Glitched texture on model?

So I just finished retopologizing my model but I have an odd persisent dark grey on the side and in some other places.
I don’t have any colors though so what is going on? I tried assigning a white to the entire object and the data ctrl+a but nothing works. Why is it colored this way?

Tab into edit mode and select everything, then hit CTRL+N. That will recalculate the normals and make them all consistent.