Hi nina,
It is very normal for canines to be more yellow than your surrounding teeth. If you pay attention to smiles, you will see that the centrals and laterals are almost always more white than the canines.
Having said that, you can still whiten your canines individually, but not with white strips. you will need to get custom made bleaching trays (dentist), then just fill the canine "grooves" with bleaching gel. Good luck!
