GREYS

December Nights

#7C878E

RGB 124, 135, 142 · HSL 203°, 7%, 52% · CMYK 13, 5, 0, 44

December Nights is #7C878E in HEX — rgb(124, 135, 142), hsl(203°, 7%, 52%), cmyk(13%, 5%, 0%, 44%).

December Nights pulls into the mid-tone end of the greys spectrum — HSL 203°, 7%, 52%. The neutral saturation makes it near-neutral and forgiving, and the hue reads cool. In interior projects it shines on walls, soft furniture, hard surfaces — as the project's quiet backbone. Reads best alongside white trim, natural wood, brass, soft black accents.

Color Codes

HEX#7C878E

RGB124, 135, 142

HSL203°, 7%, 52%

HSV203°, 13%, 56%

CMYK13, 5, 0, 44

Decimal8161166

CSS RGBrgb(124, 135, 142)

CSS HSLhsl(203, 7%, 52%)

Paint Matches — this color across 16 brands

Kilz

December Nights TB-36

Exact match

Dulux

Panda Pod SG6C7

ΔE 0.9 · #7F888F

RAL

Squirrel Grey 7000

ΔE 1.4 · #78858B

Sherwin-Williams

Storm Cloud SW6249

ΔE 1.6 · #7A848D

Valspar

Academy Gray 5001-2A

ΔE 2 · #778489

PPG

Garrison Gray 1039-5

ΔE 2.4 · #7B8588

Hallman-Lindsay

London Road 527

ΔE 2.5 · #7F878A

Behr

Cold Steel MQ5-20

ΔE 2.8 · #7D8C96

Vista Paint

Stone Age K-811

ΔE 2.9 · #81878A

Benjamin Moore

Smokestack 2131-40

ΔE 3 · #738388

Dunn-Edwards

Taliesin Blue DEC798

ΔE 4 · #707E84

IKEA

IKEA184 184

ΔE 4 · #788082

Kobra

Grey 42

ΔE 4.1 · #889099

Dutch Boy

Natural Gray VS-9332

ΔE 5.7 · #878787

Colorhouse

Wool .04 Wool-04

ΔE 5.7 · #8B8A8C

Farrow & Ball

De Nimes 299

ΔE 5.9 · #6A7C80

Light Reflectance & Undertone

Light Reflectance Value (LRV)

24/100

Dark

0 · DarkLight · 100

Soaks up light and feels moody and intimate. Great for studies, dining rooms and accent walls; pair with ample lighting.

Undertone

TemperatureNeutral MasstoneBlue UndertoneViolet

A near-neutral with a subtle neutral violet undertone — it will pick up colour from surrounding surfaces and shift noticeably under different light.

Color Theory

Complementary

#7C878E

#8D837C

Analogous

#7C8D8B

#7C878E

#7C7E8D

Triadic

#7C878E

#8D7C87

#878D7C

Split-Complementary

#7C878E

#8D7C7E

#8D8B7C

Tetradic

#7C878E

#8B7C8D

#8D837C

#7E8D7C

Monochromatic

#34393C

#586065

#7C878E

#A5ACB1

#CED2D4

Rectangle

#7C878E

#837C8D

#8D837C

#878D7C

Compound

#7C878E

#7C7E8D

#8D837C

#8D8B7C

Variations

Lighter

#969FA4

#B1B7BA

#D2D5D6

Darker

#626C72

#434A4F

#272B2E

Saturation

#828587

#7C878D

#4394C6

Interior Use

Best Rooms

living rooms, bedrooms, bathrooms

Best Uses

walls, soft furniture, hard surfaces

Pairs With

white trim, natural wood, brass, soft black accents

Accessibility (WCAG)

vs White

3.68:1

AA Large

vs Black

5.71:1

Deuteranopia

#7C878E

#81848F

Original → Simulated

Protanopia

#7C878E

#85858D

Original → Simulated

Tritanopia

#7C878E

#7C8887

Original → Simulated

Color Psychology

Quiet · Versatile

December Nights gets out of the way so the architecture and the people in the room do the work. The right neutral is never a default — it reads warm or cool, dusty or sharp depending on its undertone, and that undertone is what makes or breaks the room.

SymbolismBalance, sophistication, calm

PersonalityAdaptable, considered, timeless

versatileneutraltimelessbackdroptrimwall

How it looks under different light

#9C9286

Warm Bulb 2700K

Incandescent / soft white LED — pulls colour toward yellow/amber.

#7C878E

Daylight 5500K

Midday natural light or daylight-spec LED — closest to the paint chip.

#8A97AA

Cool Bulb 6500K

Cool white LED / overcast daylight — pulls colour toward blue.

Pairs With

#EAEBEB

Trim

Matched off-white

Same hue at 92% lightness — trim reads coordinated, not stark.

#F7F7F7

Ceiling

Whisper tint

Near-white with a hint of the hero's undertone — ceiling feels intentional.

#8D6A55

Accent

Complementary punch

Hue +180°, slightly muted for paint vs. screen — use on a door, frame, or single piece.

#574738

Floor

Walnut neutral

Warm mid-brown grounds the scheme regardless of hero hue.

Paint Info

Brand · Product Line

Benjamin Moore / Regal Select Interior

Recommended Finishes

Eggshell (walls) · Pearl (trim) · Matte (ceiling)

Eggshell hides imperfections on main walls while keeping the color rich; pearl on trim adds subtle sheen and easier cleaning; flat matte on ceilings prevents glare.

Best Surfaces

Primary walls · Cabinetry · Trim · Soft furniture

Coverage & Dry Time

Typical coverage 350-400 sq ft per gallon over a primed surface.

Touch-dry in ~1 hour. Recoat after 4 hours. Full cure 7-14 days.

Primer

Standard primer is adequate.

Application Tip

Use a 9" microfiber roller on walls and a 2.5" angled sash brush for trim cuts. Two coats minimum for even depth.

Paint Calculator

Wall area (m²)

Coats

Coverage (m² / L)

You'll need

4.0 litres

1.06 US gallons · room for one touch-up coat. Buy slightly more to ensure single-batch match.

Code Snippets

CSS — color

color: #7C878E;

CSS — background

background-color: #7C878E;

CSS Variable

--color-december-nights: #7C878E;

Tailwind v3 — config

colors: { 'december-nights': '#7C878E' }

Tailwind — arbitrary

bg-[#7C878E] text-[#7C878E]

SCSS

$december-nights: #7C878E;

Similar Colors

Englewood Cliffs

#7F8487 · ΔE 3.2

Smokestack Gray

#728287 · ΔE 3.3

Montpelier

#718087 · ΔE 3.4

Rock Gray

#7F8386 · ΔE 3.6

Shaker Gray

#83898A · ΔE 4.0

Charcoal Linen

#7C7F84 · ΔE 4.1

Mineral Alloy

#81909B · ΔE 4.2

Wolf Gray

#727C83 · ΔE 4.2

Built by DSGN.HOUSE Updated 2026

Our color tools run on our own catalogue of 26,000+ real paint colors across 16 brands — Benjamin Moore, Sherwin-Williams, Behr, Dulux, RAL and more — with the color math (HSL and CIELAB matching) computed in-house, not scraped from summaries. Every color you pick maps to a real, buyable paint with its code, so what you see here you can actually take to the store. We review and update these tools and their data regularly.

Created by Denis Kataev, founder of DSGN.HOUSE — a software engineer and digital entrepreneur building professional color-design tools for everyone.

Frequently Asked Questions

What color is #7C878E?

#7C878E is December Nights, a mid-tone grey with a cool undertone.

Is #7C878E warm or cool?

December Nights reads cool, which influences how it interacts with surrounding tones and natural light.

What rooms work best with December Nights?

December Nights works well in living rooms, bedrooms, bathrooms. Designers typically use it for walls, soft furniture, hard surfaces.

What colors pair well with December Nights?

December Nights pairs naturally with white trim, natural wood, brass, soft black accents. Its complementary color is also a strong contrast option for accents.

Where can I download December Nights?

You can download December Nights on DSGN.HOUSE in 15 designer formats including CSS gradient, Figma, Procreate swatches, Tailwind config, Adobe ASE, SVG, and 4K wallpapers — all free.

What's the hex code for December Nights?

The hex code is #7C878E. In RGB it's 124, 135, 142, and in HSL it's 203°, 7%, 52%.

← All colors