"The Egyptians hated anything red, as can be seen from an invocation to Isis: 'Free me from all red things'. In his alter ego as Typhon, Set was called 'the red-skinned one'."And;
"Women with dissimilar eyes or red hair were instantly recognised as devil worshippers: apart from the symbolism discussed previously, perhaps this was because redheads usually have freckles, and these were often taken as 'witch marks'."There was also this interesting little nugget about hair in general;
"Saint Paul ruled that women's heads should be covered in church 'because of the angels', for there was a real fear that female hair attracted daemones[.]"