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The guide below is the same process I use with clients whenever we pick paint colors for an open floor plan. When your kitchen, dining area and living room all share one big space, you see every wall at once, so the colors have to work as a family, not as separate rooms. Here is how I build a whole house color palette that flows, where I let color change, and where an accent wall actually helps.
Image above: paint color guide by Jill Seidner Interior Design on Pinterest
Planning colors for a whole open space? My Big Book of Mood Boards has 140+ designer mood boards with real color palettes, materials and finishes you can borrow for every room.
Why paint colors for an open floor plan are different
In a home with separate rooms, a door frame gives every color a natural place to stop. In an open plan, you might see the kitchen cabinets, the dining wall and the living room fireplace from one spot on the sofa.
So I stop thinking room by room and start thinking in sight lines. Stand where you spend the most time, usually the sofa or the kitchen island, and look around. Everything you can see from that spot is one composition, and the paint has to hold it together.
Start with one main wall color
The easiest way to make an open space flow is one main color on most of the walls. It does not have to be white. A warm white, a soft greige or a light taupe all work, as long as it sits well with the things you are not changing: the floors, the counters and any large furniture.
Benjamin Moore suggests starting a whole house palette with a dominant color chosen from the central room of the home, then building out from there. In an open plan, that central room is the big shared space, so that is where I start too.
Before you commit, sample it properly. Benjamin Moore's sampling tips recommend brushing out at least two coats and moving a sample board around the room throughout the day to see it in different light. In an open plan, put a sample on a wall in each zone. The same color can look warm by the kitchen window and gray in a darker corner of the living room.
Build a whole house color palette, not a list of favorites
Once the main color is set, I build a small family around it. Benjamin Moore describes a whole house palette as six or seven hues: a dominant color, a few secondary colors, a trim color and an accent. For most open plans I keep it even simpler:
- Main wall color. The color you see most, on the walls that connect the spaces.
- One or two supporting colors. Lighter or deeper versions of the same color family, for a hallway, a nook or a ceiling.
- Trim color. One white or one soft neutral for every door, window and baseboard in the open space.
- One accent. A deeper color you repeat in small doses: an island, a built-in, a front door, a pillow.
The key is undertone. If your main color is a warm greige, the supporting colors should be warm too. Mixing a cool gray in the kitchen with a creamy beige in the living room is what makes an open space look slightly off.
Image via Jill Seidner Interior Design on Pinterest (originally from Studio McGee). View the pin
Quiet neutral walls let the wood built-ins, the leather sofa and the art carry the color. That same calm base is what lets an open space read as one room.
Make the paint flow between rooms
Paint flow between rooms is about gentle steps, not big jumps. Sherwin-Williams notes that moving from lighter to darker shades creates a natural flow that guides the eye, and that you will often see several colors at the same time in an open space.
Where should a color change? I look for a natural break:
- An inside corner, never the middle of a flat wall.
- A change in ceiling height, a beam or a soffit.
- A hallway or doorway that leads out of the open space.
- A wall that is fully its own plane, like the wall behind a dining table.
No clean break? Keep the main color going.
Image via Jill Seidner Interior Design on Pinterest (originally from The Lifestyled Co). View the pin
The kitchen, dining and living areas share the same light walls, so the eye moves through the whole space without stopping.
When an accent wall works in an open concept space
An accent wall in an open concept space can be lovely, but only when it has a reason to be there. I use one to define a zone that has no walls of its own: a dining area, a reading corner or the wall behind a fireplace. The Sherwin-Williams color blog makes the same point: in an open floor plan clashing colors can lead to chaos, so stick with neutrals or hues from the same color family, and use accent colors to help a fireplace or gallery wall stand out.
My rules for an accent wall in an open plan:
- Pick a wall that is a focal point already, with art, a fireplace or a dining table in front of it.
- Take the color from your palette, so it relates to the main color.
- Repeat it somewhere else you can see, like the island, a lamp or a pillow, so it does not feel stranded.
Image via Jill Seidner Interior Design on Pinterest (originally from Sheerluxe). View the pin
A creamy off-white wall keeps this dining nook calm, and the brown banquette and wood chairs bring the deeper accent.
Light, sheen and trim: the details that tie it together
An open plan usually has windows on one side and darker corners on the other, so the same color has to work in both. Sherwin-Williams' guide to room orientation explains that north-facing rooms get the least light and cool light, so colors with cool undertones can feel flat there, and it suggests looking at a color's light reflectance value, measured from 0 to 100. If your open space faces north, lean toward warm undertones and a higher LRV for the main color.
Sheen matters too, because a big open wall shows every change in finish. In Benjamin Moore's finish guide, eggshell is listed for walls in living rooms, dining rooms and bedrooms, and pearl or satin for high-traffic walls and trim. I keep one wall sheen and one trim color across the whole open space.
Finally, let the furniture finish the job. Sherwin-Williams suggests tying the space together with decor that pulls in all your paint colors, and I agree: a rug or a piece of art that holds the main color and the accent makes the whole palette feel planned.
Image via Jill Seidner Interior Design on Pinterest (originally from One Kindesign). View the pin
One white runs through the lounge, the game table and the dining area, and the gray sofa and green pillows add the color. An easy palette to copy in any open floor plan.
My open floor plan paint checklist
Stand in your favorite spot and note everything you can see. Choose the main color in the central space first and sample it in every zone. Build a small palette in one undertone, with one trim color and one accent. Change color only at a natural break, and keep one wall sheen across the open area. If you love seeing how colors are trending, my paint and color trends report is a good place to look for ideas, and my exterior paint colors guide helps you carry the palette outside so the whole house feels connected.
Paint Colors for Open Floor Plan FAQ
Should an open floor plan be all one paint color?
Not always, but one main color on most walls is the easiest way to make an open space flow. Add a supporting color or an accent only where there is a natural break or a focal point.
How many paint colors should I use in an open concept space?
For most open plans I use three or four: a main wall color, one supporting shade, a trim color and one accent, all in the same undertone.
Where do you stop paint in an open floor plan?
Stop or change color at an inside corner, a beam, a change in ceiling height or a doorway. Avoid stopping in the middle of a flat wall.
Want help with your room?
Want me to pick the palette with you? I can choose colors for your open space room by room, online.
Doing it yourself? My mood boards show real color palettes and finishes that work together.
