Ammonite → PPG
The closest PPG matches for Farrow & Ball Ammonite (No.274), ranked by perceptual color distance.
Finding a PPG Equivalent for Ammonite
If you love Farrow & Ball Ammonite but need a PPG 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 PPG, your local store does not carry Farrow & Ball, or you simply want to compare prices across brands before committing.
Ammonite (No.274) is a light gray with warm stone undertones. A light, warm gray with organic, stone-like undertones. Named after the fossilized shell, it captures that natural, earthy quality. To find a good PPG match, we need a color that captures not just the right depth (LRV 66) but also that specific undertone character. That is where Delta E color science comes in.
We calculated the perceptual color distance between Ammonite and every PPG 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 PPG option is Mushroom Cap (PPG1024-3) with a Delta E of 5.2, which is a "good match" level match. Mushroom Cap is slightly warmer but in the same light neutral family. You will want to test a sample before committing, as the difference may be noticeable in certain lighting.
PPG Matches for Ammonite
Mushroom Cap is slightly warmer but in the same light neutral family.
| Ammonite | Mushroom Cap | |
|---|---|---|
| LRV | 66 | 62 |
| Hex | #DAD5CD | #D4CDC2 |
| Undertone | Warm Stone | Warm Mushroom Beige |
| Family | Gray | Beige |
Undertone Comparison
Ammonite has warm stone undertones. A light, warm gray with organic, stone-like undertones. Named after the fossilized shell, it captures that natural, earthy quality.
Mushroom Cap has warm mushroom beige undertones. A warm, light beige with the organic quality of a wild mushroom cap. Earthy and natural at a light depth.
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
Ammonite in Your Room
Reads as a soft, natural warm gray in most rooms. Less pink than many light grays. The earthy quality makes it pair beautifully with natural materials.
Mushroom Cap in Your Room
Warm and organic. Reads as a warm, light beige in most rooms.
LRV and Brightness
Ammonite has an LRV of 66, while Mushroom Cap has an LRV of 62. These two colors reflect a very similar amount of light, so you should not notice a significant difference in room brightness when switching between them. The room will feel approximately the same in terms of light and space, which makes this a smoother transition.
Best Rooms for Ammonite
Farrow & Ball recommends Ammonite for: living room, bedroom, hallway, whole house, bathroom. With an LRV of 66, this is a light color that is in the medium-light range, reflecting enough light to keep rooms feeling open while adding more color and depth than a white or off-white. It works well in living rooms, bedrooms, and hallways where you want warmth and character without darkness.
Mushroom Cap is recommended for: whole house, living room, bedroom, hallway, dining room. The recommended applications differ slightly between brands, but the color's properties should work in the same rooms regardless of which brand you choose. Trust the LRV and undertone data more than the specific room suggestions, and always test in your actual space.
Ammonite in Other Brands
Looking for Ammonite equivalents in other brands besides PPG? We have matches across all major paint brands.
Frequently Asked Questions
The closest PPG match for Ammonite (No.274) is Mushroom Cap (PPG1024-3) with a Delta E of 5.2, which rates as a "good match" match. Mushroom Cap is slightly warmer but in the same light neutral family. 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. Ammonite is a Farrow & Ball color with warm stone undertones and an LRV of 66. Mushroom Cap is a PPG color with warm mushroom beige undertones and an LRV of 62. With a Delta E of 5.2, you will likely notice a difference, especially in bright or direct lighting. 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 5.2, 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 PPG equivalent. Price differences between brands can be significant on large projects. Availability matters if your nearest paint store or home center specializes in PPG. Some painters have strong preferences for one brand's formula based on coverage, dry time, or workability. And if you are touching up existing PPG 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.