Half Sea Fog
Behr's dead-even sea-glass blue-green, reviewed honestly: the light that keeps it balanced, the light that tips it, and why a color from Behr's own trend palette still has almost no owner track record.
Jessica has spec'd whites and neutrals for more than 300 rooms and keeps a sample wall of painted drawdowns in her studio. Every color review is checked against real reader rooms in the comments and re-tested when a formula changes. About the testing process →
The Fast Verdict
Half Sea Fog is Behr's quietest blue-green: a soft sea-glass tone sitting almost exactly halfway between blue and green, at a light-but-not-pale LRV of 46. The name promises blue-gray moodiness; the actual formula is closer to dead-even, with green edging out blue by a hair, so it reads as often like a soft seafoam as it does a hazy blue-gray. Behr placed it in its 2023 Color Trends Palette alongside more attention-grabbing shades, but it never became the color anyone actually talks about — no Color of the Year spotlight, no viral bathroom, almost no forum chatter. That is not a flaw — it is just an honest, well-balanced color that got a trend-collection credential and nothing more.
Bright bathrooms and bedrooms with real daylight · home offices that want calm without cold · anyone who likes Palladian Blue but wants Behr's own version · a single accent wall next to plain white
You need a color that reads clearly, committedly blue · your room runs cool white LEDs with no daylight to balance them · you're hoping to match a specific photo online — there isn't much of one · you want a color with an established resale story
- A genuinely balanced blue-green — never forces you to pick a side
- LRV 46 holds its color without going dark or heavy
- No trend baggage — it was never famous enough to date itself
- Reads calm in bathrooms, bedrooms and offices without going cold
- Plays cleanly with plain white trim and unlacquered metal hardware
- Not a committed blue — buyers expecting a true coastal blue get seafoam instead
- Flattens to a dull, minty gray under cool LEDs with no daylight
- Gets washed out next to bolder, more saturated teals
- Almost no real-world reviews exist online — you're sampling mostly on faith
What Color Is Half Sea Fog, Really?
Half Sea Fog sits in Behr's N470 number block, a sea-glass blue-green built from close to equal parts of both — pull the RGB apart and green edges out blue by two points, with red trailing well behind either. That balance is the whole personality: it never fully commits to blue or to green, so it drifts toward whichever one your light and your bulbs are pushing that day. Behr's own marketing leans on moody, coastal language for it, but in practice it is calmer and more even-handed than that framing suggests — closer to actual beach sea glass than a dramatic ocean blue.
At LRV 46 it sits in the middle of its own family: darker and more saturated than Benjamin Moore's Ocean Air (LRV 73, pale enough to pass for an off-white) and Sherwin-Williams' Sea Salt (LRV 63), lighter and quieter than Benjamin Moore's Palladian Blue (LRV 53) and Sherwin-Williams' Rainwashed (LRV 47). That middle position is why it reads as a genuine wall color rather than a whisper-pale spa tint or a committed accent shade — it holds its own in a room without dominating it.
Undertone in one line: a dead-even blue-green with green holding a slight edge — never truly navy, never truly sage. If your sample reads bluer than expected, that's cool daylight or a cool-white bulb; if it reads greener, that's warm afternoon sun or a 2700K lamp. Both versions are the same paint being honest about the room, exactly like every other color in this family.
Where It Shines
Give it a room with real, even daylight — a bright bathroom, a well-lit bedroom, a home office that gets morning sun — and Half Sea Fog does exactly what its sea-glass character promises: calm, balanced, neither cold nor sweet. It is at its best against plain white trim and brushed or unlacquered metal, where the wall stays the quiet feature instead of fighting for attention. It rode into Behr's 2023 Color Trends Palette but was never the headline shade, so it ages better than the colors that did get the spotlight — nobody is going to date a room by association with a viral moment that never happened.
Where It Fails
The complaint pattern for a color this quiet is smaller than for a famous one — there simply isn't a large public record of people living with it — but three situations are predictable from the formula alone, and all three would disappoint a buyer before the second coat dries.
Without daylight to warm it, cool-white bulbs (4000K and up) flatten the color toward a dull, minty gray. The sea-glass balance disappears and what's left looks unfinished, not calm. Swap to warm 2700K bulbs before deciding the paint is wrong.
This color is genuinely tied between blue and green, not a blue with a green whisper. Buyers expecting a straightforward coastal blue like Behr's own Adirondack Blue end up with something that reads seafoam-green half the time. If you need blue to stay blue regardless of the light, this isn't the formula for it.
At LRV 46 this is a soft mid-tone, not a statement color. Put it beside a deeper, more saturated teal like Behr Aegean Blue and Half Sea Fog reads washed-out and indecisive by comparison. Use it as the main color, not the accent, or the contrast won't do it any favors.
Room by Room
Bright, evenly lit bathrooms are where the sea-glass balance shows off, and the color's genuine obscurity means it won't feel dated the way a trend teal might in five years. Satin or semi-gloss for moisture resistance; white or marble-look counters keep it feeling clean rather than aquatic.
Calm without being cold, as long as the lamps are 2700K. A north-facing bedroom running cool bulbs is the one combination worth testing first — that's the flattest version of this color.
Cool enough to feel focused, warm enough not to feel sterile. Morning light keeps it leaning blue; afternoon sun pulls it noticeably greener over the course of a workday.
Works well on a single wall or a built-in against white trim. A whole open-plan space in this color asks a lot of the light in every corner of the room — sample big before committing to more than one wall.
On an island under white uppers it reads fresh and a little coastal without going theme-y. A full run of cabinets in this color is a bigger bet; sample the exact cabinet doors under the exact under-cabinet lighting first.
Full sun reads it brighter and more clearly green than it looks indoors. It works well as a front-door or shutter accent against a white or light-gray house; committing an entire facade to a color this light-dependent is a bigger bet than the same choice indoors.
Your Light Is the Risk
Diffused daylight — a bathroom window, an east-facing office in the morning — is where the blue-green balance holds steadiest. Neither side wins; the sea-glass read comes through clean.
Without daylight to warm it, cool-white bulbs flatten the color to a dull, minty gray. It stops looking like sea glass and starts looking like an unfinished coat.
Morning light keeps it leaning blue; afternoon and golden-hour sun pull it noticeably greener. The swing is gentle, not dramatic, but it is real and worth watching for a full day before painting.
2700K bulbs warm it toward a soft seafoam-green at night; cool LED bulbs push it back toward a flatter blue-gray. Pick the bulb for the mood you actually want in the room.
Most complaints about Half Sea Fog are a light mismatch. Upload a photo of your actual room and see it on your walls — then ask for the same wall in north light or evening lamps before you buy a single sample.
Need It From Another Brand?
Any paint counter can custom-tint Behr N470-3 directly. If you would rather stay in one brand's own deck, these are the closest stock matches, measured as ΔE2000. Under 2 is a difference you will not see on the wall.
| Brand | Closest color | ΔE | LRV | |
|---|---|---|---|---|
| Sherwin-Williams | Languid BlueSW 6226 · Sherwin-Williams | 1.8 | 46 | Color page → |
| Benjamin Moore | Celtic BlueES-31 · Benjamin Moore | 2.8 | 45 | Color page → |
| Valspar | Lagoon Reflection8004-37D · Valspar | 0.0 | 46 | Color page → |
| PPG / Glidden | Smoke ScreenPPG1038-4 · PPG / Glidden | 2.5 | 46 | Color page → |
| Glidden | Summer Shower Green70GG 45/052 · Glidden | 1.6 | 45 | Color page → |
| Dutch Boy | Elegant Gray429-3DB · Dutch Boy | 2.2 | 46 | Color page → |
Similar Behr Colors
The nearest shades to Half Sea Fog within Behr's own range, ranked by perceptual color distance — useful when you want the same look a touch lighter, darker, or warmer.
WCAG 2.1: AA is 4.5 : 1 for normal text, 3 : 1 for large text, AAA is 7 : 1.
Half Sea Fog vs the Colors You're Also Considering
Every Half Sea Fog sample board has the same rivals on it. The numbers show the real lightness gap — then it comes down to which risk you would rather live with.
Pick this if you're already buying Behr and want the same balance without a special order.
Benjamin Moore HC-144 · LRV 53Palladian BluePick this if you want the same sea-glass balance from Benjamin Moore's deck — it's the more famous, more searched-for twin of this idea.
Pick this for more blue in the mix and a lighter, less saturated wall.
Sherwin-Williams SW 6211 · LRV 47RainwashedPick this for a deeper, greener version of the same watery blend — Rainwashed sits noticeably more toward green.
Inside the Behr deck the neighbors are extremely close. Prelude 740E-3 is #A8CDCC at LRV 56, one step off the hex and the same reflectance, so on a wall the two are hard to tell apart. Shadow Blue N480-3 at #A4CACE and LRV 55 leans measurably bluer. Meteor Shower N450-3 at #B0C8C6 and LRV 55 leans grayer and greener. Ocean Boulevard PPU13-10 at LRV 53 and Shaved Ice N490-3 at LRV 53 are both slightly deeper.
Across brands, Benjamin Moore Thunderbird 675 at #A6CBC9 and LRV 55 has a deltaE of 0.25, which is a true match. Rust-Oleum Serenity Blue 285139 at LRV 57 sits at deltaE 1.19, visually identical in normal room light. Glidden Evening Aqua Sky 90GG 56/122 at deltaE 2.05 and Dunn-Edwards Seaport DE5744 at deltaE 2.46 are very close, so sample first. Farrow and Ball Blue Ground No. 210 at LRV 52 and deltaE 3.57 is close but visibly different side by side.
Half Sea Fog Coordinating Colors
The rule for coordinating with Half Sea Fog is simple: keep trim plain and let one other color carry the contrast. It takes plain whites cleanly, pairs with a deeper teal for an accent without a fight, and sits comfortably next to a warm neutral when it needs to hand off to the rest of an open floor plan. These are the partners that make the most sense:
A Trend-Palette Color Nobody Followed Up On
Half Sea Fog did get one real credential: Behr placed it in its 2023 Color Trends Palette, the annual collection the brand releases alongside its actual Color of the Year (2023's was Blank Canvas, a warm off-white). Being in that palette put Half Sea Fog in front of every designer and paint-counter customer who looked at Behr's trend materials that year — and almost nobody picked it up and ran. A search for real owner reviews turns up almost nothing: no Reddit threads arguing about its undertone, no Houzz debates about which room it ruined, just a handful of Pinterest and TikTok posts.
That quiet reception is not a warning sign. Plenty of genuinely good colors get a trend-collection nod and then sit unbought for years, simply because a flashier shade in the same lineup got the marketing push instead. Judged on the formula alone — a balanced, mid-depth blue-green with a sensible LRV for a wall color — Half Sea Fog earns its place. Just go into it knowing you're one of the first people describing how it actually behaves in a real room, not confirming what a thousand other buyers already found.
Half Sea Fog With Wood Tones and Floors
Pale, cool woods are the easiest match: white oak, ash, and driftwood-finished floors all sit comfortably next to this blue-green without a fight, keeping the whole room feeling coastal rather than themed. Walnut and other deep, red-brown woods work too, as long as there's enough of them in the room to read as a deliberate contrast rather than an accident.
Honey oak and other orange-leaning golden woods are the one combination worth testing first. Warm afternoon light already pulls Half Sea Fog toward green; a golden floor doing the same thing from underneath can tip the whole room warmer and muddier than either the wood or the paint look alone. A large sample board propped against the actual floor, in the actual light, settles it in five minutes.
Three Ready Palettes Built on Half Sea Fog
A color is never alone on the wall. These are complete combinations in the 60-30-10 pattern, with the reason each one holds together. Every one opens in the visualizer.
Ultra Pure White keeps the room bright enough for the wall's balance to show, and Aegean Blue supplies the deep, saturated note the soft main color deliberately doesn't — one clear accent instead of a fight for attention.
Try this palette in your roomBlack Evergreen shares the same blue-green family at near-black depth, so the dark accent reads deliberate rather than random; plain white trim stays out of the way and keeps the room bright for the warm 2700K lamps this color wants.
Try this palette in your roomRoman Plaster warms the main living space while Half Sea Fog cools a single adjacent room; the two sit close enough in LRV that the handoff between them feels like a mood change, not a jarring color switch.
Try this palette in your roomHalf Sea Fog FAQ
Is half sea fog blue or green?
Genuinely both — the formula is nearly dead-even, with green holding a slight edge. Cool light and cool bulbs push it blue; warm afternoon sun and 2700K lamps push it green. If you need a color to commit to one side, this isn't it.
How light is half sea fog?
LRV 46 — a true mid-tone, not pale and not dark. It's noticeably deeper than Benjamin Moore's Ocean Air (LRV 73) and Sherwin-Williams' Sea Salt (LRV 63), and a touch lighter than Palladian Blue (LRV 53).
What trim goes with half sea fog?
Plain white — Behr Ultra Pure White or Behr White both work cleanly. A warm off-white will pull the wall greener; a stark cool white will push it bluer. Either can be the effect you want, so sample the trim and wall together before deciding.
Is it good for a bathroom?
Yes — one of its best rooms. A bright, evenly lit bath shows off the sea-glass balance, and satin or semi-gloss handles moisture. Test it under your actual vanity lighting, which is usually the coolest light in the house.
Does it work on an exterior?
In small doses — a front door, shutters, a garage — yes, especially against a white or light-gray house. Full sun reads it brighter and more clearly green than it looks indoors. A full facade in this color is a bigger commitment than most buyers expect; sample it outside, at the actual house, before ordering gallons.
How does it compare to sherwin-williams sea salt or benjamin moore palladian blue?
All three belong to the same soft blue-green family but aren't interchangeable. Sea Salt is paler and grayer (LRV 63), Palladian Blue is a shade darker and greener (LRV 53), and Half Sea Fog sits in between at LRV 46 with the most even blue-green split of the three. If your painter only stocks Behr, this is the one to ask for.
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