| Code: | M390-6 |
| Name: | Belfast |
| Brand: | Behr |
Behr M390-6 Belfast is a rich and sophisticated hue that adds a touch of elegance to any space. This deep shade of navy blue pairs beautifully with crisp whites and soft greys to create a classic and timeless look. For a more modern feel, consider combining Belfast with accents in Behr S520-5 Thundercloud or Behr W-F-610 Soft Focus. Whether used as a statement wall color or as part of a layered palette, Belfast brings a sense of depth and warmth to interiors. Embrace the versatility of Behr M390-6 Belfast to elevate your home decor with style and sophistication.
View the photos of real spaces painted with this green that were not included in specific categories.Close-ups, painted furniture, storages and dressers, hallways, stairs and ceilings.























Belfast has a clear green undertone based on its position in the color space. We identify undertones by isolating the pure hue (separating it from lightness and saturation), which avoids distortions caused by tints, tones, and shades.
This method is generally more reliable than judging undertones on a white background.
HEX value:
#558D4F
RGB code:
85, 141, 79
With a hue of 114°, this dark green reads cool based on its HSL hue position.
M390-6 Belfast HSL code: 114, 28%, 43%
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.
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 (Kelvins).
Use the slider to see how this dark green shade looks under different lighting:


4000K
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.
M390-6
Belfast
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 Belfast with a yellow hue, complementary colors are those with a purple hue close to 294, such as Behr Mata Hari and Ancestry Violet.
Belfast has an LRV of 18.01% 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 18.01%, 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.
We have collected almost every possible color code you could ever need. To copy the code, just click the icon to the right of it.
| Format | Code | |
|---|---|---|
| HEX | #558d4f | |
| RGB Decimal | 85, 141, 79 | |
| RGB Percent | 33.33%, 55.29%, 30.98% | |
| HSV | Hue: 114° Saturation: 43.97% Value: 55.29% | |
| HSL | hsl(114, 28, 43) | |
| CMYK | Cyan: 39.72 Magenta: 0.0 Yellow: 43.97 Key: 44.71 | |
| YIQ | Y: 117.188 I: -13.447 Q: -31.14 | |
| XYZ | X: 14.682 Y: 21.545 Z: 10.78 | |
| CIE Lab | L:53.541 a:-31.467 b:27.375 | |
| CIE Luv | L:53.541 u:-27.285 v:38.597 | |
| Decimal | 5606735 | |
| Hunter Lab | 46.416, -24.768, 18.722 |






