Can't say I've ever heard of or seen a blue and purple version. Could be mistaken for Sully from Monster's Inc. Is this a version you have an image of or that you designed yourself? Do you have a reference picture?
KuroNekoCon- '11 : Radcon-'12 : Akicon-'13 : Sakuracon-'13, '14, '15, '16, '17 : PAX West-'11, '12, '13, '14, '15, '16, '17 : Rainfurrest-'15 : ChibiChibiCon-'17 : RenCon '17
Shy Gal (Nintendo Fan Design)