Coastal Fog → PPG
The closest PPG matches for Benjamin Moore Coastal Fog (AC-1), ranked by perceptual color distance.
Finding a PPG Equivalent for Coastal Fog
If you love Benjamin Moore Coastal Fog 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 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 PPG 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 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 good news: there is a strong PPG match for Coastal Fog. Thin Ice (PPG1001-3) comes in with a Delta E of 2.3, which puts it in the "excellent match" range. Thin Ice is the closest PPG option at LRV 64. Very close match.
PPG Matches for Coastal Fog
Thin Ice is the closest PPG option at LRV 64. Very close match.
| Coastal Fog | Thin Ice | |
|---|---|---|
| LRV | 66.28 | 64 |
| Hex | #D7D5CF | #D4D4D1 |
| Undertone | Cool Green-Gray | Cool Light Gray |
| Family | Gray | Gray |
Undertone Comparison
Coastal Fog has cool green-gray undertones. A light, cool gray with subtle green. Coastal and serene.
Thin Ice has cool light gray undertones. A very light, cool gray with minimal undertone. Like a thin sheet of ice over still water. Clean, modern, and barely there. PPG's answer to the ultra-light gray trend.
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 Thin Ice's cool light gray 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.
Thin Ice in Your Room
In bright rooms, nearly white with the faintest gray depth. In dim rooms, the gray becomes slightly more apparent. Stays neutral without pulling warm or cool.
LRV and Brightness
Coastal Fog has an LRV of 66.28, while Thin Ice has an LRV of 64. 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.
Thin Ice is recommended for: bathroom, bedroom, hallway, whole house, office. Both colors are recommended for similar applications, which confirms that this is a practical cross-brand match. You can use Thin Ice in the same rooms you planned for Coastal Fog.
Coastal Fog in Other Brands
Looking for Coastal Fog equivalents in other brands besides PPG? We have matches across all major paint brands.
Frequently Asked Questions
The closest PPG match for Coastal Fog (AC-1) is Thin Ice (PPG1001-3) with a Delta E of 2.3, which rates as a "excellent match" match. Thin Ice is the closest PPG option at LRV 64. Very close match. 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. Thin Ice is a PPG color with cool light gray undertones and an LRV of 64. With a Delta E of 2.3, 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 2.3, 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 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.