What are the colors in the room next to this one, and the other rooms in your home? What is your style (casual, transitional, etc.)? Do you have an inspiration fabric, accessory, or piece of wall decor? Below are some ideas. They tend to like white or light gray. https://www.houzz.com/photos/query/hexagon-floor-tile-bathroom/nqrwns

I'm always "out there" but why not give a bright splash of color?

Of your samples. I like the deepest blue one. Like the one closest to the bottom on the left. However, 😬🤭 I would love to see wallpaper. Or even tile here.

I agree the deepest blue would be very pretty with your floors.