Greetings acdigitalmedia,
Let's check to see if the same issue occurs when playing back the footage on the camera's LCD screen to see if the blue appears purple. In case it does, then you may check to see if the white balance is set correctly on the camera prior to shooting since this may affect how colors are reproduced and recorded, even in the log format.
If the camera plays the footage without any color issues, then please check your computer's display settings, or display / video settings for your video editing application.
