Cornwall Slate vs Rushing River
Both from Sherwin-Williams's palette. Hue-wise, Cornwall Slate belongs to the grey family and Rushing River to the greige-grey family. Rushing River (LRV 34) reflects noticeably more light than Cornwall Slate (LRV 29), a difference of 4 points that becomes especially apparent in rooms with limited natural light. Cornwall Slate runs neutral while Rushing River is decidedly warm, which means they'll respond very differently to warm vs cool light sources. The ΔE 4.0 gap is real but not dramatic — close enough to use together, distinct enough to matter as a choice. Below you'll find 1 real-room photo comparison where both colors appear side by side, plus 5 simulated room previews.
Cornwall Slate vs Rushing River in Real Spaces
1 real room side by side. Cornwall Slate and Rushing River 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.
Kitchen Cabinets
Kitchen cabinets are constantly compared against adjacent materials, which means subtle differences between these two become much more visible. Rushing River reads slightly lighter here — a subtle but real difference in how open the space feels.
Color Details
Cornwall Slate vs Rushing River Simulated Comparison
5 simulated room previews — drag the slider on each to see Cornwall Slate on one side and Rushing River 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 Cornwall Slate comparisons
See how Cornwall Slate stacks up against other well-photographed colors across different brands and tones.
