Are you shooting in RAW? Was your white balance set to auto? Unless you have a program like lightroom then you'll need to change the WB on your camera to match the color. Most likely it was set to Tungsten. It exists for the when shooting indoors with tungsten lighting, it will add coolness (blue tone) to the photo to counteract the orange cast coming from the indoor lighting. Try using Fluorescent or Daylight depending on the lighting in your house, or flash if you're using flash. Normall I use auto WB and correct it in light room (because I don't think my camera is smart enough) but without an editing software you're going to need to tackle this in camera.