Seaweed
What Seaweed Actually Looks Like
Seaweed is a rich, dark forest green. It sits firmly on the deep end of the green spectrum, closer to the shadowy interior of a dense canopy than to any sage or olive territory. In bright natural light it reads as a true, full-bodied green. In low light or north-facing rooms it can shift almost to black-green, losing its mid-tone character entirely. This is a color that commits.
Seaweed Undertones
The RGB breakdown tells a clear story: this is a cool-leaning green with blue depth in the shadows. There is no meaningful yellow or olive pull, and no warmth to speak of. In direct sun you may catch a slight blue-green quality at the edges, but it reads as a straightforward deep green in most conditions.
Where Seaweed Works Best
Because the LRV sits below 12, Seaweed absorbs a lot of light. That makes it a strong choice for rooms where you want atmosphere and enclosure rather than brightness. Think accent walls, exterior trim and shutters, front doors, or fully committed whole-room treatments in larger spaces with generous window area. It can feel heavy in small windowless rooms, so consider the footprint and light source carefully before going all in.
Where to put Seaweed
On all four walls in a living room, Seaweed creates a moody, enveloping effect. It works best in rooms with at least one large south or west-facing window. Balance it with warm white trim and natural wood tones to keep the space from reading cold.
Deep greens have a long track record in dining rooms, and Seaweed fits that tradition well. Candlelight and warm pendant lighting bring out the color's richness and offset its cool undertone. A lighter ceiling keeps the volume from collapsing.
If you want a focused, serious workspace, Seaweed delivers. It reduces visual noise without being a neutral. Pair it with a white or warm linen ceiling and good task lighting, since the low LRV means the room will need more artificial light than a mid-tone would.
Seaweed is available in exterior finishes, and it reads boldly on a front door or shutters against white, cream, or gray siding. As a full exterior body color it makes a dramatic statement and suits craftsman or cottage-style homes particularly well.
In a bathroom with solid natural light, Seaweed can feel spa-like and grounded. In a windowless bathroom, it will read very dark and may feel confining. If you go this route in a small bath, keep fixtures and hardware bright to give the eye somewhere to land.
What to Pair With Seaweed
No coordinating colors are specified in our database for this color, so pair suggestions here are based on established color principles for deep saturated greens at this depth.
You Might Also Like
Colors that clash with Seaweed
Seaweed's blue-green depth will amplify any cool gray or blue in adjacent rooms or on trim, pushing the whole scheme toward cold and clinical.
With an LRV below 12, this color drinks light. In a north-facing or windowless room it can read so dark that the green quality disappears entirely.
Seaweed in a small powder room or narrow hallway with no windows will feel confining rather than cozy.
Common questions
The LRV is 11.8, which is very low. That means the color reflects only a small fraction of available light back into the room. Practically, you need more light sources than you would with a mid-tone, and the color will read darker on large surfaces than it does on a small chip or sample card.
An eggshell finish gives you enough sheen to keep the color from looking flat while staying forgiving on imperfect surfaces. Matte works if you want maximum depth and no reflection. Avoid high gloss on walls since it will amplify the color's intensity and show every texture in the surface.
Yes. A front door is one of the best uses for this color. The contained surface area lets the deep green make an impression without overwhelming, and a semi-gloss or gloss finish appropriate for exterior doors will give it life in changing light throughout the day.
Yes. Benjamin Moore offers this color in both interior and exterior formulations.