Cornwall Slate vs Dusty Heather
Cornwall Slate and Dusty Heather come from the same Sherwin-Williams collection. Cornwall Slate reads as grey, while Dusty Heather reads as blue-grey — two distinct hue families, not close cousins. Their light reflectance values are nearly the same — 29 vs 28 — so neither will read significantly brighter or darker than the other. Where Cornwall Slate leans neutral, Dusty Heather reads cool — a distinction that shifts noticeably depending on the light source and surrounding finishes. A ΔE of 17.7 puts these firmly in different territory — two distinct design choices rather than close alternatives. Below you'll find 4 real-room photo comparisons where both colors appear side by side, plus 5 simulated room previews.
Cornwall Slate vs Dusty Heather in Real Spaces
4 real rooms side by side. Seeing Cornwall Slate and Dusty Heather 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. Dusty Heather brings more warmth to the space, while Cornwall Slate keeps things cooler and crisper.
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. Cornwall Slate reads more restrained here, while Dusty Heather adds a sense of enclosure and warmth.
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. Cornwall Slate reads more restrained here, while Dusty Heather adds a sense of enclosure and warmth.
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. Cornwall Slate reads more restrained here, while Dusty Heather adds a sense of enclosure and warmth.
Color Details
Cornwall Slate vs Dusty Heather Simulated Comparison
5 simulated room previews — drag the slider on each to see Cornwall Slate on one side and Dusty Heather 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.