Behr Mermaid Sea P440-7
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| Code: | P440-7 |
| Name: | Mermaid Sea |
| Brand: | Behr |
What color is Behr Mermaid Sea?
Behr Mermaid Sea P440-7 is a deep blue-green with a clear teal cast and enough saturation to hold its own on a large wall. It reads cooler in bright daylight, where its green-blue character is most apparent, while lower or warmer light can make it feel darker and more grounded. Use it in a powder room, dining room, or home office for a defined color statement, or reserve it for kitchen cabinetry and built-ins against pale walls. Mermaid Sea pairs well with warm white, light oak, natural rattan, aged brass, and soft clay-toned accents. For exterior use, it can give a front door or shutter detail a crisp, substantial presence.
Behr Mermaid Sea reviews (23 photos)
View the photos of real spaces painted with this blue that were not included in specific categories. Close-ups, painted furniture, storages and dressers, hallways, stairs and ceilings.























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What are Behr Mermaid Sea undertones?
Mermaid Sea is a midtone, soft deep teal. The HEX sample leans teal; this describes its measurable digital hue direction, not a hidden paint pigment. Warm bulbs may gray the color down, while cool daylight usually makes its blue or teal direction clearer.
HEX value:
RGB code:
41, 127, 109
Is Behr Mermaid Sea cool or warm?
At 167° on the HSL hue wheel, this dark blue falls clearly in the cool range.
P440-7 Mermaid Sea HSL code: 167, 51%, 33%
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 Mermaid Sea
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 dark blue shade looks under different lighting:


4000K
Coordinating colors.
Colors that go with Behr Mermaid Sea:
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
P440-7
Mermaid Sea
Darker shades
P440-7
Mermaid Sea
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 Mermaid Sea with a green hue, complementary colors are those with a red hue close to 347, such as Behr Mystic Fairy and Exotic Eggplant.
LRV of Mermaid Sea
Mermaid Sea has an LRV of 12.7% and refers to Medium Dark which means that this color reflects very little 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 12.7%, 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 | #297f6d |
| RGB Decimal | 41, 127, 109 |
| RGB Percent | 16.08%, 49.80%, 42.75% |
| HSV | Hue: 167° Saturation: 67.72% Value: 49.8% |
| HSL | hsl(167, 51, 33) |
| CMYK | Cyan: 67.72 Magenta: 0.0 Yellow: 14.17 Key: 50.2 |
| YIQ | Y: 99.234 I: -45.463 Q: -23.794 |
| XYZ | X: 11.263 Y: 16.753 Z: 17.104 |
| CIE Lab | L:47.947 a:-30.049 b:2.341 |
| CIE Luv | L:47.947 u:-33.851 v:7.508 |
| Decimal | 2719597 |
| Hunter Lab | 40.931, -22.512, 3.875 |
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