Studies have shown that students have been more willing to take this rice purity test than to take a very private STD test because they felt the purity test results were more of a no judgement zone.
Russians come from a plethora of different people, but Slavs are the most common. Slavs traditionally have light brown or even blond hair, with only a smaller part of them endowed with dark hair from southern ethnicities, like so: Black hair color is actually pretty common, especially the further you go East.
Koreans, for example, commonly have naturally dark brown hair. Occasionally, Asians will naturally have dark brown hair. So if you just want a slight change, there is no color safer for you than dark brown. It is extremely flattering on Asian skin because it gives your face a glowing warmth.