My master bath has brown cabinets and the window and crown molding are done in brown wood...my master bedroom has brown crown molding and brown accents. There is a common thread so the two rooms flow. But they are not the same color, not a lighter tone of the other...nope, two different colors, different styles, definately different linens (I only believe in white for towels because I believe God invented bleach for a reason). My hardware in the master bath and master closet are in similar gold tones. And the lighting between the three rooms is all antique, most are exposed bulb fixtures from the early teens but in different colors. So there's another little carry through. I think my three rooms, which are all different colors with different linens flow because I've kept a few key features similar, though not exactly the same. In the bath, brown is the main color, in the bedroom it's an accent and in the closet it becomes the main again. The walls of the master suite are bronze (literally metalic bronze tone) but the master bath is done in a marble like finish of cream and tan. The closet is gold. All different textures, but they still flow well and give me flexibility to do different things in the master bedroom if I want to. This is the view from the bath to the bedroom: And from the bedroom to the bath: And I do require the cat sit on the counter in the bath at all times because he matches the wall in the bedroom....

I'm bumping this back up because I've been thinking about scaling back. We are reno'd out after our kitchen, and now bogged down with painting nearly every room in the house. We also have to take out some carpet and install hardwood. The thing I hate the most is the sink right across from the toilet. We do use the bathroom at the same time, but there is barely enough room for toilet and sink use simultaneously. Plus, I hate having a mirror right across from the toilet. So, I'm thinking of keeping the vanity as a single vanity, 48", but moving the sink closer to the shower. Then we'd put tall cabinets across from the toilet for towels, toiletries, etc., which we currently keep out in the hall closet. Though I still worry about the huge size discrepancy between the bedroom and bathroom.

Nothing wrong with mixing up colors. The colors should coordinate a bit so they flow from one room to another. My master suite is three rooms in an "L" shape, the sitting room is in the middle. All three rooms are open to one another with doorless archways, so they do flow visually. The center room, the sitting room, has deep red/burgundy walls and a cream/ivory trim color. Off one side of the sitting room is the bathroom. The the trim and cabinets are the same cream/ivory as the sitting room, but the wall are somewhat beige. Off to the other side of the sitting room is our bedroom. In there the walls are sort of a cream/ivory, and the trim/cabinets/wainscot is a deep muted historical green. The cream/ivory sort of ties the three rooms together and the other colors sort of bounce off that. For bathrooms which can be dominated by hard surfaces (fixtures/tile/stained wood) where the color of those items can be difficult or expensive to change, I usually recommend that those hard surfaces be a neutral or somewhat muted color. Then the wall color, or soft accent items like towels and throw rugs, curtains, etc, which are easy to change, be the stronger and sometimes more vibrant accent color. The hard surface colors in our bathroom are sort of neutral (cream cabinets and trim, beige walls, natural teak for the countertops and tub deck, tile is cream and charcoal), we change the color of the towels/rugs whenever we feel like it. Sometimes to a strong color; deep green, cranberry red, etc, sometimes to a soft neutral like beige, off-white, etc. And there is nothing wrong experimenting with colors either, especially paint. At roughly 10 cents a square foot coverage for basic formulations, paint color can be inexpensive and fairly easy to change.

Previous owners enlarged the bathroom by taking the space from a bedroom. Best decision ever. In our previous home, my daughter had a huge bedroom but she adapted to the room easily enough, which is approximately the size yours will be, (but without a closet). Day bed, armoire, small dresser and chair and some decorative boxes under bed for added storage. Mind you she was happy to move to her brother’s larger room when he moved out and we are now using as a guest room. When we sell, owners can see it’s a workable room, so I have no worries there.