Something to note about the way colouring these would work. I used a piece of torso clothing as the base for my colour scheme.
They are all Black & White.
You can change the Black by ADDING a colour.
You can SUBTRACT a colour, and it will make the White a lighter version of the colour on the opposite end of the hex.
You can change the White by MULTIPLYING a colour.
And that is how colouring would work.
I made two versions of each hairstyle included: White with Black Outline, and Black with White Outline. I tried to convert five "male" and five "female" hairstyles.