Navy or red saltwater sandals

[Birdy65]

I love my metallic sandals and I have decided to get some more this year. I can’t decide between the red or navy.
What do you all think?
Also, some pictures of the navy saltwaters appear to be a lighter shade of navy and some look almost black in colour, or is it my imagination?

I bought the mustard ones and the olive earlier this year from Office as I had an offer code, both are lovely I would probably get red though navy is always handy to have. I do have a lot of colours and wear my navy ones a lot though. Cheapest place at the moment to get from seems to be Jake Shoes at £53.55 and free delivery though other places sometimes have offers

I’m tempted to keep the pewter ones now. Love the silver and navy so they’re the perfect in between!