Nantucket Fog (AC-22)
A light-medium cool gray with almost no undertone. One of the most truly neutral grays in the BM lineup.
About Benjamin Moore Nantucket Fog
Nantucket Fog (AC-22) is a gray from Benjamin Moore's collection with an LRV of 52.37 and cool neutral undertones. A light-medium cool gray with almost no undertone. One of the most truly neutral grays in the BM lineup.
At an LRV of 52.37, Nantucket Fog is a medium-depth color with real presence on the wall. It will add noticeable color and warmth to a room, creating a more cocooning, intimate atmosphere than lighter colors. It works beautifully in rooms with good natural light, and can be used on accent walls in rooms where a full application might feel too enclosed. Pair it with a bright white trim color (LRV 85+) for clean contrast.
Light Reflectance Value (LRV)
Nantucket Fog has an LRV of 52.37, placing it in the medium range on the 0-to-100 scale. LRV measures the percentage of visible light a color reflects. A pure black has an LRV of 0 and a pure white has an LRV of 100. Understanding a color's LRV helps you predict how it will feel in your space: higher LRV means brighter and more spacious, lower LRV means cozier and more intimate.
Undertone Analysis
Nantucket Fog has cool neutral undertones. Undertones are the subtle background colors that become visible in different lighting conditions. Even colors that look "neutral" in the store will reveal their undertones once they are on your walls and interacting with natural light, artificial light, and the colors around them.
A light-medium cool gray with almost no undertone. One of the most truly neutral grays in the BM lineup. Cool undertones like these pair naturally with other cool elements: gray-toned wood, chrome and silver hardware, white marble, and cool-toned textiles. They can feel disconnected from strongly warm elements like honey oak or brass, so consider your existing finishes before committing.
Lighting Behavior
Remarkably clean in all lighting. Does not pull warm, cool, pink, green, or purple. Just gray. A designer's dream for clean modern spaces.
Every paint color looks different depending on the light source in your room. South-facing rooms get warm, direct sunlight that brings out yellow and warm undertones. North-facing rooms get cool, indirect light that emphasizes blue and gray undertones. East-facing rooms are bright and warm in the morning, cooler in the afternoon. West-facing rooms are the opposite: cool morning, warm afternoon. Incandescent and warm LED bulbs push colors warmer, while cool-white LEDs and fluorescent tubes push colors cooler. To avoid surprises, always test Nantucket Fog with a physical sample on your actual wall, and observe it at different times of day before committing.
Best Rooms for Nantucket Fog
Benjamin Moore recommends Nantucket Fog for: living room, bedroom, office, hallway, bathroom.
Closest Matches in Other Brands
Find the closest equivalent to Benjamin Moore Nantucket Fog from other paint brands. Matches are calculated using Delta E (CIE2000), the industry standard for measuring perceptual color difference.
Sherwin Williams Matches
Passive is the closest match. Both are clean, neutral grays.
View all Sherwin Williams matches →Behr Matches
Dolphin Fin is warmer. Nantucket Fog is more neutral.
View all Behr matches →Coordinating Colors
These colors pair beautifully with Nantucket Fog for a cohesive palette. Use them for trim, accents, adjacent rooms, or furniture to create a well-designed space.
Frequently Asked Questions
The closest Sherwin Williams match for Benjamin Moore Nantucket Fog is Passive (SW 7064) with a Delta E of 3, which rates as a "good match" match. Passive is the closest match. Both are clean, neutral grays. A Delta E under 2 means most people cannot tell the colors apart, while 2 to 4 means the difference is subtle.
Nantucket Fog has cool neutral undertones. A light-medium cool gray with almost no undertone. One of the most truly neutral grays in the BM lineup. Undertones become most visible when the color is on a large surface like a wall, and they shift depending on the light source in your room. Always test with a physical sample in your specific space to see how the undertones interact with your lighting, flooring, and furnishings.
Nantucket Fog (AC-22) has a Light Reflectance Value (LRV) of 52.37, which puts it in the medium range. LRV measures the percentage of light a color reflects on a scale from 0 (pure black) to 100 (pure white). At 52.37, this is a medium-depth color that adds warmth and character while still reflecting a reasonable amount of light.
Nantucket Fog leans cool. The cool neutral undertones give it a crisp, fresh quality. It pairs well with chrome, silver, cool-toned wood, and white marble. In south-facing rooms with warm light, the cool undertones help keep the color from feeling too warm.
Color data sourced from manufacturer specifications. Match calculations use Delta E (CIE2000) computed from Lab color space conversion. Last reviewed: March 22, 2026.