Cornwall Slate vs Forged Steel
Both are Sherwin-Williams colors. Both sit in the grey family, which is useful context if you're narrowing within a single hue direction. At LRV 29 vs 10, Cornwall Slate will read as the brighter of the two — a 19-point gap that matters most in north-facing or low-light rooms. They share a neutral quality — useful to know if you're layering them in the same space. At ΔE 23.1, 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.
Cornwall Slate vs Forged Steel in Real Spaces
3 real rooms side by side. Seeing Cornwall Slate and Forged Steel 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. Cornwall Slate returns significantly more light to the room — in a smaller or darker space, that difference in perceived brightness is hard to miss.
House
At full exterior scale, the difference between these two colors becomes much easier to judge than from a small chip. The LRV gap is large enough that Cornwall Slate will make the room feel meaningfully brighter than Forged Steel would.
Kitchen Cabinets
On cabinetry, undertone and temperature become more pronounced against countertops and hardware. The LRV gap is large enough that Cornwall Slate will make the room feel meaningfully brighter than Forged Steel would.
Color Details
Cornwall Slate vs Forged Steel Simulated Comparison
5 simulated room previews — drag the slider on each to see Cornwall Slate on one side and Forged Steel 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.