Fair Isle Blue
What Fair Isle Blue Actually Looks Like
Fair Isle Blue is a deep, moody teal that sits between blue and green without fully committing to either. It reads as a saturated blue-green in daylight and pulls noticeably darker in dim or artificial light. In low north light it can read almost like a dark slate. It is not a light or airy color. It brings weight and presence to a space, which is the whole point.
Fair Isle Blue Undertones
The color carries both blue and green in roughly equal measure, giving it a classic teal quality. Depending on the light in your room and the colors around it, the green can become more visible next to warm neutrals, while the blue asserts itself against cooler whites and grays. There is no significant gray or purple pull based on the color values.
Where Fair Isle Blue Works Best
Because of its low light reflectance, Fair Isle Blue works best in rooms where you want depth rather than brightness. It suits spaces that already get good natural light, since it will absorb a fair amount. Small rooms can handle it well if your goal is an intimate, cocooning feel. It is listed for interior use.
Where to put Fair Isle Blue
On a full accent wall or all four walls, Fair Isle Blue creates a settled, enveloping atmosphere. It works best here when the room receives afternoon or southern light, which keeps it from feeling too heavy during the day.
The depth and coolness of this color make it genuinely restful in a bedroom. Pair it with warm linen bedding and wood furniture to keep the space from feeling cold.
A focused, low-distraction color that reads as serious without being oppressive. Task lighting matters here since the low LRV means the walls will not bounce much light back into the room.
In a bathroom with good vanity lighting, Fair Isle Blue feels intentional and spa-like. In a windowless powder room it will go quite dark, which can be a striking choice if that is what you are after.
What to Pair With Fair Isle Blue
No coordinating colors are specified in our database for this color. As a general pairing guide, Fair Isle Blue responds well to warm off-whites and creamy whites on trim, which temper its cool intensity. Natural wood tones in medium to warm browns ground it without competing. Brass and aged bronze hardware read well against it.
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Colors that clash with Fair Isle Blue
Placing Fair Isle Blue adjacent to a cool blue-gray can flatten both colors and make the overall palette feel monotone and cold.
A stark cool white on trim next to this deep teal can feel harsh and increase the apparent coldness of the wall color.
At LRV 15.58 this color absorbs a lot of light. In a room with a single small window and no lamps, it can make the space feel noticeably dim during the day.
Common questions
The Benjamin Moore code is CSP-715. The precise LRV is 15.58, which places it firmly in the dark end of the color spectrum. The hex and RGB values are available in the color spec block on this page.
Benjamin Moore lists this color for interior use only, so it is not recommended for exterior application.
It depends on your light and your surrounding colors. In warm incandescent or amber light the green component tends to come forward. In daylight from a northern or eastern exposure the blue reads more strongly. Either way it stays recognizably teal rather than tipping decisively into one or the other.
It will not make a small room feel larger, but it can make it feel intentional and finished. The key is adequate lighting. If the room has good natural light or you are willing to add layered artificial light, a small room in Fair Isle Blue can feel like a deliberate design choice rather than a mistake.