Is it permissible for a woman to wear colored clothes such as white, green, and black during Hajj?

A woman may wear whatever clothing she wishes during ihram, provided she does not display her adornment in front of non-mahram men, as there is no specific clothing for her during ihram. This differs from a man, who is prohibited from wearing shirts, trousers, turbans, burnooses, and khuffs (leather socks). As for a woman, what is forbidden for her is wearing gloves, veiling her face (niqab), and displaying adornment.