YES BLUE FRENCH BULLDOGS ARE PUREBRED AND HAVE AKC REGISTRATION PAPERS......BLUES ARE RECONIZED BY THE AMERICAN KENNEL CLUB. THEY JUST CAN NOT BE SHOWN AT THIS TIME. THE BLUE FRENCHIES COME FROM HAVING THE DILUTE GENE . THERE ARE NO CONCERNING ISSUES WITH THE COLOR , IT DOESNT MEAN THEY WILL HAVE MORE OR LESS HEALTH ISSUES THAN THE OTHER COLORED FRENCHIES. THE AMERICAN KENNEL CLUB DOES NOT CHOSE WHICH COLORED DOGS CAN BE SHOWN OR WHAT IS DISQUALIFIED. IT IS THE FRENCH BULLDOG CLUB OF AMERICA WHO DOES. YOU CAN FIND MANY USEFULL ANSWERS TO ALL YOUR FRENCHIE NEEDS AT THE AKC WEB SITE.