Guilford Green vs Coastal Grey
Guilford Green is a Benjamin Moore color while Coastal Grey comes from Dulux. Hue-wise, Guilford Green belongs to the beige-green family and Coastal Grey to the blue-grey family. With LRVs of 57 and 56, they'll behave almost identically in terms of how much light they reflect back into a room. The tonal difference — Guilford Green's yellow character against Coastal Grey's cool — becomes most visible against white trim or in morning light. At ΔE 19.7, these are genuinely distinct colors — a strong contrast if used together, or a meaningful choice between two different directions. Below you'll find 3 real-room photo comparisons where both colors appear side by side, plus 5 simulated room previews.
Guilford Green vs Coastal Grey in Real Spaces
3 real rooms side by side. Seeing Guilford Green and Coastal Grey 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
Living rooms test a color across a full range of conditions — morning sun, afternoon shade, and evening lamp light all shift how both of these read. Coastal Grey reads more restrained here, while Guilford Green adds a sense of enclosure and warmth.
Bathroom
Bathrooms amplify color — the enclosed space and reflective surfaces make what reads subtle elsewhere feel more present here. The temperature contrast between Guilford Green and Coastal Grey is what sets these apart most in this context.
House
At full exterior scale, the difference between these two colors becomes much easier to judge than from a small chip. The temperature contrast between Guilford Green and Coastal Grey is what sets these apart most in this context.
Color Details
Guilford Green vs Coastal Grey Simulated Comparison
5 simulated room previews — drag the slider on each to see Guilford Green on one side and Coastal Grey 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 Guilford Green comparisons
See how Guilford Green stacks up against other well-photographed colors across different brands and tones.
