Coastal Fog → Farrow & Ball
The closest Farrow & Ball matches for Benjamin Moore Coastal Fog (AC-1), ranked by perceptual color distance.
Finding a Farrow & Ball Equivalent for Coastal Fog
If you love Benjamin Moore Coastal Fog but need a Farrow & Ball 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 Farrow & Ball, your local store does not carry Benjamin Moore, or you simply want to compare prices across brands before committing.
Coastal Fog (AC-1) is a light gray with cool green-gray undertones. A light, cool gray with subtle green. Coastal and serene. To find a good Farrow & Ball match, we need a color that captures not just the right depth (LRV 66.28) but also that specific undertone character. That is where Delta E color science comes in.
We calculated the perceptual color distance between Coastal Fog and every Farrow & Ball 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 good news: there is a strong Farrow & Ball match for Coastal Fog. Ammonite (No.274) comes in with a Delta E of 2, which puts it in the "excellent match" range. Ammonite is the closest Farrow & Ball option at LRV 66. Very close match with F&B's signature chalky depth.
Farrow & Ball Matches for Coastal Fog
Ammonite is the closest Farrow & Ball option at LRV 66. Very close match with F&B's signature chalky depth.
| Coastal Fog | Ammonite | |
|---|---|---|
| LRV | 66.28 | 66 |
| Hex | #D7D5CF | #DAD5CD |
| Undertone | Cool Green-Gray | Warm Stone |
| Family | Gray | Gray |
Undertone Comparison
Coastal Fog has cool green-gray undertones. A light, cool gray with subtle green. Coastal and serene.
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.
The undertone difference is worth paying attention to. While they are close in overall appearance, the different undertones mean they may diverge in certain lighting. Coastal Fog's cool green-gray quality may read differently than Ammonite's warm stone character, especially in rooms with strong directional light or colored accents that could pull out one undertone more than the other. Test a sample in your specific room before committing.
How These Colors Behave in Different Lighting
Coastal Fog in Your Room
Cool and clean. The green is very subtle. Modern and calming.
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.
LRV and Brightness
Coastal Fog has an LRV of 66.28, while Ammonite has an LRV of 66. 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 Coastal Fog
Benjamin Moore recommends Coastal Fog for: bathroom, bedroom, living room, hallway. With an LRV of 66.28, 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.
Ammonite is recommended for: living room, bedroom, hallway, whole house, bathroom. 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.
Coastal Fog in Other Brands
Looking for Coastal Fog equivalents in other brands besides Farrow & Ball? We have matches across all major paint brands.
Frequently Asked Questions
The closest Farrow & Ball match for Coastal Fog (AC-1) is Ammonite (No.274) with a Delta E of 2, which rates as a "excellent match" match. Ammonite is the closest Farrow & Ball option at LRV 66. Very close match with F&B's signature chalky depth. 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. Coastal Fog is a Benjamin Moore color with cool green-gray undertones and an LRV of 66.28. Ammonite is a Farrow & Ball color with warm stone undertones and an LRV of 66. With a Delta E of 2, these are extremely close and most people will not spot the difference on a wall. 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 2, these colors are close enough to use in separate rooms of the same house without a jarring difference. However, avoid painting them on adjacent walls in the same room, as even subtle differences become apparent at a hard edge where two paints meet. For the smoothest result, use one brand consistently within each connected space and reserve the other brand for rooms that are visually separated.
There are several practical reasons to look for a Farrow & Ball equivalent. Price differences between brands can be significant on large projects. Availability matters if your nearest paint store or home center specializes in Farrow & Ball. Some painters have strong preferences for one brand's formula based on coverage, dry time, or workability. And if you are touching up existing Farrow & Ball 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.