Sea Serpent
Sherwin-Williams · SW7615
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The Analysis
Sea Serpent is a deep, moody blue-grey that absorbs a significant amount of light due to its low LRV of 6.7. Because it is so dark, it will make a room feel more intimate and enclosed rather than spacious or bright.
This shade is best used as a bold accent wall, on cabinetry, or in a dedicated library or media room. It is too heavy for a primary wall color in small rooms unless you are intentionally aiming for a 'jewel box' dramatic effect.
LRV 7History & Origin
While it draws on the deep, saturated blues common in Victorian studies and libraries, it feels decidedly modern today. It fits current trends favoring high-contrast, moody interiors over traditional light and airy palettes.
How to Use It
Pair this with warm wood tones like walnut or teak to keep the room from feeling too cold. Use aged brass hardware for a classic touch, or matte black fixtures for a sharp, contemporary look.
The Mood
This color promotes a sense of grounded stability and restfulness, making it ideal for spaces where you want to disconnect. It feels sophisticated and serious, providing a quiet backdrop that reduces visual clutter.
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.
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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