What color tank top to wear under a navy blue sweater that does not close all the way?

I'm going to wear this top with coral "favorite khaki" shorts from gap.
The sweater is from abercrombie and fitch. It does not look like your normal abercrombie sweater its knitted and has one clasp at the top to close a bit. It has many many rhinestones on it that go from the shoulder down to the clasp which is just above the boobs then down to the bottom of the sweater. With less rhinestones as you go down.

if you want a classic look go with white, if you want more flirty look then a light pink (almost peach) plus it looks good against any skin tone!

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