# Benjamin Moore Charcoal Slate

Source: [https://plan-home.com/color/benjamin-moore-charcoal-slate-hc-178](https://plan-home.com/color/benjamin-moore-charcoal-slate-hc-178)

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.

## Color details
- **Brand or system:** Benjamin Moore
- **Color name:** Charcoal Slate
- **Color code:** HC-178
- **Alternative names:** PM-8
- **HEX:** #646769
- **RGB:** 100, 103, 105
- **LRV:** 14.51%
- **Brightness:** Dark
- **Color families:** Grey
- **Temperature:** cool
- **Undertones:** blue

## Color codes
- **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

## Equivalent and related colors
- [Benjamin Moore Stormy Sky](https://plan-home.com/color/benjamin-moore-stormy-sky-1616)
- [Sherwin Williams Web Gray](https://plan-home.com/color/web-gray-sw-7075)
- [Behr Imperial Gray](https://plan-home.com/color/behr-imperial-gray)
- [Sherwin Williams Night Out](https://plan-home.com/color/night-out-sw-9560)
- [Benjamin Moore City Shadow](https://plan-home.com/color/benjamin-moore-city-shadow-csp-60)
- [Behr Digital](https://plan-home.com/color/behr-digital)
- [Sherwin Williams Roycroft Pewter](https://plan-home.com/color/roycroft-pewter-sw-2848)
- [Behr Binary Star](https://plan-home.com/color/behr-binary-star)
- [Benjamin Moore Trout Gray](https://plan-home.com/color/benjamin-moore-trout-gray-2124-20)
- [Behr Cordite](https://plan-home.com/color/behr-cordite)
- [Benjamin Moore Bracken Slate](https://plan-home.com/color/benjamin-moore-bracken-slate-cw-690)
- [Behr Dark Ash](https://plan-home.com/color/behr-dark-ash)
- [Benjamin Moore Ocean Floor](https://plan-home.com/color/benjamin-moore-ocean-floor-1630)
- [Benjamin Moore Overcoat](https://plan-home.com/color/benjamin-moore-overcoat-cc-544)
- [Benjamin Moore Ashland Slate](https://plan-home.com/color/benjamin-moore-ashland-slate-1608)
- [Benjamin Moore Arctic Seal](https://plan-home.com/color/benjamin-moore-arctic-seal-csp-15)
- [Sherwin Williams Gibraltar](https://plan-home.com/color/gibraltar-sw-6257)
- [Benjamin Moore Burnt Ember](https://plan-home.com/color/benjamin-moore-burnt-ember-csp-120)
- [Sherwin Williams Grizzle Gray](https://plan-home.com/color/grizzle-gray-sw-7068)
- [Benjamin Moore Gunmetal](https://plan-home.com/color/benjamin-moore-gunmetal-1602)

## Lighter monochromatic colors
- [Benjamin Moore Steel Wool](https://plan-home.com/color/benjamin-moore-steel-wool-2121-20)
- [Benjamin Moore Englewood Cliffs](https://plan-home.com/color/benjamin-moore-englewood-cliffs-1607)
- [Benjamin Moore Trout Gray](https://plan-home.com/color/benjamin-moore-trout-gray-2124-20)
- [Benjamin Moore Rock Gray](https://plan-home.com/color/benjamin-moore-rock-gray-1615)
- [Benjamin Moore Stormy Sky](https://plan-home.com/color/benjamin-moore-stormy-sky-1616)

## Darker monochromatic colors
- [Benjamin Moore Black Panther](https://plan-home.com/color/benjamin-moore-black-panther-2125-10)
- [Benjamin Moore Graphite](https://plan-home.com/color/benjamin-moore-graphite-1603)
- [Benjamin Moore Ambler Slate](https://plan-home.com/color/benjamin-moore-ambler-slate-cw-685)
- [Benjamin Moore Raccoon Fur](https://plan-home.com/color/benjamin-moore-raccoon-fur-2126-20)
- [Benjamin Moore Westcott Navy](https://plan-home.com/color/benjamin-moore-westcott-navy-1624)

## Complementary colors
- [Benjamin Moore Desert Shadows](https://plan-home.com/color/benjamin-moore-desert-shadows-2114-30)
- [Benjamin Moore Hint of Violet](https://plan-home.com/color/benjamin-moore-hint-of-violet-2114-60)
- [Benjamin Moore Antique Pearl](https://plan-home.com/color/benjamin-moore-antique-pearl-2113-70)
- [Benjamin Moore Night Shade](https://plan-home.com/color/benjamin-moore-night-shade-2116-10)
- [Benjamin Moore Woodcliff Lake](https://plan-home.com/color/benjamin-moore-woodcliff-lake-980)
- [Benjamin Moore Silver Fox](https://plan-home.com/color/benjamin-moore-silver-fox-2108-50)
- [Benjamin Moore Upper West Side](https://plan-home.com/color/benjamin-moore-upper-west-side-csp-70)

Official product page: https://www.benjaminmoore.com/en-us/paint-colors/color/HC-178

## Important note

Digital color values and matches are approximate. Screens, lighting, paint finish, surface texture, and application method can change how a color appears. Test a physical paint sample before making a final decision.