Thunder (AF-685-2)
A warm medium greige. Balanced and sophisticated.
About Benjamin Moore Thunder
Thunder (AF-685-2) is a gray from Benjamin Moore's collection with an LRV of 48.22 and warm greige undertones. A warm medium greige. Balanced and sophisticated.
At an LRV of 48.22, Thunder 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)
Thunder has an LRV of 48.22, 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
Thunder has warm greige 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 warm medium greige. Balanced and sophisticated. Warm undertones like these pair naturally with other warm elements: honey-toned wood floors, brass and gold hardware, cream-colored textiles, and warm-toned furnishings. They can clash with strongly cool elements like icy blue accents or chrome fixtures, though the effect depends on the strength of the undertone.
Lighting Behavior
Warm and grounding. A reliable medium neutral.
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 Thunder with a physical sample on your actual wall, and observe it at different times of day before committing.
Best Rooms for Thunder
Benjamin Moore recommends Thunder for: living room, bedroom, office, hallway.
Closest Matches in Other Brands
Find the closest equivalent to Benjamin Moore Thunder from other paint brands. Matches are calculated using Delta E (CIE2000), the industry standard for measuring perceptual color difference.
Sherwin Williams Matches
Behr Matches
Coordinating Colors
These colors pair beautifully with Thunder 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 Thunder is Mindful Gray (SW 7016) with a Delta E of 4.1, which rates as a "good match" match. Mindful Gray is close. A Delta E under 2 means most people cannot tell the colors apart, while 2 to 4 means the difference is subtle.
Thunder has warm greige undertones. A warm medium greige. Balanced and sophisticated. 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.
Thunder (AF-685-2) has a Light Reflectance Value (LRV) of 48.22, 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 48.22, this is a medium-depth color that adds warmth and character while still reflecting a reasonable amount of light.
Thunder leans warm. The warm greige undertones give it a cozy, inviting quality. It pairs naturally with other warm elements like wood tones, brass hardware, and cream textiles. In north-facing rooms, the warmth is especially welcoming.
Color data sourced from manufacturer specifications. Match calculations use Delta E (CIE2000) computed from Lab color space conversion. Last reviewed: March 22, 2026.