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Charcoal Slate HC-178
On-screen approximation from the published RGB value. Order a physical sample before you decide.
Undertone: No measurable undertone (true neutral)
In CIELAB, Charcoal Slate sits at L* 43.4, a* -0.7, b* -1.5. Its hue angle is 244° and its chroma is 1.7, so it has essentially no color cast — a true neutral that will pick up the color of the light and surroundings. It classifies as neutral. Among Benjamin Moore colors with a similar LRV (±5), it is warmer (more yellow) than 26%.
LRV 14.5: very dark
Light Reflectance Value runs from 0 (absolute black) to 100 (perfect white). At 14.5, Charcoal Slate is lighter than 14% of Benjamin Moore colors. Near-black depth. Use on doors, trim, cabinetry, exteriors or moody rooms with strong artificial lighting.
Closest Sherwin-Williams match to Charcoal Slate
Ranked by CIEDE2000 color difference (ΔE) computed from published RGB values. Below 2 is hard to tell apart on the wall; above 4 is a different color.
| Color | Code | ΔE2000 | How close | |
|---|---|---|---|---|
| Web Gray | SW 7075 | 1.16 | Very close | |
| Night Out | SW 9560 | 1.67 | Very close | |
| Roycroft Pewter | SW 2848 | 2.28 | Close — difference visible side by side |
Closest Behr match to Charcoal Slate
Ranked by CIEDE2000 color difference (ΔE) computed from published RGB values. Below 2 is hard to tell apart on the wall; above 4 is a different color. Behr does not publish LRV, so Behr values here are estimates.
| Color | Code | ΔE2000 | How close | |
|---|---|---|---|---|
| Imperial Gray | PPU26-02 | 1.65 | Very close | |
| Liberty Bell Gray | HDC-CL-04G | 1.70 | Very close | |
| Molten Lead | BXC-63 | 2.13 | Close — difference visible side by side |
Similar Benjamin Moore colors
| Color | Code | ΔE2000 | How close | |
|---|---|---|---|---|
| Stormy Sky | 1616 | 0.95 | Practically identical | |
| City Shadow | CSP-60 | 2.13 | Close — difference visible side by side | |
| Trout Gray | 2124-20 | 2.33 | Close — difference visible side by side | |
| Bracken Slate | CW-690 | 2.53 | Close — difference visible side by side | |
| Ocean Floor | 1630 | 2.61 | Close — difference visible side by side | |
| Overcoat | CC-544 | 2.61 | Close — difference visible side by side |
Lighter and darker versions
Colors from Benjamin Moore with nearly the same hue and saturation, one step lighter or darker.
- Trout Gray 2124-20 · lighter, LRV 16.4
- Ashland Slate 1608 · lighter, LRV 16.1
- Blue Spruce 1637 · lighter, LRV 16.8
- Anchor Gray 2126-30 · darker, LRV 13.6
- Mountain Ridge 1456 · darker, LRV 12.9
- Flint AF-560 · darker, LRV 12.0
Colors that go with Charcoal Slate
Charcoal Slate is too close to neutral (chroma 1.7) for hue-based pairings to be meaningful; pair it with any color that shares its lean, and use a crisper white for trim.
Charcoal Slate vs popular colors
- Peppercorn (Sherwin-Williams SW 7674, ΔE 5.6) is darker (LRV 9.7 vs 14.5), more yellow/warm.
- Gray (Benjamin Moore 2121-10, ΔE 5.6) is darker (LRV 11.5 vs 14.5), more yellow/warm.
- Iron Mountain (Benjamin Moore 2134-30, ΔE 7.1) is darker (LRV 11.0 vs 14.5), more yellow/warm, more red/pink.