Sea Urchin 5
Dulux
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The Analysis
Sea Urchin 5 is a pale, cool-toned green with a grey undertone that acts as a neutral. With an LRV of 70.87, it reflects a high amount of light, helping to brighten dim spaces and make small rooms feel significantly more open.
This is an ideal 'whole-house' neutral that works perfectly as a primary wall colour. Because it is subtle, it serves as a reliable backdrop that allows furniture and artwork to stand out without clashing.
LRV 71History & Origin
While it has a crispness that suits modern architecture, this shade leans into a timeless, updated traditional aesthetic. It fits well in contemporary renovations that value a clean, muted palette over stark, gallery-white walls.
How to Use It
It pairs beautifully with light oak or walnut wood tones and matte black hardware for a high-contrast, modern look. Use it in kitchens, bathrooms, or bedrooms where you want to maintain a bright, airy feel.
The Mood
Living with this colour feels clean and stable rather than overwhelming. It is a restful shade that reduces visual clutter, making it a great choice for areas where you want a calm, unfussy environment.
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
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