NEUTRALS

Nocturnal

#56666C

RGB 86, 102, 108 · HSL 196°, 11%, 38% · CMYK 20, 6, 0, 58

Nocturnal is #56666C in HEX — rgb(86, 102, 108), hsl(196°, 11%, 38%), cmyk(20%, 6%, 0%, 58%).

Nocturnal pulls into the rich end of the neutrals spectrum — HSL 196°, 11%, 38%. The neutral saturation makes it near-neutral and forgiving, and the hue reads cool. In interior projects it shines on main walls, trims, ceilings — versatile across nearly any style. Reads best alongside soft whites, natural wood, matte black trim, linen.

Color Codes

HEX#56666C

RGB86, 102, 108

HSL196°, 11%, 38%

HSV196°, 20%, 42%

CMYK20, 6, 0, 58

Decimal5662316

CSS RGBrgb(86, 102, 108)

CSS HSLhsl(196, 11%, 38%)

Paint Matches — this color across 16 brands

Benjamin Moore

Nocturnal 2135-30

Exact match

Dulux

Vipere SG5C6

ΔE 0.8 · #54656C

Sherwin-Williams

Grays Harbor SW6236

ΔE 2.4 · #596368

Kilz

Charcoal RM150

ΔE 2.6 · #566466

PPG

Lava Gray 1038-6

ΔE 2.6 · #5E686D

Dunn-Edwards

Iron Creek DE5775

ΔE 2.9 · #50676B

Behr

Blue Metal HDC-AC-25

ΔE 2.9 · #596267

Vista Paint

Blue Lake K-793

ΔE 3 · #57626B

Farrow & Ball

Inchyra Blue 289

ΔE 3.1 · #586768

Hallman-Lindsay

Deep Lagoon 507

ΔE 3.7 · #5E6C76

Valspar

Cobalt Cannon 5001-2C

ΔE 3.7 · #596164

Dutch Boy

Ocean Blue D-6743

ΔE 5.2 · #4C6A74

IKEA

IKEA156 156

ΔE 6.5 · #676973

Colorhouse

Wool .06 Wool-06

ΔE 6.6 · #485761

RAL

Basalt Grey 7012

ΔE 8.4 · #4E5754

Kobra

Green 38

ΔE 14.1 · #415448

Light Reflectance & Undertone

Light Reflectance Value (LRV)

13/100

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

TemperatureCool MasstoneBlue UndertoneViolet

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

Color Theory

Complementary

#56666C

#6C5C56

Analogous

#566C67

#56666C

#565B6C

Triadic

#56666C

#6C5666

#666C56

Split-Complementary

#56666C

#6C565B

#6C6756

Tetradic

#56666C

#67566C

#6C5C56

#5B6C56

Monochromatic

#121517

#343E41

#56666C

#7A8D94

#A4B2B6

Rectangle

#56666C

#5C566C

#6C5C56

#666C56

Compound

#56666C

#565B6C

#6C5C56

#6C6756

Variations

Lighter

#73878E

#97A4A9

#C3CACC

Darker

#455256

#2F383C

#1B2123

Saturation

#5E6264

#56666C

#2B7A97

Interior Use

Best Rooms

living rooms, bedrooms, kitchens

Best Uses

main walls, trim, accents

Pairs With

soft whites, natural wood, brass, matte black trim

Accessibility (WCAG)

vs White

5.98:1

vs Black

3.51:1

AA Large

Deuteranopia

#56666C

#5F626D

Original → Simulated

Protanopia

#56666C

#64646B

Original → Simulated

Tritanopia

#56666C

#566766

Original → Simulated

Color Psychology

Quiet · Versatile

Nocturnal 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

#80796C

Warm Bulb 2700K

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

#56666C

Daylight 5500K

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

#6D7E90

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.

#67493E

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 · Doors · Mouldings

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: #56666C;

CSS — background

background-color: #56666C;

CSS Variable

--color-nocturnal: #56666C;

Tailwind v3 — config

colors: { 'nocturnal': '#56666C' }

Tailwind — arbitrary

bg-[#56666C] text-[#56666C]

SCSS

$nocturnal: #56666C;

Similar Colors

Nocturnal Gray

#55656B · ΔE 0.4

Powell Gray

#5A656C · ΔE 2.0

Ocean Floor

#5F666C · ΔE 3.5

Spellbound

#4E646F · ΔE 3.7

Vermont Slate

#4C636E · ΔE 4.1

Blue Spruce

#607077 · ΔE 4.1

Anchor Gray

#5C6167 · ΔE 4.4

Knoxville Gray

#5E6C6C · ΔE 4.4

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 #56666C?

#56666C is Nocturnal, a deep neutral with a cool undertone.

Is #56666C warm or cool?

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

What rooms work best with Nocturnal?

Nocturnal works well in living rooms, bedrooms, kitchens. Designers typically use it for main walls, trim, accents.

What colors pair well with Nocturnal?

Nocturnal pairs naturally with soft whites, natural wood, brass, matte black trim. Its complementary color is also a strong contrast option for accents.

Where can I download Nocturnal?

You can download Nocturnal 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 Nocturnal?

The hex code is #56666C. In RGB it's 86, 102, 108, and in HSL it's 196°, 11%, 38%.

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