Underseas SW 6214 lands in a genuinely interesting middle ground. It is a medium-depth blue-green with enough gray mixed in to keep it muted and sophisticated rather than saturated or punchy. At LRV 25.4, it carries real weight on the wall. It will not read as a light accent color, and it is not a deep dramatic shade either. It sits firmly in medium territory, which means light conditions have a big say in how it presents.
In a room with generous natural light, Underseas softens and the blue-green character becomes more visible and airy. Pull it into a dim north-facing room or a space with limited windows and it deepens noticeably, leaning moodier and more complex. The gray component is what keeps it from ever feeling aqua or tropical. It is calming rather than bright, grounded rather than playful. Reviewers consistently describe it as a color that adds depth and a quiet sense of drama without overwhelming a room.
The undertone conversation around Underseas is genuinely split, and that split is worth taking seriously before you commit. The dominant read is blue-green with gray woven through it, but which of those two, blue or green, wins out depends heavily on your specific room. In spaces with warm light, the green pulls forward and the color can read close to a sage or eucalyptus. In cooler, bluer light, the blue side asserts itself and you get something closer to a slate teal.
The gray is the stabilizing element that most reviewers agree on. It prevents either the blue or the green from going vivid, which is why the overall impression is refined and not beachy. Some people read it primarily as a sophisticated blue-green with gray, others see it leading with green and gray and registering almost as a muted sage. A small number of reviewers emphasize the blue so strongly they describe it as closer to a slate blue-green.
The practical takeaway is to test a large sample in your specific room through morning, midday, and evening light before committing. Warm incandescent lighting will pull the green and give the color a more earthy, organic feel. Cool daylight bulbs or northern light will accentuate the blue and the gray, reading more coastal and quieter. Neither reading is wrong, they are just genuinely different moods from the same color.
Underseas works best in rooms where you want a sense of calm and a nature-inspired grounding. Bedrooms are a natural home for it. The combination of medium depth, cool-leaning undertones, and that prominent gray keeps it restful without feeling sterile. It works particularly well in a primary bedroom where you want the walls to recede and create a cocoon-like atmosphere.
Living rooms are another strong application, especially if the space gets decent natural light for part of the day. The color adds visual interest and a relaxed coastal mood without demanding a themed room around it. It also shows up frequently on kitchen cabinets, where its depth and sophistication read as current and considered. Reading nooks, home offices aimed at focus and calm, and bathrooms all benefit from what Underseas does well: quiet drama with a lot of staying power.
Orientation and light source matter at LRV 25.4. South and west-facing rooms will handle it most easily, keeping it from going too dark. North-facing rooms are workable but will lean toward the moodier, deeper end of its range. Pair it with cream trim, such as Muslin or Ecru from the coordinating palette, to warm the whole composition and prevent the walls from feeling heavy. In rooms with limited light, keep furnishings and soft goods on the lighter side to balance the depth.
This is where Underseas earns the most consistent praise. The muted blue-green creates a restful backdrop that reads calm and cocooning, especially in rooms that get soft or warm evening light. Pair it with cream bedding and warm wood furniture to keep the space from going cool.
In a living room with good natural light, Underseas reads as a sophisticated nature-inspired backdrop rather than a statement color. It works well with neutral upholstery in warm taupes or off-whites and anchors the space without competing with furnishings. Keep trim light and warm for the best contrast.
Underseas has become a reliable cabinet choice for people who want depth and character without going black or navy. It pairs cleanly with cream or warm-white upper cabinets and looks strong with brass hardware. The gray in the undertone keeps it from reading overtly coastal in a kitchen setting.
The calming quality of Underseas makes it a productive choice in a space meant for focus or quiet. It creates a contained, immersive feel that a lighter color cannot quite achieve. In a smaller nook, the depth actually works in your favor, making the space feel intentional rather than undersized.
A bathroom with natural light is a strong setting for Underseas, particularly as a full accent wall or vanity color. The blue-green reads as fresh and nature-adjacent, and it pairs well with white tile and warm wood or stone accents. In windowless bathrooms, test carefully because it will deepen significantly under artificial light.
Underseas is direct about what it wants around it: warmth and softness to counterbalance the cool blue-green depth. The coordinating palette leans exactly that way. Window Pane gives you a lighter, softer variation in the same color family, useful for adjacent rooms or trim applications where you want a tonal connection without repeating the same depth. Muslin and Ecru are the heavy lifters here: both are warm creamy neutrals that sit beautifully against the cool-gray quality of Underseas, preventing the space from reading cold. Cream trim in either of those directions is a particularly reliable move.
Beyond the coordinating colors, sandy beiges, soft warm whites, and light warm grays all support Underseas well. Natural wood tones in medium to warm ranges bring out the green-sage quality in the color and push the overall look toward earthy and organic. Brass and aged bronze hardware or fixtures add warmth and pick up the color's more golden-green moments. Avoid anything with strong cool-blue or pure-white pairings if you want the color to feel settled rather than stark.
All comparisons are matched against Underseas at LRV 25.4.
Orange and terracotta sit directly opposite blue-green on the color wheel, so pairing them with Underseas creates a high-contrast tension that can feel jarring rather than intentional. The effect is particularly pronounced when the warm accent shows up in large doses like a sofa, rug, or prominent artwork.
A very bright, blue-toned white on trim will amplify the cooler side of Underseas and can make the overall space feel cold and clinical. At LRV 25.4, the walls already carry significant depth, and a stark white trim creates a high-contrast pairing that emphasizes the cool gray rather than the warmer green-sage quality.
Because Underseas has an LRV of 25.4, it already absorbs a meaningful amount of light. In a north-facing room or a basement space without natural light, the color can deepen to the point of feeling oppressive, and the blue-green character may shift toward a heavy dark gray-green that was not what you chose it for.
Underseas is a medium-depth blue-green with gray undertones that keep it muted and refined. It sits in the greens and sage color family and reads as a calming, nature-inspired color rather than a saturated or vivid one. Its hex is #7C8E87 and its RGB values are 124, 142, 135.
Underseas carries green, gray, and blue undertones. The gray is the most consistent element across different lighting conditions and is what keeps the color from going aqua or vivid. Whether the green or the blue reads more prominently depends on your room's light: warm light pulls out the green-sage quality, while cool or northern light emphasizes the blue. Many reviewers note this split and recommend testing a large sample before committing.
Underseas reads as a cool color overall. The blue-green base and the gray undertone both lean cool, though the green component can introduce a slightly earthy, organic warmth in rooms with warm light sources. It is not a warm color in the way a true sage or olive would be, but pairing it with warm cream trim and wood tones brings the temperature of the space into a comfortable balance.
The LRV of Underseas SW 6214 is 25.4, which places it firmly in the medium-depth range. It will absorb a notable amount of light, so it behaves darker in low-light or north-facing rooms and reads softer and more open in bright, south or west-facing spaces. Always test at LRV 25.4 in your actual room before committing.
Underseas pairs best with warm creamy neutrals like Muslin and Ecru for trim, which counterbalance its cool depth and keep the space from feeling cold. Natural wood tones in medium-warm ranges bring out the green-sage quality in the color. Warm metals like brass and aged bronze work well as hardware or fixture accents. Sandy beiges and soft warm grays in upholstery and soft goods complete the palette. Avoid bright cool whites and strong orange or terracotta accents, which clash with the blue-green base.
The Sherwin-Williams color code is SW 6214. The hex value is #7C8E87 and the RGB values are 124 red, 142 green, 135 blue.
Yes, Underseas is a well-regarded cabinet color. Its depth at LRV 25.4 gives cabinets a grounded, sophisticated look, and the muted blue-green reads as current without being trendy. It works particularly well on lower cabinets paired with cream or warm-white uppers and brass hardware. For a front door, it makes a quiet, nature-inspired statement that reads well against brick, stone, and neutral siding. As with any medium-depth color on an exterior, test it in direct sunlight and shade because the blue-green can shift noticeably depending on the time of day.
