Amherst Gray vs Sea Serpent
Amherst Gray (Benjamin Moore) and Sea Serpent (Sherwin-Williams) come from different manufacturers. Amherst Gray reads as grey, while Sea Serpent reads as blue — two distinct hue families, not close cousins. The 12-point LRV gap — 19 for Amherst Gray vs 7 for Sea Serpent — means Amherst Gray will open up a space more effectively. Where Amherst Gray leans yellow, Sea Serpent reads cool — a distinction that shifts noticeably depending on the light source and surrounding finishes. A ΔE of 21.0 puts these firmly in different territory — two distinct design choices rather than close alternatives. Below you'll find 7 real-room photo comparisons where both colors appear side by side, plus 5 simulated room previews.
Amherst Gray vs Sea Serpent in Real Spaces
7 real rooms side by side. Seeing Amherst Gray and Sea Serpent 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
A living room wall sees more varied light than almost any other surface in the house, which makes the choice between these two more nuanced than a chip suggests. Amherst Gray reflects noticeably more light off the walls, making the space read more open than Sea Serpent.
Bedroom
Bedrooms are typically lit with warmer, lower light than the rest of the house — a condition that flatters warm tones and deepens cool ones. Amherst Gray returns significantly more light to the room — in a smaller or darker space, that difference in perceived brightness is hard to miss.
Dining Room
Dining rooms often rely on warm incandescent or candlelight, which flatters warm undertones and mutes cool ones. The LRV gap is large enough that Amherst Gray will make the room feel meaningfully brighter than Sea Serpent would.
Bathroom
Small bathrooms intensify color. A shade that seems quiet in a larger room can feel immersive when you're surrounded by it on four walls. Amherst Gray returns significantly more light to the room — in a smaller or darker space, that difference in perceived brightness is hard to miss.
House
A full exterior is the most demanding test for a paint color — scale and outdoor light both amplify differences that seem small on a swatch. Amherst Gray returns significantly more light to the room — in a smaller or darker space, that difference in perceived brightness is hard to miss.
Front Door
On a front door, the color is both the first and last thing you see — a context where even a modest tonal difference reads clearly. Amherst Gray reflects noticeably more light off the walls, making the space read more open than Sea Serpent.
Kitchen Cabinets
Cabinet color is always seen in context — against countertops, backsplash, and hardware — which amplifies undertone differences that might disappear on a plain wall. Amherst Gray returns significantly more light to the room — in a smaller or darker space, that difference in perceived brightness is hard to miss.
Color Details
Amherst Gray vs Sea Serpent Simulated Comparison
5 simulated room previews — drag the slider on each to see Amherst Gray on one side and Sea Serpent 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 Amherst Gray comparisons
See how Amherst Gray stacks up against other well-photographed colors across different brands and tones.
