Every time I take a picture outside, they turn out with a blue tint!

Artificial light is a different colour than daylight. Our eyes compensate, so we don't notice it much. Digital cameras can compensate too, but whether they do or not depends on the settings. The setting you want to investigate is colour balance. If this is set to daylight, it will give an orange cast to pictures taken in tungsten lighting, and a greenish cast to pictures taken in fluorescent light. If it is set to artificial light, pictures taken in daylight will have a bluish cast. The best setting for most people is Auto. That will let your camera decide, and usually it will get it about right.