Japanese Seaweed
Valspar · V143-6
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The Analysis
Japanese Seaweed is a very dark, muted olive-green that absorbs a significant amount of light due to its low LRV of 7.3. Because it reflects so little light, it will make a room feel smaller and more enclosed, creating an intimate, cave-like atmosphere.
Due to its intensity, it works best as a bold, moody accent wall or for complete color-drenching in a small study or bedroom. It is too dark for a primary wall color in a standard-sized room unless you are intentionally aiming for a dramatic, moody aesthetic.
LRV 7History & Origin
This shade fits well within a moody, modern-traditional aesthetic that draws inspiration from heritage colors. It bridges the gap between classic forest greens and contemporary, earth-toned design trends.
How to Use It
Pair this with warm walnut wood tones and brushed brass hardware to cut through the darkness. It also looks sharp with matte black finishes, though be careful to add texture like linen or velvet to prevent the space from feeling too clinical.
The Mood
This color is inherently restful and grounding, acting as a neutral anchor rather than an energizing pop of color. It is excellent for spaces where you want to signal to your brain that it is time to slow down and decompress.
Colour harmonies
Complementary
Opposite on the colour wheel — bold, high-contrast pairings. Use for a feature wall or furniture you want to command attention.
Analogous
Neighbouring hues — cohesive and calm, great for layered schemes that feel collected rather than matched.
Split complementary
Near-opposites for strong contrast with a little less tension than a pure complement. A favourite of interior designers.
Triadic
Three evenly spaced hues — balanced, vibrant, and versatile. Keep one dominant and use the others sparingly.
Tetradic (square)
Four hues in a square on the wheel — rich, dynamic palettes. Best when one colour leads and the others accent.
Monochromatic
Dark, mid, and light steps on the same hue — a failsafe gradient for trim, walls, and accents without shifting colour family.
Add harmony palette to a room
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Brand Matches
Perceptually similar colours from across all brands in our database.
Lighting
See how this colour shifts across natural and artificial light conditions.
- Natural