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CoastalSouth-Facing

Sea Urchin 4

Dulux

The Analysis

Sea Urchin 4 is a muted, cool-toned aqua that reflects light effectively due to its high LRV of 61.51. It brightens dim areas without being aggressive, creating an expansive, airy feeling that helps smaller rooms appear less confined.

This is an ideal main wall colour for living areas or bedrooms where you want a hint of colour without committing to a bold pigment. It functions as a sophisticated neutral that grounds a space while adding more character than standard white or grey.

LRV 62

History & Origin

This colour leans into a modern, contemporary aesthetic. It avoids traditional period-specific ties, making it a versatile choice for fresh, updated interior renovations.

Undertonecool
FamilyGreen

How to Use It

It pairs beautifully with light oak or walnut wood tones, as the natural warmth balances the cool paint. For hardware, matte black provides a sharp, modern contrast, while brushed brass adds a touch of necessary warmth to the room.

The Mood

Living with this shade is consistently restful and clean. Because it lacks harsh yellow or overly saturated blue undertones, it provides a stable, calming background that won't overwhelm your senses after a long day.

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.

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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    • 5500K