Benjamin Moore Thundercloud Gray 2124-40
Contentsshow +hide -
- Benjamin Moore 2124-40 on kitchen cabinets (4 photos)
- Benjamin Moore Thundercloud Gray reviews (6 photos)
- What are Benjamin Moore Thundercloud Gray undertones?
- Is Thundercloud Gray 2124-40 cool or warm?
- How light temperature affects on Thundercloud Gray
- Monochromatic color scheme
- Complementary color scheme
- Color comparison and matching
- LRV of Thundercloud Gray 2124-40
- Color codes
- Color equivalents
| Official page: | Thundercloud Gray 2124-40 |
| Code: | 2124-40 |
| Name: | Thundercloud Gray |
| Brand: | Benjamin Moore |
What color is Benjamin Moore Thundercloud Gray?
Benjamin Moore Thundercloud Gray 2124-40 is a light, muted gray with a subtle cool cast that keeps it from reading flat or beige. Its faint blue-gray lean is most noticeable in bright daylight, while softer interior lighting can make it appear more neutral and gently silvery. This shade has enough depth for full-room walls without making a bedroom, bath, or hallway feel closed in. Pair it with crisp white trim, pale oak, brushed nickel, or charcoal details for a clean, restrained contrast. Thundercloud Gray also suits painted cabinetry or an exterior body color when a quiet, low-saturation gray is needed.
Benjamin Moore 2124-40 on kitchen cabinets (4 photos)
Want a stylish kitchen? View real-life photo examples of this fascinating cool grey hue is paired with backsplashes, countertops, and hardware.




Benjamin Moore Thundercloud Gray reviews (6 photos)
View the photos of real spaces painted with this grey that were not included in specific categories. Close-ups, painted furniture, storages and dressers, hallways, stairs and ceilings.






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What are Benjamin Moore Thundercloud Gray undertones?
Thundercloud Gray reads as a mid-light, low-saturation gray with a near-neutral overall character. In the supplied digital sample, its blue direction is present but weak, so it is best viewed as a gray that may lean slightly cool rather than one with a strong, definite undertone. Benjamin Moore describes it as a medium gray with a cool, rainy-sky mood, which fits its visibly restrained gray-blue cast without changing its main gray family. Warm artificial light may soften its cool appearance, while cool daylight can make the subtle blue lean easier to notice.
Manufacturer information used in this description: official color page.
HEX value:
RGB code:
184, 189, 192
Is Benjamin Moore Thundercloud Gray cool or warm?
With a hue of 202°, this Grey leans cool, but it is near the neutral line and may feel warmer in certain lighting.
2124-40 Thundercloud Gray HSL code: 202, 6%, 74%
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 Thundercloud Gray
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 Grey shade looks under different lighting:


4000K
Coordinating colors.
Colors that go with Benjamin Moore Thundercloud Gray:
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
2124-40
Thundercloud Gray
Darker shades
2124-40
Thundercloud Gray
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 Thundercloud Gray with a green hue, complementary colors are those with a red hue close to 22, such as Benjamin Moore Quietly Violet and Desert Shadows.
LRV of Thundercloud Gray
Thundercloud Gray has an LRV of 50.22% and refers to Light Medium colors that reflect half of the incident 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 50.22%, 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 | #B8BDC0 |
| RGB Decimal | 184, 189, 192 |
| RGB Percent | 72.16%, 74.12%, 75.29% |
| HSV | Hue: 202° Saturation: 4.17% Value: 75.29% |
| HSL | hsl(202, 6, 74) |
| CMYK | Cyan: 4.17 Magenta: 1.56 Yellow: 0.0 Key: 24.71 |
| YIQ | Y: 187.847 I: -3.944 Q: -0.124 |
| XYZ | X: 47.477 Y: 50.391 Z: 57.08 |
| CIE Lab | L:76.309 a:-1.162 b:-2.111 |
| CIE Luv | L:76.309 u:-2.957 v:-2.965 |
| Decimal | 12107200 |
| Hunter Lab | 70.987, -4.844, 2.016 |
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