You can tie the two rooms together by having both green and blue accents in the living room (e.g. in a rug, pillows, curtains, etc.).

Look at the other colors on the BM strip with Quiet Moments. My living room is Mount Saint Anne, a beautiful blueish green.

You could do it if you we’re determined to treat the sofa more like a cool - toned neutral and emphasize adding green and green + bluish gray “prints “, including in that concept things like tweeds or stripes, as well as florals Or abstract prints ( not meaning all of those together ), and artwork, green plants, accessories. It does also depend on how matchy- matchy is your personality , how closely connected the rooms are, and actually your own talent in mixing colors and developing cohesion or repetition. Because it could be done in a few c” easy “ ways or with very subtle and sophisticated mixes that people more talented r than I have. Plus the issue of sourcing items.

So potentially easiest things are: artwork chosen for color combinations; rug ( fair amount of choices, but fewer once you impose filters for materials, price, size; FABRIC especially if you’re will to go custom ( including Etsy) , even in small smaller amounts such as finding a fabric print you love & having a couple of zipper throw pillow covers made.
Green plants ( real) wood carry dark green vibe nicely.

Another option you have is to save some of your green paint and paint an item of wood furniture- something simple like a bench or stool- or even a wooden tray or decorative box- that you use in LR. Different greens do tend to mix well at least in smaller amounts so other greens will work, and it’s common to find nature prints & fabrics already with a mix, but it’d be cool to have a good match in a few elements, to provide that repetition.

This might drive you to pick a cooler green for your kitchen, since a very warm olive- khaki green probably does not work well with your sofa, at least on my monitor.

I think they can definitely work together.

If you have your heart set on green, go for it. Your kitchen cabinets will be around a lot longer than your sofa. Don’t plan your kitchen around a piece of furniture.

I’ll bet the green will make you smile every time you’re in there. :)

A soft, neutral paint color throughout to unite the space.

Kitchen: a less intense/dark green (with a slight blue undertone) would be much easier to decorate around. Inject some wood as well. I’d skip white uppers; keep it simple and warm. The backsplash and counter will bring in the contrast.

Living room: a rug is a perfect way to connect spaces and look for complementary cushions and art. Muted is the way to go, as they can take on shades.

Bathroom: it doesn’t have to flow with anywhere else, but suggest lightening most of your accessories and the wall color, so vanity becomes more of a feature. Suggest new window treatment.

https://www.amazon.com/Grneric-Blackout-Filtering-Windows-Kitchen/dp/B08FHXX8M2/ref=sr_1_29?dchild=1&keywords=blackout+roman+blinds&qid=1617297950&s=home-garden&sr=1-29

Having both green and blue accents to tie the rooms together is a good idea overall.

@Jilly the lovesac might be around longer than my cabinets! We bought it with the intent of keeping it for a very long time. They are an investment but can be changed into different configurations. However, you are right, the kitchen will make me happy. Love my sofa too, though! I think with the help here, I will be able to make it work.

@marmiegard_z7b this is great advice. I love the idea of painting a piece the same color as the kitchen. My talent for mixing colors is pretty non-existent. Once we nail down a cabinet color I will report back for helo!

I don't like the idea of a blue/green kitchen. If we do colored cabinets, I want them to be green. But I could warm to the idea of a lighter green/sage with no blue tones.

Do a gray-green instead. Benjamin Moore's Heather Gray would work with your fabric.

Bernal Heights Sustainable Kitchen · More Info

@Sabrina Alfin Interiors we must have been posting at the same time. I could make that compromise! Thank you. This picture is helpful context.