The closest match, up front. The Benjamin Moore color most designers reach for when they want Big Chill SW 7648 (LRV 53) is Quiet Moments 1563 (approx LRV 53), a soft blue-green gray that lands within a point of Big Chill.
On the Behr side, the widely recommended stand-in is Dolphin Fin 790E-2 (approx LRV 54), another light cool gray that reads a touch warmer and a little less blue.
Every one of these deltas is small (a point or two of LRV and a subtle undertone shift), which is exactly why a chart cannot settle it. The only way to be sure is to test the match on your own wall.
Sherwin-Williams Big Chill (SW 7648) is one of the most requested cool grays for calm, spa-like rooms, so the question we hear right behind "should I use it?" is a version of "what is it in Benjamin Moore?" The honest answer starts with a caveat: no paint brand publishes official cross-brand equivalents, and none ever will. Matching a color across decks is not a lookup, it is a judgment call about which chip lands closest on two axes at once: light reflectance value (LRV) and undertone. Big Chill sits at LRV 53 with a soft, cool blue-green cast, so a good match has to hold both of those together, not just one. For the full method behind any of these calls, start with our guide to how cross-brand paint matching works.
The closest matches, side by side
| Color | Brand and code | Approx LRV | Undertone vs Big Chill | Verdict |
|---|---|---|---|---|
| Big Chill (reference) | Sherwin-Williams SW 7648 | 53 | The benchmark: cool gray with a soft blue-green undertone (approx hex #C7CCC7, RGB 199, 204, 199) | The color you are matching |
| Quiet Moments | Benjamin Moore 1563 | 53 | Very close: nearly the same lightness, with a hair more blue-green that can show in bright light (approx hex #C7CCC6, RGB 199, 204, 198) | Closest widely recommended BM match |
| Stonington Gray | Benjamin Moore HC-170 | 59 | Lighter and more neutral, less green with a gentle blue lean (approx hex #CBCDC7, RGB 203, 205, 199) | Best BM alternative if you want it lighter and cleaner |
| Dolphin Fin | Behr 790E-2 | 54 | A touch warmer and a little less blue on a full wall (approx hex #C8C9C3, RGB 200, 201, 195) | Closest widely recommended Behr match |
Try it on your house
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LRVs above are approximations of each brand's published figures, and the hex and RGB values are digital renderings that shift with your screen. None of them is authoritative. A physical paint chip, viewed in your own room, is the only reference that decides a match.
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Why there is no exact Big Chill equivalent
Two brands can print two chips that measure the same LRV and still look different on a wall, because LRV only captures how much light a color bounces back. It says nothing about the colorants underneath. Sherwin-Williams and Benjamin Moore mix from different base and tint systems, with different pigments doing the cooling, so even a careful match will drift on the undertone axis. Big Chill leans a soft blue-green; Quiet Moments carries a touch more of that same blue-green and can look a shade more colored in bright light; Stonington Gray pulls toward a cleaner, more neutral blue. Those are not defects, they are just what happens when you cross decks. The gap is usually a point or two of LRV and one small undertone step, which is invisible on a sample card and obvious on a sunlit wall.
Sheen makes it worse or better. A matte finish mutes undertone and hides small differences; a satin or eggshell in a bright room amplifies them. Add your flooring, your trim color, and the direction your windows face, and the "same" cool gray can read blue in one room and flat gray in the next. North light in particular pushes Big Chill's blue-green forward, while warm afternoon light can flatten it toward a plain greige. This is why we never call any of these an exact or official equivalent. The right phrase is the closest widely recommended match, and the closest match still has to be tested against the exact light where it will live.
When the Benjamin Moore match works (and when to stay Sherwin-Williams)
- Go with Quiet Moments when your contractor already stocks Benjamin Moore, or your trim and ceiling are BM, and you would rather keep one paint system than chase a cross-brand tint.
- Stay Sherwin-Williams when other rooms in the house are already Big Chill. Batch and brand consistency across a whole home beats a one-point LRV preference every time.
- Lean to Stonington Gray if your samples of Big Chill felt a shade too soft or green and you want a lighter, cleaner cool gray with a gentle blue lean instead. For how Big Chill behaves by room and exposure, see Big Chill undertones and best rooms.
- Compare the chips the right way before you buy gallons. Our walkthrough on how to line up two paint colors before you commit will save you a repaint if Quiet Moments turns bluer than you expected.
Related matches
Matching one cool gray usually means matching its neighbors too. If you are cross-shopping light grays from the Behr side, here is the Benjamin Moore match for Behr Dolphin Fin, and here is the Benjamin Moore match for Behr Dove. Each uses the same LRV-plus-undertone method, and each ends the same way: confirm the finalist on your own wall before you commit a gallon.
Frequently asked questions
What is the closest Benjamin Moore equivalent of Big Chill?
The closest widely recommended Benjamin Moore match is Quiet Moments 1563, at an approximate LRV of 53 against Big Chill's LRV of 53. It is a soft blue-green gray that lands within a point of Big Chill, though it can read a shade more blue-green in bright light. Stonington Gray HC-170 (approx LRV 59) is a close alternative that runs lighter and more neutral. Neither is an official or exact equivalent, so treat both as strong starting points to test, not guaranteed twins.
Is there a Behr version of Big Chill?
There is no official Behr version, but the match homeowners most often reach for is Behr Dolphin Fin 790E-2, at an approximate LRV of 54. It sits very close to Big Chill on lightness while reading a touch warmer and a little less blue on a full wall. Because Behr mixes from its own tint system, expect a small undertone shift rather than an identical color, and confirm it with a sample in your own light.
What is the LRV of Sherwin-Williams Big Chill?
The published LRV of Big Chill SW 7648 is about 53, which makes it a mid-light gray that bounces a moderate amount of light back into the room. That reflectance keeps it from feeling heavy, but it is low enough that Big Chill's cool blue-green undertone can show clearly, especially in north-facing rooms or under overcast daylight.
Will the Benjamin Moore match look identical to Big Chill?
Not exactly. Two cool grays at nearly the same LRV can still diverge on undertone because each brand uses different pigments, and your lighting, sheen, flooring, and trim all push the result one way or the other. The delta between Big Chill and its Benjamin Moore match is small, but small is not zero. The reliable move is to preview both on a photo of your actual room, or sample them side by side, before you buy.
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Trademark notice. Sherwin-Williams and Big Chill, Benjamin Moore, and Behr are trademarks of their respective owners. FacadeColorizer is not affiliated with, endorsed by, or sponsored by these companies. Brand and color names are used descriptively (nominative fair use). Hex and RGB values are approximate digital renderings; the only authoritative reference is a physical paint chip.
Trademarks mentioned (Sherwin-Williams, Benjamin Moore, Behr, Caparol, Brillux, Sto, Alpina, Valspar, PPG, Glidden, Dulux, Crown Trade, Sandtex, Farrow & Ball, Johnstone's, Leyland) are property of their respective owners. FacadeColorizer is independent and not affiliated with any of them. Nominative fair use under Lanham Act §1125.
