Benjamin Moore Sea Life 2118-40
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| Official page: | Sea Life 2118-40 |
| Code: | 2118-40 |
| Name: | Sea Life |
| Brand: | Benjamin Moore |
What color is Benjamin Moore Sea Life?
Benjamin Moore Sea Life 2118-40 is a muted blue-gray with a cool, lightly smoky cast. Its medium depth gives walls noticeable color without making a room feel heavily darkened. In brighter daylight, the gray aspect may appear more prominent, while lower or cooler light can draw out its soft blue character. Sea Life suits bedrooms, bathrooms, or a study where a restrained, grounded wall color is wanted. Pair it with crisp white trim, pale oak, brushed nickel, charcoal textiles, or warm cream accents for contrast.
Benjamin Moore Sea Life reviews (2 photos)
View the photos of real spaces painted with this purple that were not included in specific categories. Close-ups, painted furniture, storages and dressers, hallways, stairs and ceilings.


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What are Benjamin Moore Sea Life undertones?
Sea Life is a midtone, very muted slate blue. The HEX sample has a subtle blue bias, but its low chroma turns that hue into a neutral-looking color rather than a clear blue. Warm bulbs may gray the color down, while cool daylight usually makes its blue or teal direction clearer.
HEX value:
RGB code:
123, 127, 137
Is Benjamin Moore Sea Life cool or warm?
With a hue of 223°, this Purple leans cool, but it is near the neutral line and may feel warmer in certain lighting.
2118-40 Sea Life HSL code: 223, 6%, 51%
Hue - degree on a color wheel from 0 to 360. 0 is red, 120 is green, and 240 is blue.
Saturation is expressed as a percentage. At 0%, it appears as a shade of grey, and at 100%, it is in full color.
Lightness is also a percentage value. 0% is black, and 100% is white.
How light temperature affects Sea Life
Natural Lighting. During the day, natural light shifts from about 2000 K at sunrise/sunset to 5500–6500 K at noon.
In addition, natural-light temperature depends on its direction:
| Direction of sunlight | Visible temp. | Hue | Duration |
|---|---|---|---|
| North | Cool | Bluish | All day |
| East | Warm | Yellow | Before noon |
| West | Warm | Orange-red | After noon |
| South | Warm | Orange-yellow | All day |
Artificial Lighting. When choosing bulbs, pay attention to their color temperature in Kelvins.
Use the slider to see how this Purple shade looks under different lighting:


4000K
Coordinating colors.
Colors that go with Benjamin Moore Sea Life:
Monochromatic color scheme
This scheme consists of various shades, tints, and tones of a single color. While it offers a perfect combination of hues, without accent décor it may become monotonous.
Lighter shades
2118-40
Sea Life
Darker shades
2118-40
Sea Life
Complementary color scheme
This color scheme is a combination of two shades that are opposite each other on the color wheel. The high contrast between these colors creates a vibrant and dynamic visual effect. For the color Sea Life with a blue hue, complementary colors are those with a orange hue close to 43, such as Benjamin Moore Woodcliff Lake and Silver Fox.
LRV of Sea Life
Sea Life has an LRV of 21.38% and refers to Medium colors that reflect a lot of light. Why LRV is important?
Light Reflectance Value measures the amount of visible and usable light that reflects from a painted surface.
Simply put, the higher the LRV of a paint color, the brighter the room you will get.
The scale goes from 0% (absolute black, absorbing all light) to 100% (pure white, reflecting all light).
Act like a pro: When choosing paint with an LRV of 21.38%, pay attention to your bulbs' brightness. Light brightness is measured in lumens. The lower the paint's LRV, the higher lumen level you need. Every square foot of room needs at least 40 lumens. That means for a 200 ft2 living room you'll need about 8000 lumens of light – e.g., eight 1000 lm bulbs.
Color codes
We have collected almost every possible color code you could ever need.
Not sure what the difference between HEX and RGB is? We break down color models in plain language. Understanding color models
| Format | Code |
|---|---|
| HEX | #7b7f89 |
| RGB Decimal | 123, 127, 137 |
| RGB Percent | 48.24%, 49.80%, 53.73% |
| HSV | Hue: 223° Saturation: 10.22% Value: 53.73% |
| HSL | hsl(223, 6, 51) |
| CMYK | Cyan: 10.22 Magenta: 7.3 Yellow: 0.0 Key: 46.27 |
| YIQ | Y: 126.944 I: -5.597 Q: 2.266 |
| XYZ | X: 20.272 Y: 21.196 Z: 26.683 |
| CIE Lab | L:53.163 a:0.62 b:-5.911 |
| CIE Luv | L:53.163 u:-2.744 v:-8.467 |
| Decimal | 8093577 |
| Hunter Lab | 46.039, -1.97, -2.136 |
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