Benjamin Moore Charcoal Slate / PM-8 / HC-178
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- Charcoal Slate for bedroom (3 photos)
- Charcoal Slate for living room (3 photos)
- Benjamin Moore Charcoal Slate for bathroom (4 photos)
- Benjamin Moore HC-178 on kitchen cabinets (5 photos)
- Charcoal Slate for exterior (6 photos)
- Benjamin Moore Charcoal Slate reviews (14 photos)
- What are Benjamin Moore Charcoal Slate undertones?
- Is Charcoal Slate HC-178 cool or warm?
- How light temperature affects on Charcoal Slate
- Monochromatic color scheme
- Complementary color scheme
- Color comparison and matching
- LRV of Charcoal Slate HC-178
- Color codes
- Color equivalents
| Official page: | Charcoal Slate HC-178 |
| Code: | HC-178 |
| Name: | Charcoal Slate |
| Brand: | Benjamin Moore |
What color is Benjamin Moore Charcoal Slate?
Benjamin Moore Charcoal Slate HC-178 is a medium-dark gray with a restrained cool cast that can read slightly blue in clear daylight. Its muted saturation keeps it grounded rather than icy, giving walls a substantial, architectural look. In lower light, Charcoal Slate deepens toward a soft charcoal, while brighter rooms reveal its subtle blue-gray character. It suits a study, dining room, or bedroom feature wall, and can also give cabinetry a clean, tailored presence. Pair it with warm white trim, pale oak, brushed nickel, and natural linen to offset its cooler tone.
Charcoal Slate for bedroom (3 photos)
We’ve hand-picked a beautiful collection of photos of this amazing grey shade used in real bedrooms. Take a look and imagine how this wonderful cool dark paint color could transform your own bedroom space.
@nickysinteriorpainting
@nickysinteriorpainting
@we_bought_a_house_
Charcoal Slate for living room (3 photos)
Check out this stunning dark color used in real living rooms. Explore how this grey shade can create a unique space
@mlevac_design
@1extremepainting
@jl_designly
Benjamin Moore HC-178 for bathroom (4 photos)
Looking for inspiration for your dream bathroom renovation project? These beautiful handpicked photos will show you this delightfully cool dark grey real bathrooms.
@little_blueberry_homestead
@justin_peters_painting
@gracepdesigns
@brushstrokesandbigdreams
Benjamin Moore HC-178 on kitchen cabinets (5 photos)
Want a stylish kitchen? View real-life photo examples of this fascinating cool grey hue is paired with backsplashes, countertops, and hardware.
@designit.buildit
@thekatbaileycollective
@thecabinetgalleryutah
@mainecustomkitchens
@premiereproskitchens
Charcoal Slate for exterior (6 photos)
Looking for a fresh new look for your house exterior or starting from skretch? We’ve collected pictures of real-life homes that have been painted with this cool grey hue. Find inspiration for your house’s exterior, front doors, gates, shutters, frames or windows.
@tjspaintingcompany
@tjspaintingcompany
@sarahettelmaninteriors
@tjspaintingcompany
@tjspaintingcompany
@vixpainting
Benjamin Moore Charcoal Slate reviews (14 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.
@socwoodworking
@ds_finishes
@we_bought_a_house_
@we_bought_a_house_
@paintworksnyc
@tuckerjamesdesignco
@bluebird_painting
@bluebird_painting
@insta.gramma_
@clare_wheadon_interiors
@djfbuilders
@birdsofafeatherhomeconcepts
@keepthepiecedesigns
@_pinchofpaint_
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What are Benjamin Moore Charcoal Slate undertones?
Charcoal Slate is a dark, low-saturation gray that reads close to neutral in the supplied digital sample, with only a very slight blue direction. Benjamin Moore describes it as having “moody indigo undertones,” which fits the way a subtle blue cast can sit within its predominantly charcoal-gray appearance rather than making it read as a clearly blue paint. In warm artificial light, that blue-leaning cast may be less noticeable and the color may appear more neutral or slightly softened; cooler daylight can make the blue-gray aspect easier to see.
Manufacturer information used in this description: official color page.
HEX value:
RGB code:
100, 103, 105
Is Benjamin Moore Charcoal Slate cool or warm?
warm
cool
With a hue of 204°, this black leans cool, but it is near the neutral line and may feel warmer in certain lighting.
HC-178 Charcoal Slate HSL code: 204, 2%, 40%
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 Charcoal Slate
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 black shade looks under different lighting:
4000K
Coordinating colors.
Colors that go with Benjamin Moore Charcoal Slate:
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
HC-178
Charcoal Slate
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 Charcoal Slate with a green hue, complementary colors are those with a red hue close to 24, such as Benjamin Moore Desert Shadows and Hint of Violet.
LRV of Charcoal Slate
Charcoal Slate has an LRV of 14.51% 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 14.51%, 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 | #646769 |
| RGB Decimal | 100, 103, 105 |
| RGB Percent | 39.22%, 40.39%, 41.18% |
| HSV | Hue: 204° Saturation: 4.76% Value: 41.18% |
| HSL | hsl(204, 2, 40) |
| CMYK | Cyan: 4.76 Magenta: 1.9 Yellow: 0.0 Key: 58.82 |
| YIQ | Y: 102.331 I: -2.43 Q: -0.012 |
| XYZ | X: 12.655 Y: 13.43 Z: 15.286 |
| CIE Lab | L:43.404 a:-0.735 b:-1.527 |
| CIE Luv | L:43.404 u:-1.759 v:-1.912 |
| Decimal | 6580073 |
| Hunter Lab | 36.647, -2.491, 0.921 |
Color equivalents
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CSP-15
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CSP-120
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Grizzle Gray
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1602
Gunmetal
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