Gray Stone → Sherwin Williams
The closest Sherwin Williams matches for PPG Gray Stone (PPG0999-4), ranked by perceptual color distance.
Finding a Sherwin Williams Equivalent for Gray Stone
If you love PPG Gray Stone but need a Sherwin Williams alternative, you are not alone. This is one of the most common cross-brand paint matching searches, whether you are working with a painter who prefers Sherwin Williams, your local store does not carry PPG, or you simply want to compare prices across brands before committing.
Gray Stone (PPG0999-4) is a medium-dark gray with warm medium-dark gray undertones. A warm, medium-dark gray with stone-like undertones. Deeper than Cool Concrete, with the warm, organic quality of natural stone. PPG's go-to for substantial accent grays. To find a good Sherwin Williams match, we need a color that captures not just the right depth (LRV 26) but also that specific undertone character. That is where Delta E color science comes in.
We calculated the perceptual color distance between Gray Stone and every Sherwin Williams color using the CIE2000 Delta E formula, which measures how different two colors look to the human eye. A Delta E under 2 means most people cannot tell the colors apart. Between 2 and 4, you might notice a difference in certain lighting. Above 5, the difference is clearly visible side by side.
The results are decent but not perfect. The closest Sherwin Williams option is Pewter Cast (SW 7673) with a Delta E of 4, which is a "good match" level match. Pewter Cast is close. Similar depth and warm character. You will want to test a sample before committing, as the difference may be noticeable in certain lighting.
Sherwin Williams Matches for Gray Stone
Pewter Cast is close. Similar depth and warm character.
| Gray Stone | Pewter Cast | |
|---|---|---|
| LRV | 26 | 18 |
| Hex | #9D9B97 | #8E8B86 |
| Undertone | Warm Medium-Dark Gray | Warm Dark Gray |
| Family | Gray | Gray |
Undertone Comparison
Gray Stone has warm medium-dark gray undertones. A warm, medium-dark gray with stone-like undertones. Deeper than Cool Concrete, with the warm, organic quality of natural stone. PPG's go-to for substantial accent grays.
Pewter Cast has warm dark gray undertones. A dark warm gray. Rich and sophisticated.
These two colors share the same undertone family, which is a good sign for a cross-brand swap. The undertone similarity means they will behave similarly as lighting changes throughout the day, and they should coordinate well with the same accent colors, trim, and furnishings.
How These Colors Behave in Different Lighting
Gray Stone in Your Room
The stone warmth is consistent. In bright rooms, the warm gray is grounding and sophisticated. In dim rooms, it deepens into a rich, warm dark neutral.
Pewter Cast in Your Room
Warm and substantial. A solid dark gray.
LRV and Brightness
Gray Stone has an LRV of 26, while Pewter Cast has an LRV of 18. That means Gray Stone reflects noticeably more light. In the same room, Gray Stone will make the space feel brighter and more open than Pewter Cast. If you are switching to the Sherwin Williams option, expect the room to feel slightly more intimate and cozy.
Best Rooms for Gray Stone
PPG recommends Gray Stone for: accent wall, exterior, office, cabinets, bathroom vanity. With an LRV of 26, this is a medium-dark color that is in the medium range, adding real depth and presence to a room. It works best in rooms with good natural light or as an accent wall color. In smaller or darker rooms, pair it with bright white trim to keep the space from feeling closed in.
Pewter Cast is recommended for: accent wall, cabinets, exterior, office. Both colors are recommended for similar applications, which confirms that this is a practical cross-brand match. You can use Pewter Cast in the same rooms you planned for Gray Stone.
Gray Stone in Other Brands
Looking for Gray Stone equivalents in other brands besides Sherwin Williams? We have matches across all major paint brands.
Frequently Asked Questions
The closest Sherwin Williams match for Gray Stone (PPG0999-4) is Pewter Cast (SW 7673) with a Delta E of 4, which rates as a "good match" match. Pewter Cast is close. Similar depth and warm character. Delta E measures perceptual color distance on a scale where under 2 means nearly identical, 2 to 4 means close with subtle differences, and over 5 means clearly noticeable.
No, they are not identical. Gray Stone is a PPG color with warm medium-dark gray undertones and an LRV of 26. Pewter Cast is a Sherwin Williams color with warm dark gray undertones and an LRV of 18. With a Delta E of 4, the difference is subtle and mainly visible in direct side-by-side comparison. Paint formulations differ between brands, so even colors with similar values can look slightly different due to pigment concentration, binders, and finish.
With a Delta E of 4, the difference is enough that they should not be used on adjacent walls in the same room. You can use them in separate rooms of the same house, but be aware that walking from one room to the other may reveal the difference, especially if the rooms have similar lighting. For the most consistent look, pick one brand for all connected living spaces and reserve the other brand for visually separate rooms like bathrooms or bedrooms behind closed doors.
There are several practical reasons to look for a Sherwin Williams equivalent. Price differences between brands can be significant on large projects. Availability matters if your nearest paint store or home center specializes in Sherwin Williams. Some painters have strong preferences for one brand's formula based on coverage, dry time, or workability. And if you are touching up existing Sherwin Williams work, matching within the same brand gives you the best consistency for seamless results.
Match calculations use Delta E (CIE2000) computed from Lab color space conversion. Color data sourced from manufacturer specifications. Last reviewed: March 22, 2026.