Cathedral Gray vs Pewter Green
Where Cathedral Gray belongs to Behr's range, Pewter Green is a Sherwin-Williams color. Cathedral Gray reads as grey, while Pewter Green reads as green-grey — two distinct hue families, not close cousins. Cathedral Gray (LRV 40) reflects noticeably more light than Pewter Green (LRV 12), a difference of 29 points that becomes especially apparent in rooms with limited natural light. Cathedral Gray runs red while Pewter Green is decidedly neutral, which means they'll respond very differently to warm vs cool light sources. With a ΔE of 29.1, the contrast is hard to miss. These aren't variations on a theme — they're two different answers to the same question. Below you'll find 4 real-room photo comparisons where both colors appear side by side, plus 5 simulated room previews.
Cathedral Gray vs Pewter Green in Real Spaces
4 real rooms side by side. Seeing Cathedral Gray and Pewter Green 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
In a living room, color works across both daylight and evening light — the same wall can read very differently at noon and at 8pm. The LRV gap is large enough that Cathedral Gray will make the room feel meaningfully brighter than Pewter Green would.
Dining Room
A dining room lit by a dimmed pendant or candles is one of the most forgiving environments for paint — warm light softens almost everything. Cathedral Gray returns significantly more light to the room — in a smaller or darker space, that difference in perceived brightness is hard to miss.
Bathroom
Bathrooms are one of the few spaces where you're genuinely enclosed by the paint color, which makes the choice between these two more consequential. Cathedral Gray reflects noticeably more light off the walls, making the space read more open than Pewter Green.
Kitchen Cabinets
Kitchen cabinets are constantly compared against adjacent materials, which means subtle differences between these two become much more visible. Cathedral Gray reflects noticeably more light off the walls, making the space read more open than Pewter Green.
Color Details
Cathedral Gray vs Pewter Green Simulated Comparison
5 simulated room previews — drag the slider on each to see Cathedral Gray 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 Cathedral Gray comparisons
See how Cathedral Gray stacks up against other well-photographed colors across different brands and tones.
