Behr Cosmic Cobalt P500-7
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| Code: | P500-7 |
| Name: | Cosmic Cobalt |
| Brand: | Behr |
What color is Behr Cosmic Cobalt?
Behr Cosmic Cobalt P500-7 is a deep, saturated blue with a clear cool cast and a subtle blue-green edge visible in its #156a9b color value. It has enough depth to hold its own on an accent wall, built-in shelving, or a painted front door without reading nearly black. In bright daylight, Cosmic Cobalt appears cleaner and more vivid, while lower light brings out its darker, inkier side. Pair it with crisp white trim, pale gray stone, light oak, or brushed nickel for a fresh contrast. It can also anchor a bathroom vanity or kitchen island when the surrounding finishes are kept light and simple.
Behr Cosmic Cobalt reviews (2 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 Cosmic Cobalt undertones?
Cosmic Cobalt is a midtone, soft slate blue. The HEX sample leans blue; 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:
21, 106, 155
Is Behr Cosmic Cobalt cool or warm?
At 202° on the HSL hue wheel, this dark blue falls clearly in the cool range.
P500-7 Cosmic Cobalt HSL code: 202, 76%, 35%
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 Cosmic Cobalt
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:
Coordinating colors.
Colors that go with Behr Cosmic Cobalt:
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
P500-7
Cosmic Cobalt
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 Cosmic Cobalt with a green hue, complementary colors are those with a red hue close to 22, such as Behr Hacienda Tile and Red Pepper.
LRV of Cosmic Cobalt
Cosmic Cobalt has an LRV of 9.57% and refers to Dark colors which means that this color almost does not reflect 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 9.57%, 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 | #156a9b |
| RGB Decimal | 21, 106, 155 |
| RGB Percent | 8.24%, 41.57%, 60.78% |
| HSV | Hue: 202° Saturation: 86.45% Value: 60.78% |
| HSL | hsl(202, 76, 35) |
| CMYK | Cyan: 86.45 Magenta: 31.61 Yellow: 0.0 Key: 39.22 |
| YIQ | Y: 86.171 I: -66.397 Q: -2.732 |
| XYZ | X: 11.377 Y: 12.833 Z: 32.879 |
| CIE Lab | L:42.51 a:-5.783 b:-33.299 |
| CIE Luv | L:42.51 u:-26.195 v:-47.826 |
| Decimal | 1403547 |
| Hunter Lab | 35.823, -5.999, -29.342 |
Color equivalents
V034-3
Blue on Blue
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MQ4-58
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2060-30
Seaport Blue
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SW 6959
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4007-10C
Peek-A-Boo Blue
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MQ5-57
Traditional Blue
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8001-40G
Oh So Vo
Valspar US
8001-43G
Biro Blue
Valspar US
791
Paddington Blue
Benjamin Moore

