Valspar US Mountain River 4005-6C
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| Code: | 4005-6C |
| Name: | Mountain River |
| Brand: | Valspar US |
What color is Valspar US Mountain River?
Let's dive into a full Mountain River paint color review. Take a look at pictures of real interiors and exteriors painted with beautiful 4005-6C. Find out if this gorgeous cold blue paint color would look great on your living room walls or trims, kitchen cabinet, bedroom accent wall, bathroom or house exterior.
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What are Valspar US Mountain River undertones?
Mountain River is a deep, muted 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:
63, 87, 106
Is Valspar US Mountain River cool or warm?
With a hue of 207°, this dark blue reads cool based on its HSL hue position.
4005-6C Mountain River HSL code: 207, 25%, 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 Mountain River
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 Valspar US Mountain River:
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
4005-6C
Mountain River
Darker shades
4005-6C
Mountain River
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 Mountain River with a green hue, complementary colors are those with a red hue close to 27, such as Valspar US Cocoa Berry and Soft Rabbit Brown.
LRV of Mountain River
Mountain River has an LRV of 8.96% 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 8.96%, 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 | #3f576a |
| RGB Decimal | 63, 87, 106 |
| RGB Percent | 24.71%, 34.12%, 41.57% |
| HSV | Hue: 207° Saturation: 40.57% Value: 41.57% |
| HSL | hsl(207, 25, 33) |
| CMYK | Cyan: 40.57 Magenta: 17.92 Yellow: 0.0 Key: 58.43 |
| YIQ | Y: 81.99 I: -20.407 Q: 0.836 |
| XYZ | X: 8.059 Y: 8.913 Z: 14.928 |
| CIE Lab | L:35.817 a:-3.692 b:-13.788 |
| CIE Luv | L:35.817 u:-11.659 v:-17.832 |
| Decimal | 4151146 |
| Hunter Lab | 29.855, -4.065, -8.746 |
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