Undersea vs Guilford Green
Undersea (Behr) and Guilford Green (Benjamin Moore) come from different manufacturers. Hue-wise, Undersea belongs to the blue-grey family and Guilford Green to the beige-green family. The 48-point LRV gap — 57 for Guilford Green vs 9 for Undersea — means Guilford Green will open up a space more effectively. Where Undersea leans blue, Guilford Green reads yellow — a distinction that shifts noticeably depending on the light source and surrounding finishes. A ΔE of 49.8 puts these firmly in different territory — two distinct design choices rather than close alternatives. Below you'll find 2 real-room photo comparisons where both colors appear side by side, plus 5 simulated room previews.
Undersea vs Guilford Green in Real Spaces
2 real rooms side by side. Seeing Undersea and Guilford 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
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. Guilford Green reflects noticeably more light off the walls, making the space read more open than Undersea.
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. Guilford Green returns significantly more light to the room — in a smaller or darker space, that difference in perceived brightness is hard to miss.
Color Details
Undersea vs Guilford Green Simulated Comparison
5 simulated room previews — drag the slider on each to see Undersea on one side and Guilford 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 Undersea comparisons
See how Undersea stacks up against other well-photographed colors across different brands and tones.
