ColorplanCool December
BXC-88 · Behr
LRV 30 · dark
0 black100 white
Behr Cool December (BXC-88) is a deep cool gray with a cool blue undertone and an LRV of 30. Closest matches: Benjamin Moore Sweatshirt Gray (2126-40), Sherwin-Williams Daphne (SW 9151) and Farrow & Ball Selvedge (No.306). For trim, try Frost (57).
Room Preview
This photo shows walls only. Photos show the color in a real room's light; your own light will change it.
Suggested trim and ceiling are Behr whites that share this color's undertone.
Color Details
| Family | Gray |
| LRV | 29.5 (dark; 0 = black, 100 = pure white) |
| HEX | #8C959D |
| RGB | 140, 149, 157 |
| HSL | 208°, 8%, 58% |
About Cool December
Cool December (BXC-88) is a deep cool gray from Behr with a cool blue undertone. With an LRV of 30, Cool December absorbs more light than it reflects, so it works best in rooms with good natural light or where you want a cozier feel.
North-facing light makes Cool December read cooler and slightly darker, while warm south-facing light softens it. It's a good fit for bedrooms, offices, accent walls and kitchen cabinets. Next to Dark Pewter (PPU18-04), it's cooler.
How Cool December changes with the light
Cool December has a cool undertone. North light will push it cooler and grayer, while south and west light warm it up. If your room faces north, look at it next to a warm white trim.
North-facing rooms
Cool December has a cool undertone that north light will push cooler and grayer; warm white trim helps balance it.
East-facing rooms
Cool December will look warmer and brighter in the morning and cooler and grayer by afternoon; check a sample at both times.
South-facing rooms
Bright south light shows Cool December close to its true color, slightly lighter and warmer.
West-facing rooms
Cool December looks cool in the morning and warms up in the golden late-afternoon light.
See Cool December in real homes
Photos people have shared of Cool December in their own rooms. Opens Instagram or Pinterest in a new tab.
Cool December equivalents in other brands
The closest color from each brand. ΔE (“delta E”) scores how different two colors look: under 2.5 is very hard to tell apart on a wall, over 5 is clearly different.
Benjamin Moore
Very close · ΔE 2.0
Also close: Deep Silver (ΔE 2.7)
Compare side by side →Similar Behr colors
Cool December questions
What undertone does Cool December have?
Cool December has a cool blue undertone, so it reads as a cool color. North-facing light makes Cool December read cooler and slightly darker, while warm south-facing light softens it.
Is Cool December a light or dark color?
Cool December has a light reflectance value (LRV) of 29.5 on a scale where 0 is black and 100 is pure white, which makes it a deep color. With an LRV of 30, Cool December absorbs more light than it reflects, so it works best in rooms with good natural light or where you want a cozier feel.
What is the closest match to Cool December in other paint brands?
Benjamin Moore: Sweatshirt Gray 2126-40 (very close, ΔE 2.0); Sherwin-Williams: Daphne SW 9151 (close, ΔE 4.2); Farrow & Ball: Selvedge No.306 (close, ΔE 4.8). Matches are calculated with the CIEDE2000 color difference formula; always check a physical sample before buying.
What trim and ceiling color goes with Cool December?
Try Frost (57) on trim and Nano White (HDC-MD-06) on the ceiling. Both are Behr whites that share Cool December's undertone.
Where does Cool December work best?
Cool December works well in bedrooms, offices, accent walls and kitchen cabinets. With an LRV of 30, Cool December absorbs more light than it reflects, so it works best in rooms with good natural light or where you want a cozier feel.
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