So did you return it in the end? Like you, the undertone of grey n green in natural daylight didnt complement me.There was just something about that blue color that wasn't right for me either. It looks gorgeous in pictures but when I got it home it had a grey undertone to it and didn't look as bright. I was expecting something similar to the 16S cobalt blue but this was more navy I think.
I still think the blue is gorgeous but not for my skin tone. Here it is in pictures but in daylight, the colour dims n changes to a different tone..a little green grey n blue.