I'm going to point out the elephant in the room here: orange and browns HIGHLIGHT blue. If you want the blue to STAND OUT, then you use orange, brown, beige, cream, etc (any of the tiles you see in your photo). One way painters get blue to 'pop' is to add a dash of orange...and orange makes up the colour range of browns and many beige colours....pretty much all the tiles you have posted in your photo.

If you want to down play the blue (to make it blend a bit more) you might want to look at a tiles that incorporate the blue in their colouring. Like blue/gray, silver, slate blue, etc.

So my question becomes: what are you trying to achieve? Do you WANT to highlight the blue tub? If so, then any of your current choices will do the job and they will do it BEAUTIFULLY (all the blue in the tub tile is going to jump out and grab you every time you look into that room).

If you want to DOWN PLAY the blue tiles, then you may need to rethink your approach.

I'm going to say that if you don't like the blue tiles, then the best option is going to be to get rid of them. As many designers will tell you, do not waste time/money designing around a feature that you hate. If you need to down play something because you hate it, it is best to spend the money to rip it out rather than paying tons of money doing and then redoing, and then redoing again....with the same result: the blue tiles are still there.

Good luck. Please let us know what you are trying to do with the tiles: hide or highlight.