Grey or white?

So, one of the contrasting colors in my leftover shawl won’t be enough and I need to figure out which of these two will work best between the purple and the blue. The grey looks nice with the purple, I have an entire shawl with those colors after all, but I think it’s not enough contrast between the grey and the blue. The white on the other hand looks nice with the blue but perhaps a little too much contrast with the purple. I’m not sure what to do but I don’t want to bring in another color, of that I’m sure. It will have to marinate a little and then maybe the answer will be clear to me.

In the meantime, I’m knitting Me Made’s hat.