I shoot in raw so whatever color setting in white balance should be ignored. I tried to correct it in Lightroom but it seemed difficult to get it right. I use a computer when I look at all my pics and I actually think my color on the monitor must be off as I had a couple people tell me the one I thought was purple looked correct. Makes me wonder what all the pics I thought were correct actually look like, lol.
I shoot in RAW as well, but can get slight color changes by setting a color temperature in the white balance menu. I will say, this has only happened on my D810 when I adjust the color temperature to the very extremes. Then I get some purple. Could never do this on my D7100 or D5200 if I remember correctly. So maybe it's just the model of camera.