NCS S 4020-B10G
| Code: | S 4020-B10G |
| Name: | |
| Brand: | NCS |
What color is NCS S 4020-B10G?
Let’s dive into a full S 4020-B10G paint color review. Take a look at pictures of real interiors and exteriors painted with beautiful S 4020-B10G. 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.
S 4020-B10G for bedroom
We’ve hand-picked a beautiful collection of photos of this amazing Beige shade used in real bedrooms. Take a look and imagine how this wonderful cool Mid-tone paint color could transform your own bedroom space.
S 4020-B10G for living room
Check out this stunning Mid-tone color used in real living rooms. Explore how this Blue shade can create a unique space
NCS S 4020-B10G for bathroom
Looking for inspiration for your dream bathroom renovation project? These beautiful handpicked photos will show you this delightfully cool Mid-tone real bathrooms.
NCS S 4020-B10G on kitchen cabinets
Want a stylish kitchen? View real-life photo examples of this fascinating cool hue is paired with backsplashes, countertops, and hardware.
NCS S 4020-B10G reviews
View the photos of real spaces painted with this that were not included in specific categories.Close-ups, painted furniture, storages and dressers, hallways, stairs and ceilings.
Try before you buy

100% accurate
reusable paint samples
Peel, stick,
and repeat
Twice painted
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What are NCS S 4020-B10G undertones?
The undertone of S 4020-B10G can be accurately described as a Blue hue, as is apparent from the color space provided. By isolating the pure hue and eliminating any tints, tones, and shades, we were able to precisely determine its undertone. This approach has proven to be more accurate than traditional methods of defining undertones on a white background, which are now considered outdated.
HEX value
HEX value:
#648A95
RGB code:
100, 138, 149
Is NCS S 4020-B10G cool or warm?
With a hue of 193° thisBluerefers cool paint shade according to HSL (Hue, Saturation, Lightness) on the color wheel.
S 4020-B10G HSL code: 193, 20%, 49%
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.
- Cooler hues have a calm and relaxation effect
- Cool blue shades make a room feel sleek, fresh, and modern, perfect for bedrooms, bathrooms, and home offices where a sense of calm and sophistication is desired.
- Using mid-tone cool colors like soft greys and muted blues can help create a calming and modern look in rooms like home offices, bathrooms, and bedrooms. But avoid using these shades in rooms without natural light, as they may look dull.
Act like a pro: Mixing warm and cool shades is a must have to get harmonius interior. Add accents that contrast with the primary color to create visual balance. If your walls are a warm color, don’t forget to add accent in cold colors (furniture, art, décor). A good practice is too use a complementary color scheme.
How light temperature affects S 4020-B10G
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 Blue shade looks under different lighting:


4000K
Coordinating colors.
Colors that go with NCS S 4020-B10G:
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
S 4020-B10G
Darker shades
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 S 4020-B10G with a green hue, complementary colors are those with a red hue close to 13, such as NCS and S 4005-Y50R.
S 4020-B10G
Color codes
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 | #648a95 | |
| RGB Decimal | 100, 138, 149 | |
| RGB Percent | 39.22%, 54.12%, 58.43% | |
| HSV | Hue: 193° Saturation: 32.89% Value: 58.43% | |
| HSL | hsl(193, 20, 49) | |
| CMYK | Cyan: 32.89 Magenta: 7.38 Yellow: 0.0 Key: 41.57 | |
| YIQ | Y: 127.892 I: -26.179 Q: -4.615 | |
| XYZ | X: 19.767 Y: 23.055 Z: 31.834 | |
| CIE Lab | L:55.129 a:-10.357 b:-10.105 | |
| CIE Luv | L:55.129 u:-18.895 v:-13.137 | |
| Decimal | 6589077 | |
| Hunter Lab | 48.016, -10.544, -5.698 |
Color equivalents
S450-5
Oarsman Blue
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SW 9058
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S 4020-B30G
NCS

SW 7609
Georgian Revival Blue
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SW 7612
Mountain Stream
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1671
West Coast
Benjamin Moore
30BG 23/124
Jewelled Creek 2
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HC-151
Buckland Blue
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260
Air Force Blue
Little Greene

AF-505
Blue Echo
Benjamin Moore

SW 2864
Stratford Blue
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MQ5-60
South Pacific
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1644
Blue Dusk
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S470-5
Blueprint
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S480-5
Blue Moon Bay
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S460-5
Blue Square
Behr
SW 6501
Manitou Blue
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MQ6-03
Winter In Paris
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HDC-AC-23A
Cabana Blue
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70BG 28/169
Stonewashed Blue
Dulux




































