Go for it. You've got to have color somewhere. You clearly like this color and it will coordinate with the rest of the house.
All cream and neutral is boring.

I think that would look great with the other aqua colors in the kitchen. Who cares if it's dated, it's your kitchen - make it the way you want it .

We just gutted our kitchen and put in antique white counters with tan/cream/etc quartz countertops. It looks wonderful and I am really pleased..

My question is what to do about the backsplash. Our house has a lot of seaglass coloring in it (like a very light aqua) and our kitchen table has that color as well. Would it be overkill to put that color backsplash in?

http://primitiveandproper.com/2014/04/diy-recycled-glass-backsplash-with-tile.html

Or what about even a much lighter more subdued seaglass color, or just a very light pastel aqua?

Or would I be better off going for something cream/tan colored to stay away from trends?

I don't think we are going to be replacing the furniture anytime soon (it's really our first "adult" furniture, we worked with a decorator and spent a ton of money), but you never know..

Thanks!