Here are the three colors and the door I will stain a little darker

I would paint the door white.

Thanks so painting the door high gloss white with the ceiling would work?

You already have 3 colors in the shower for no reason I can see, I need to see the whole space and also why is this now a wet room which BTW should not have a wood door IMO. and no high gloss for a ceiling it will show every little tiny imperfection and cast all kinds of weird shadows

I had my bathroom remodeled six years ago. For six years I have been disappointed over the work done to the bathroom. I decided I wanted a curbless shower. I never used my tub, which was one of the reasons I wanted to go this way
My bathroom is considered compact. I had the room gutted and walls squared and straightedge.
What type of door should I have for this room?
I also thought high gloss paint would act as a water repellent
I do have three colors already, I wanted to know about adding a fourth color to the cabinets or I should just paint both white and keep it to the three colors
I have attached a video of what is happening so far

Sorry I thought I could attach a video

I agree a high gloss paint will help to some degree but honestly a shower with a curb and a nice glass door is a much better look and a lot less work everytime you shower . Unless you are in a wheel chair really no real benefit to a curbless shower IMHO. BTW I have never heard of the 3 color rule .

I can’t visualize having a navy cabinet door when there’s a black floor in the shower. What color will the shower fixtures and faucet be? These are your 4th color.

I had set in my head and design I was going to make the door and the cabinet doors white

Yesterday the tiler asked me was I keeping the door color. I told her my plans. She said, “that would be too much white” I then started second guessing myself

I read this online about a three color max in a bathroom

To save money I wanted to reuse some items from my last renovation ( it was two items) They happen to be chrome. So all the fixtures will be chrome
I just took this picture- she is now starting work on the floor

Because my bathroom is compact. I will not use a glass door. I am reusing my ceiling shower rod. I also purchased a slightly longer curtain

Stick to the black, white, and light aqua colors. They work well together, and there is no need to add more colors. Use a white shower curtain. I think you can paint the ceiling, door, and cabinet all white. You can add in the light aqua with your towels and a rug. Or possibly paint your cabinet light aqua like the tiles, depending on whether or not you want to highlight it.

Thanks for everyone’s comments

I am going to stick to my original plan of a white door, cabinet doors and ceiling
I will use a white shower curtain
The only other color I may use is a color rug