It's not really something to be suspicious of. Cameras just don't know what colors things "actually" are, mostly because they don't know what color the lighting is. Auto exposure/auto white balance erases color casts or unusual skin colors.
You can put a color calibration card in the picture to achieve a similar effect, but it's not as predictable.
You can put a color calibration card in the picture to achieve a similar effect, but it's not as predictable.