Cornwall Slate vs Green Earth
Both are Sherwin-Williams colors. Hue-wise, Cornwall Slate belongs to the grey family and Green Earth to the green-greige family. With LRVs of 29 and 31, they'll behave almost identically in terms of how much light they reflect back into a room. The tonal difference — Cornwall Slate's neutral character against Green Earth's warm — becomes most visible against white trim or in morning light. At ΔE 5.3, the difference is perceptible but not dramatic — the two can work harmoniously in the same space. Below you'll find 3 real-room photo comparisons where both colors appear side by side, plus 5 simulated room previews.
Cornwall Slate vs Green Earth in Real Spaces
3 real rooms side by side. Cornwall Slate and Green Earth are close enough that the difference can be hard to judge from a chip alone — these photos show how each reads at scale, across different spaces and lighting conditions.
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. Cornwall Slate reads more restrained here, while Green Earth adds a sense of enclosure and warmth.
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 Green Earth and Cornwall Slate is what sets these apart most in this context.
Kitchen Cabinets
On cabinetry, undertone and temperature become more pronounced against countertops and hardware. The temperature contrast between Green Earth and Cornwall Slate is what sets these apart most in this context.
Color Details
Cornwall Slate vs Green Earth Simulated Comparison
5 simulated room previews — drag the slider on each to see Cornwall Slate on one side and Green Earth 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.