Seawashed Glass
Sherwin-Williams · SW9034
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The Analysis
Seawashed Glass is a mid-toned green with a notable grey undertone, giving it a muted, grounded quality rather than a neon pop. With an LRV of 48.3, it absorbs a fair amount of light, which prevents it from feeling too sterile or bright while making a room feel cozy and contained rather than expansive.
This is an excellent choice for a main wall colour in spaces where you want a sense of permanence. It functions best as a sophisticated backdrop that anchors furniture rather than competing with your decor as a bold accent.
LRV 48History & Origin
This shade leans toward a modern, organic aesthetic. While green has been used throughout history, this specific muted, grey-green is a hallmark of contemporary design that values natural, earth-inspired palettes.
How to Use It
It pairs beautifully with warm oak wood tones and matte black hardware for a sharp, modern contrast. Use it in bedrooms or home offices where you want to promote focus and relaxation.
The Mood
Living with this colour feels restful and balanced. Because it mimics natural foliage, it acts as a neutral that calms the visual noise of a room without feeling clinical or boring.
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