Pick a blue or a green that is about mid range in value to liven up the space a bit.

Does shower glass have the bit of green tint? I like cpartist's idea, but you could try pastel/ pale.

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A beige/tan color from the floor would keep the space serene and make the white look even more crisp. Manchester Tan? Vapor? Swiss Coffee?

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A great "Spa" Color is Sherwin Williams - Aqua Sphere, a very relaxing, calming - blue :)

I have been thinking of a pale aqua or celadon. Going crazy with color chips. I tend to like Sherwin Williams “Sea Salt” and I will look at Aqua Sphere. I also like a color from the floor but the shower has a pale aqua stripes which look out of place now, so maybe an aqua would tie it in?

"Sea Salt" is a nice color. Also look at BM Half Moon Crest and BM Beach Glass.

BM Half Moon Crest

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BM Beach Glass (slightly more green undertone)

Like your green soap, you could pick a green and paint the mirror frame. And buy a rug.

I think the shape that wall paint makes [around features of sink, and shower] might be slightly chopped up.... no big deal. A small rug instead of painting anything?

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This could complement floor some - I'm trying to find geometric shapes so the 'stripes' of shower look like a blend [with triangles, etc]

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Instead of painting a pastel, what about painting frame to about a match with faucet... add touch of green in it?

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If you’re going with pale aqua walls I would use its complimentary color for accents which would probably be a pale salmon.

BM Smoke is such a pretty blue/green. It's color without being too bold. Love it in my small bathroom on the upper half of wall.

Frosty glass, frosty colors in wipe easy canvas - if you're considering anything over the toilet -

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Nice green and pink --

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The fastest and easiest way to add color is to buy two or three sets of towels in colors you like...also matching bathroom rugs.
You could do the sink wall in a washable vinyl wallpaper.

I would add a new mirror, maybe oval. Pretty towels and bath rugs and a new soap dispenser.

I agree this room needs color .. It looks like you have very little wall space...I would pick a color I LOVE and paint.. if you feel that is too much.. try a few vertical stripes of color..to start.. varying the stripe width will break up the “in a box” feel a little as well

The dark trim looks a little out of place in the field of white .. if you don’t want to paint it.. you may add some dark brown motifs on walks ?.. paint mirror frame to match?

“Walls”

Great ideas! I like rinq’s idea of tan beige to go with the floor and also decrease the contrast with the dark wood trim as btydrvn pointed out. Then add the blue greens with the accessories, mirror and medicine cabinet. Valspar has the perfect 3 colors which they suggest together: Meteor Dust (accessories) Soft Wool (ceiling and doors) and Gentle Lamb (walls). I also found a great stencil from Royal Design studio as a sink backsplash - Meteor Dust on Gentle Lamb. I will not be at the cottage until the ice breaks in the spring (an island) so I’ll maybe do a Before and After or post here. Any more ideas also welcome! THANK YOU ALL!

In a windowless room you need a color with a bit less gray and a bit more saturation because it will wind up reading more gray anyway. Sea Salt and similar colors will make a windowless room look almost dirty.

Beige will be quite blah. I know this because my bathroom in my condo was painted beige after we sold it. It looked almost dirty instead of clean because of it not getting any natural light.

Thanks cpartist - I do tend to those colors but the lighting is so important!

Is sink an ivory/ bone color? then beige yeh? I'd still paint the mirror frame. ;)

Thanks cpartist - I do tend to those colors but the lighting is so important!

Yes lighting helps but what I'm saying is pick a color with just a touch more saturation (not a lot) then what you think you want because once up it will read a bit less bright in a dark room.

Maybe this green is a mid-tone that cpartist wrote about....let the greener paint 'lead the way' so to speak [instead of very pale greenish glass]
but not too bright or the glass will look weak and watered down like bad coffee....? ;)

in comparison

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I know I'm going on and on -- painting mirror frame a strong mint with rug below -- might draw eyes away from shower [but not bother the eyes either]. What art you like shows who you are... over toilet?

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Maybe this green is a mid-tone that cpartist wrote about....let the greener paint 'lead the way' so to speak [instead of very pale greenish glass]
but not too bright or the glass will look weak and watered down like bad coffee....? ;)

in comparison

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Everdebz, you nailed what I was trying to explain. In a windowless bathroom that color will read a bit grayer.

I think the "stencil" on the shower door is sufficient for this tiny room. BM has Spa Day which might be fun for the wall directly behind the sink and the toilet. Have you changed lighting to LED?

cpartist - I thank you, for saying that I said something alright. :) I like a bit of that, I do.

A nice article with paint color ideas:

https://www.houzz.com/magazine/aquamarine-relaxes-rooms-stsetivw-vs~2543339?vm=thumbs

cpartist - I thank you, for saying that I said something alright. :) I like a bit of that, I do.

I happen to like a lot of your ideas. I particularly like that like me, you are drawn to color.

I think getting some blue/green towels, a bathroom rug, and a new mirror will help a lot. I also agree with what btydrvn said about the trim. We do have mirror frames available in wood tone finishes.

I have just the right pale green/aqua towels - the same color as everdebz. I am now thinking of painting the mirror, med cabinet and a stencil over sink and toilet using Amy Howard One Step Toscana Sage which is a pale green/aqua to match the towels

I would paint the walls the pall green/aqua color and then do a white stencil on top. Paint the mirror, med cabinet white too.

That is great! I wasn't sure how or what stencil you were thinking of doing, but please show? when done.....ya know... I was curious and read your post about stenciling above sink... anyway, I don't see a medicine cabinet. oh well.

Following...

I wouldn’t paint or stencil. I think it would be overpowering in this small space.

Like others have said, get new fluffy towels and a luscious rug in a green or blue and be done.

I agree with most of the responses, however would use a lavender or violet which would work well with the floor. Suggest a cotton rug you can rollup when not in use

You might want to try the Sherwin-Williams Color Visualizer. You can use your own photo (or one of theirs) to put whichever colors you choose on the walls.There's also the option to change from daytime light to night time light. It's a lot of fun too! SW Color Visualizer

everdebz I was trying to post a stencil example but I am in the process of switching from a dying Ipad to a fire tablet and I cant. See brocade border stencil at royaldesignstudio.

Correction to earlier post paint color Hotel St. Frances Clay Angel, used it in my small bathroom. Any who carry on.....

Change decor, not paint.

I think you are missing the nature/texture element. I like the white for the space but would add a plant somehow; wall succulent, hanging ivy - and a natural fiber small rug.