I don’t think it would clash !

Nothing clashes with water.

I agree, with above. It wouldnt even be a consideration for me. :-))

Ooooh I think navy would be gorgeous… that’s a lovely shot of water! Can I come over!!?

Looks like you have dark blue in your tile ...

In his book, David Hicks on Decoration (1966), he said,

“There are a set of loose rules, which when applied to colour cannot fail.… All reds go together, all pinks go together, just as all blues, greens, yellows, browns and all grays do.”

I think you're good.