The closest widely recommended Benjamin Moore match for Sherwin-Williams Windy Blue (SW 6240, LRV 55) is Woodlawn Blue (HC-147), around LRV 53: a touch deeper and leaning a hair greener, but the same soft, airy blue-gray with a spa-like green cast. If you want Windy Blue read a shade grayer and cleaner, Silver Marlin (2139-50), near LRV 57, is the alternative most designers reach for.
On the Behr deck, the closest easy match is Behr Wondrous Blue (550E-3), around LRV 57, a touch lighter than Windy Blue and leaning slightly more toward true blue.
The delta between all of these is small, so the numbers only get you to the right shelf. The only way to be sure is to confirm the winner on your own wall, in your own light, before you buy a gallon.
Sherwin-Williams Windy Blue is a much-loved soft blue-gray, the kind of calm, coastal blue with a whisper of green that reads restful in a bedroom, fresh in a bathroom, and airy on a shaded porch ceiling. So it is no surprise that people painting with Benjamin Moore or Behr want the same look without switching brands. The honest answer up front: no paint company publishes official cross-brand equivalents, and none of these three will ever certify a competitor's color as a match. What we can do is line up the two numbers that actually matter, LRV (how light or dark a color reads) and undertone (the green-blue cast under the gray), and find the closest fit. If you want the full method, here is how cross-brand paint matching works. For Windy Blue specifically, matching means landing within a few points of LRV 55 while holding that soft, slightly green blue-gray character.
The closest matches, side by side
| Color | Brand + code | Approx LRV | Undertone vs Windy Blue | Verdict |
|---|---|---|---|---|
| Windy Blue (approx #B5C7CC) | Sherwin-Williams SW 6240 | 55 | Reference: soft blue-gray with a subtle green cast | The color you are matching |
| Woodlawn Blue (approx #B4C6BF) | Benjamin Moore HC-147 | ~53 | A touch deeper, leans slightly greener | Closest widely recommended BM match |
| Silver Marlin (approx #BEC9C5) | Benjamin Moore 2139-50 | ~57 | A touch lighter, grayer and cleaner | Cleaner, grayer BM alternative |
| Wondrous Blue (approx #C1CFD6) | Behr 550E-3 | ~57 | A touch lighter, leans slightly more blue | Closest easy Behr match |
Try it on your house
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LRV figures are approximations of each brand's published data and can shift with batch and sheen. The hex values above are digital renderings meant to show relative tone on a screen, not exact color: a physical paint chip under your own lighting is the only authoritative reference.
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Why there is no exact Windy Blue equivalent
Every brand builds its colors on its own tint bases and its own colorants, then measures them on its own equipment. Two soft blue-grays can share almost the same LRV on paper and still read differently on a wall, because the pigments underneath are not identical. Windy Blue leans on a light blue grayed down with a clear green undertone, which is why it can look almost spa-green in some rooms and cleanly blue in others. Benjamin Moore and Behr each reach a similar place with a slightly different recipe, so the undertone drifts: Woodlawn Blue lands a hair greener, Silver Marlin a touch grayer and cleaner, and Wondrous Blue slightly more toward true blue. None of that is a flaw. It is simply why a cross-brand match is always a close approximation, never a certified twin.
Light makes that gap wider or narrower. A fan deck chip is drawn down under controlled store light, but your room has its own mix of daylight, warm bulbs, and color bouncing off floors and trim. Because Windy Blue carries that green base, it swings more than a plain blue would: fresher and clearly blue in bright south light, softer and almost sea-glass green in a north room or after dark. A match that looks perfect on a chip at the paint counter can separate on the wall once your own lighting takes over, which is exactly why we treat the numbers above as a starting shelf, not a final answer.
When the Benjamin Moore match works (and when to stay Sherwin-Williams)
The right call usually comes down to the rest of your palette and how close you need the depth and undertone to land.
- Choose the Benjamin Moore match when your trim, ceiling, and coordinating colors are already Benjamin Moore, so the whole project stays inside one fan deck and one store.
- Stay with Sherwin-Williams Windy Blue when you have already sampled it and love the exact airy read, especially in a bathroom or bedroom where that soft green-blue does the work. See Windy Blue undertones and best rooms for where that color shines.
- Reach for Woodlawn Blue when you want to hold Windy Blue's depth almost exactly, and reach for Silver Marlin when you want the same family a touch grayer and cleaner for a bright, south-facing room that already pushes colors greener.
- Whichever way you lean, put the candidates side by side the right way. Our guide to comparing paint colors walks through matching LRV and undertone instead of trusting the chip name.
Related matches
Hunting equivalents for other Sherwin-Williams blues? See the Benjamin Moore match for Copen Blue, the dustier heritage blue, and the Benjamin Moore match for Cyberspace, the near-black navy if you are pairing Windy Blue with a deep accent. Same method, same honesty: closest LRV and undertone, then a test on your own wall.
Frequently asked questions
What is the closest Benjamin Moore equivalent of Windy Blue?
The closest widely recommended match is Benjamin Moore Woodlawn Blue (HC-147), around LRV 53. It reads a touch deeper than Windy Blue (SW 6240, LRV 55) and leans a hair greener, but keeps the same soft blue-gray with a green cast, so the two behave almost identically in a room. If you want it grayer and cleaner, Silver Marlin (2139-50) near LRV 57 is the alternative designers name most. There is no official equivalent, so test either one on your own wall before you commit.
Is there a Behr version of Windy Blue?
Behr Wondrous Blue (550E-3) is the closest easy Behr match, sitting near LRV 57 with a slightly lighter read than Windy Blue and leaning a touch more toward true blue. It is not an official equivalent, and Behr uses its own base and colorant system, so the green undertone can shift under your lighting. Paint a sample board and check it against Windy Blue in the actual room before ordering a full gallon.
Does Benjamin Moore Woodlawn Blue match Sherwin-Williams Windy Blue?
They are close cousins, not twins. Woodlawn Blue (LRV around 53) sits a touch deeper than Windy Blue (LRV 55), with a nearly identical soft blue-gray character and a slightly stronger green lean. In most light the two are hard to tell apart, but in a bright south-facing room Woodlawn Blue can read more sea-glass green. For a cleaner, grayer take on the same color, many designers reach for Silver Marlin instead, then confirm the winner on the wall.
Can I get an exact Windy Blue match at Benjamin Moore or Behr?
Not officially. No paint brand publishes exact cross-brand equivalents, and each brand uses its own bases and tints, so LRV and undertone always shift a little. Some paint counters can scan a Windy Blue chip and mix a custom color-match into their own base, which gets you very close, though sheen and coverage can still differ. The only way to be sure is to test the match on your own wall in your own light.
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