Is it forbidden to wear and sell colorful women's ghutras (such as red, pink, and yellow) that are placed on the shoulder, due to imitation of men?

If the ghutrahs (headscarves) are shared between men and women, then there is no harm in girls using them, and this is not considered an unlawful imitation. However, if they are specific to one gender, then it is not permissible for the other gender to use them. Consequently, it is not permissible to sell them to someone known to be using them in forbidden imitation.