Tile choosing emergency - for a windowless square utility

[FromTheFirstOldFashionedWeWereCursed]

We are having some reinstatement insurance work done on our house, starting tomorrow. It's possible that we may be told that they cannot replace some tiles that were broken during drain repair work, and if things really do get dramatic, we will have to choose new tiles for our utility room.

It's basically a 2m x 2m box, with a plain white ceiling and recessed lights. No window. At the moment there are large square beige floor tiles and small square beige wall tiles, all the way to the ceiling on all four walls. It's fine, but not really aesthetic in any way (previous owners).

If they are only replacing the floor tiles, I'm happy for them to aim for like-for-like, but if they do it all..... then what? I'm desperate for ideas please. The house is mid-century and most other rooms are pink or green. I fear that a fully tiled green room will look like Trauma 2 on ER, or a fully tiled pink room is going to look like a womb. Heeeeeelp me.

I’ve once been in a green-tiled hotel room (it was cheap…) and it felt like a morgue. Don’t do that!

Does it need to be fully tiled? I think that plus the no window will always look a bit industrial/ clinical.

I’d just got for plain cream to make the space feel bigger