a colored piece of clothing is tahar. What about someone with dark skin (they are of some ethnicity/race that has darker skin), could the same idea be applied in such a case that the cesem would also be tahar?
(To note there is a disagreement as to whether a cesem found on one's body is tahar even when it's lacking the size of a cesem that we would normally say is tameh. So, this question is going according to either opinion. If it does, or doesn't have the proper shiur (size) and is find on the body of someone with dark skin) could it tahar mitzad the din of "beged tzavuah" (a colored garment.)