Slippery Shale vs Pewter Green
Where Slippery Shale belongs to Behr's range, Pewter Green is a Sherwin-Williams color. Hue-wise, Slippery Shale belongs to the grey family and Pewter Green to the green-grey family. Slippery Shale (LRV 18) reflects noticeably more light than Pewter Green (LRV 12), a difference of 7 points that becomes especially apparent in rooms with limited natural light. Slippery Shale runs red while Pewter Green is decidedly neutral, which means they'll respond very differently to warm vs cool light sources. The ΔE 9.6 gap is real but not dramatic — close enough to use together, distinct enough to matter as a choice. Below you'll find 2 real-room photo comparisons where both colors appear side by side, plus 5 simulated room previews.
Slippery Shale vs Pewter Green in Real Spaces
2 real rooms side by side. Slippery Shale and Pewter Green 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.
House
Seen across an entire facade, subtle tonal differences become pronounced. What reads as nearly the same on a chip often reads as clearly different at scale. Slippery Shale reads slightly lighter here — a subtle but real difference in how open the space feels.
Kitchen Cabinets
Kitchen cabinets are constantly compared against adjacent materials, which means subtle differences between these two become much more visible. Slippery Shale reads slightly lighter here — a subtle but real difference in how open the space feels.
Color Details
Slippery Shale vs Pewter Green Simulated Comparison
5 simulated room previews — drag the slider on each to see Slippery Shale on one side and Pewter Green 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 Slippery Shale comparisons
See how Slippery Shale stacks up against other well-photographed colors across different brands and tones.
