The closest widely recommended Benjamin Moore match for Sherwin-Williams Halcyon Green (SW 6213, LRV about 44) is Sea Haze 2137-50 (LRV about 46). It lands roughly 2 LRV points lighter and reads a touch grayer, so the two are close cousins rather than identical twins.
If you shop Behr, the nearest pick is Nature's Gift N390-4 (LRV about 44), which holds almost the same depth with a marginally warmer gray cast.
Every delta here is small, but small is not zero. No brand publishes an official cross-brand equivalent, so treat these as the best available approximations and confirm the winner on your own wall before you commit to a gallon.
Halcyon Green is one of those muted blue-greens that shifts the moment you move it between brands, because every paint company mixes its base and tints its own way. If you want the background on why a match is never a clone, start with our guide to how cross-brand paint matching works. Below is the short, honest version for this specific color, with one primary Benjamin Moore pick, one alternative, and one Behr option.
The closest matches, side by side
| Color | Brand and code | Approx LRV | Undertone vs Halcyon Green | Verdict |
|---|---|---|---|---|
| Halcyon Green (hex #A6AD9D) | Sherwin-Williams SW 6213 | 44 | Reference: muted blue-green sage | The color you are matching |
| Sea Haze (hex #AFB4A5) | Benjamin Moore 2137-50 | 46 | A hair grayer, holds the same soft blue-green | Primary pick: closest overall |
| October Mist (hex #B4B3A2) | Benjamin Moore 1495 | 47 | Greener and grayer, less of the blue | Alternative: if Halcyon reads too blue |
| Nature's Gift (hex #A7AE9E) | Behr N390-4 | 44 | Nearly identical depth, a touch warmer gray | Best Behr option for depth |
Try it on your house
No photo? Try a sample
LRV and hex values above are approximate and rounded from published brand data and digital samples. Screens and lighting distort color, so a physical paint chip held against your wall is the only authoritative reference. None of these are official brand equivalents.
Reading the table, the pattern is simple. Sea Haze wins on hue fidelity while staying almost as soft as the original, October Mist trades a little of the blue for a steadier gray-green, and Nature's Gift matches the depth most precisely of the three. None of them is more than three LRV points off Halcyon Green, which is close enough that the deciding factor is usually the undertone in your specific light, not the numbers on the fandeck. A color that measures two points lighter can still feel like a true match once it is dry and covering a full wall, because context does most of the work your eye reacts to.
Upload one photo, preview Halcyon Green and its Benjamin Moore match side by side. Free, no signup.
Why there is no exact Halcyon Green equivalent
Sherwin-Williams, Benjamin Moore, and Behr each formulate their own colorant systems, so no two brands can land on the same spectral curve for a muted blue-green like this one. Halcyon Green carries a specific balance of blue, green, and gray that shifts as soon as a different tint base and a different set of pigments try to reproduce it. That is why the honest answer to "what is the Benjamin Moore version of Halcyon Green" is a closest match with a stated delta, not a swap-in clone.
The gaps here are genuinely small: 2 to 3 LRV points and a slight undertone drift. In many rooms you would not notice the difference once the paint is dry. But muted greens are undertone chameleons, and a soft north-facing room or a warm bulb can push a 2-point difference into visible territory. The only way to know how a match behaves in your space is to see it in your light, which is exactly why the payoff of this whole exercise is a wall test, not a code lookup.
Two more variables widen or shrink these gaps once paint is on the wall. Sheen changes how much light bounces back, so an eggshell Sea Haze and a matte Halcyon Green can look further apart than their LRV numbers suggest, and a flat finish will always read a touch deeper than a satin of the same color. Bulb temperature matters just as much: a warm 2700K bulb flatters the greener October Mist, while cooler daylight lets the blue side of Halcyon Green step forward. Stack those two factors on top of the base 2 to 3 point difference and you can see why a code-to-code comparison on a screen is never enough to settle a match with confidence.
When the Benjamin Moore match works (and when to stay Sherwin-Williams)
- Reach for Sea Haze when you are already committed to the Benjamin Moore ecosystem (a trusted store, a preferred finish line, or a whole-house scheme built in BM fandeck codes) and you want the softest, closest read of Halcyon Green.
- Switch to October Mist if your test patches show Halcyon leaning too blue for the room, since it pulls the color back toward a calmer gray-green. Cross-check both against the source color's behavior in our profile of Halcyon Green undertones and best rooms.
- Stay with genuine Sherwin-Williams Halcyon Green when the color has to sit next to an existing SW element (trim, cabinets, an adjacent room) where even a 2-point shift would be obvious, or when a designer spec calls out SW 6213 by name.
- Whichever brand you pick, sample all three. Painting a small board of each and moving it around the room is the fastest way to see the undertone drift. If you are new to reading these differences, our walkthrough on how to compare paint colors the right way shows what to look for.
Related matches
If you are cross-shopping the wider family of soft greens, the same closest-match logic applies to neighboring shades, and the deltas often land in similar territory. See our breakdowns of the Benjamin Moore equivalent of Soft Sage and the Benjamin Moore equivalent of Cascade Green to compare how each one shifts across brands. Reading a few of these side by side is the quickest way to build intuition for how much a stated LRV or undertone gap actually shows up on a finished wall, so that when you sample Halcyon Green and its matches you already know what to watch for.
Frequently asked questions
What is the closest Benjamin Moore equivalent of Halcyon Green?
The closest widely recommended Benjamin Moore match is Sea Haze 2137-50 (LRV about 46), roughly 2 LRV points lighter than Halcyon Green (SW 6213, LRV about 44) and a touch grayer. October Mist 1495 is a solid alternative if the color reads too blue for your room. Neither is an official equivalent, so confirm with a physical chip on your wall.
Is there a Behr version of Halcyon Green?
The nearest Behr pick is Nature's Gift N390-4 (LRV about 44), which sits at almost the same depth as Halcyon Green with a marginally warmer gray cast. It is a close match rather than an exact copy, since Behr uses its own colorant system. Test it against a real Halcyon Green chip before you buy.
Is any cross-brand match to Halcyon Green exact?
No. No paint brand publishes official cross-brand equivalents, and different colorant systems cannot reproduce an identical spectral curve. Every option here is the closest available approximation with a small stated delta in LRV and undertone. The differences are minor but real, so treat them as starting points, not clones.
Should I just buy Sherwin-Williams Halcyon Green instead?
If the color has to match an existing Sherwin-Williams element or a designer specifies SW 6213 by name, buy the genuine color to avoid a visible shift. If you simply prefer another brand's store or finish, Sea Haze or Nature's Gift will get you very close. Either way, sample first and judge it in your own light.
1 HD render plus 3 free color variations.
Trademark notice. Sherwin-Williams and Halcyon Green, 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.
