User blog comment:SynodicalSyndus/A possible fanfiction?/@comment-34378923-20180216170514/@comment-4558186-20180216174914

Well technically speaking if you want to make a Hozuki OC you are free to give them whatever color hair you want. Its just that of the three known members of the clan, 2 had white hair while the other (Gengetsu) had blond hair. Because of this, I interpret the clan either having very light colored or white hair.