Mermaid Sea vs Pewter Green
Where Mermaid Sea belongs to Behr's range, Pewter Green is a Sherwin-Williams color. Mermaid Sea reads as blue, while Pewter Green reads as green-grey — two distinct hue families, not close cousins. They have nearly identical light reflectance values (13 vs 12), so they'll read as similarly Dark in most lighting conditions. Mermaid Sea runs green and blue while Pewter Green is decidedly neutral, which means they'll respond very differently to warm vs cool light sources. With a ΔE of 27.6, the contrast is hard to miss. These aren't variations on a theme — they're two different answers to the same question. Below you'll find 6 real-room photo comparisons where both colors appear side by side, plus 5 simulated room previews.
Mermaid Sea vs Pewter Green in Real Spaces
6 real rooms side by side. Seeing Mermaid Sea and Pewter Green in actual rooms makes the difference concrete; browse the spaces below to get a feel for how each color lives on a wall.
Living Room
In a living room, color works across both daylight and evening light — the same wall can read very differently at noon and at 8pm. The temperature contrast between Pewter Green and Mermaid Sea is what sets these apart most in this context.
Bedroom
The context that matters most in a bedroom is how a color reads under a bedside lamp at night, not under noon daylight. Pewter Green brings more warmth to the space, while Mermaid Sea keeps things cooler and crisper.
Kitchen
In a kitchen, colors are seen under bright task lighting that amplifies undertones — what reads neutral elsewhere can show its hand here. Pewter Green brings more warmth to the space, while Mermaid Sea keeps things cooler and crisper.
Bathroom
Bathrooms are one of the few spaces where you're genuinely enclosed by the paint color, which makes the choice between these two more consequential. Pewter Green brings more warmth to the space, while Mermaid Sea keeps things cooler and crisper.
House
Seen across an entire facade, subtle tonal differences become pronounced. What reads as nearly the same on a chip often reads as clearly different at scale. Pewter Green brings more warmth to the space, while Mermaid Sea keeps things cooler and crisper.
Kitchen Cabinets
Kitchen cabinets are constantly compared against adjacent materials, which means subtle differences between these two become much more visible. Pewter Green brings more warmth to the space, while Mermaid Sea keeps things cooler and crisper.
Color Details
Mermaid Sea vs Pewter Green Simulated Comparison
5 simulated room previews — drag the slider on each to see Mermaid Sea on one side and Pewter Green on the other.
Digital color is approximate. These simulations are generated from the manufacturer's hex values and overlaid on grayscale room photos — your screen's calibration, brightness, and viewing angle all affect how they render. Before committing to either color, test physical samples in your own space under the light you actually live with.
More Mermaid Sea comparisons
See how Mermaid Sea stacks up against other well-photographed colors across different brands and tones.
Ammonite reflects far more light (LRV 69 vs 13), opening up a space where Mermaid Sea encloses it.
At LRV 83 vs 13, White Dove is decisively the brighter choice.
A 7-point LRV gap (13 vs 6) makes Mermaid Sea the marginally brighter of the two.
Purbeck Stone reflects far more light (LRV 52 vs 13), opening up a space where Mermaid Sea encloses it.
Evergreen Fog reflects far more light (LRV 30 vs 13), opening up a space where Mermaid Sea encloses it.
At LRV 52 vs 13, Mizzle is decisively the brighter choice.
Agreeable Gray reflects far more light (LRV 60 vs 13), opening up a space where Mermaid Sea encloses it.
At LRV 58 vs 13, Accessible Beige is decisively the brighter choice.
At LRV 27 vs 13, Denim Drift is decisively the brighter choice.
French Gray reflects far more light (LRV 43 vs 13), opening up a space where Mermaid Sea encloses it.
Mermaid Sea reads slightly lighter (LRV 13 vs 4), a gap that shows most in low-lit rooms.
At LRV 55 vs 13, Tranquil Dawn is decisively the brighter choice.
Their light reflectance is nearly identical (LRV 13 vs 13), so neither reads brighter in a room.
At LRV 44 vs 13, Hardwick White is decisively the brighter choice.
Pure White reflects far more light (LRV 84 vs 13), opening up a space where Mermaid Sea encloses it.
Artichoke reads slightly lighter (LRV 21 vs 13), a gap that shows most in low-lit rooms.
At LRV 66 vs 13, Balboa Mist is decisively the brighter choice.
At LRV 74 vs 13, Shoji White is decisively the brighter choice.
At LRV 83 vs 13, Snowbound is decisively the brighter choice.
Pigeon reflects far more light (LRV 51 vs 13), opening up a space where Mermaid Sea encloses it.
A 5-point LRV gap (13 vs 8) makes Mermaid Sea the marginally brighter of the two.
At LRV 68 vs 13, Skimming Stone is decisively the brighter choice.
Dix Blue reflects far more light (LRV 41 vs 13), opening up a space where Mermaid Sea encloses it.
Their light reflectance is nearly identical (LRV 13 vs 12), so neither reads brighter in a room.
At LRV 45 vs 13, Saybrook Sage is decisively the brighter choice.
Pale Green reflects far more light (LRV 31 vs 13), opening up a space where Mermaid Sea encloses it.
Mermaid Sea reads slightly lighter (LRV 13 vs 7), a gap that shows most in low-lit rooms.