This should help you more for those confused over colors
Though not every color seems to be pictured this shows many of them to better aid people in knowing what color their dogs are .
APBT and AmStaff color charts:
American Dog Breeders Association
scroll down to the bottom of this page on the ADBA site:
and then click on "Download: Litter Application" At the bottom of the litter registration it explain how to choose which color your dog is in detail and it lists the colors that can be put on the reg form as per ADBA
American Pit Bull Terrier Network APBT color gallery
AKC color chart