Sea Urchin 6
Dulux
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The Analysis
Sea Urchin 6 is an off-white with a distinct, cool green-grey undertone that prevents it from looking stark. Because of its high LRV of 81.47, it reflects a significant amount of light, making small or cramped rooms feel noticeably more open and spacious.
This is an ideal workhorse neutral for large, open-plan areas where you want a consistent look without using plain white. It serves best as a primary wall colour, providing just enough character to be interesting without overpowering your furniture.
LRV 81History & Origin
This colour leans toward a modern, contemporary aesthetic rather than a traditional period look. It fits well in updated homes that value clean lines and a sense of architectural clarity.
How to Use It
It pairs beautifully with light oak or ash wood tones and matte black hardware for a sharp, modern contrast. It excels in bathrooms or kitchens where you want a crisp, hygienic feel, or in bedrooms to promote a sense of quiet.
The Mood
This shade provides a calm, steady backdrop that feels clean rather than clinical. It’s a restful choice for daily living because it lacks the yellow warmth that can sometimes make a room feel cluttered or over-stimulated.
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
- Morning
- Afternoon
- Evening
- Overcast
- 2700K
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