Open Seas
Sherwin-Williams · SW6500
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The Analysis
Open Seas is a mid-tone blue with a noticeable grey-green undertone, sitting at a 39.12 LRV. Because it absorbs a fair amount of light rather than reflecting it, it will make a room feel more intimate and grounded rather than bright and expansive.
This is a versatile shade that works well as a main wall color in well-lit rooms or as a bold, sophisticated accent in smaller spaces. It is strong enough to hold its own against furniture without disappearing into the background.
LRV 39History & Origin
This is a distinctly modern choice that avoids the dated look of traditional 'nautical' blues. It fits perfectly into current design trends that favor saturated, nature-inspired tones over stark neutrals.
How to Use It
It pairs beautifully with warm wood tones like walnut or teak and matte black metal fixtures. Use it in bedrooms or home offices, and pair it with crisp white trim to keep the color from feeling too heavy.
The Mood
This color provides a calm, stable atmosphere that feels purposeful and clean. It is restful without being sleepy, making it an excellent choice for rooms where you want to focus or unwind.
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