NEUTRALS

Black Green

#343E40

RGB 52, 62, 64 · HSL 190°, 10%, 23% · CMYK 19, 3, 0, 75

Black Green is #343E40 in HEX — rgb(52, 62, 64), hsl(190°, 10%, 23%), cmyk(19%, 3%, 0%, 75%).

Black Green pulls into the deep end of the neutrals spectrum — HSL 190°, 10%, 23%. 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#343E40

RGB52, 62, 64

HSL190°, 10%, 23%

HSV190°, 19%, 25%

CMYK19, 3, 0, 75

Decimal3423808

CSS RGBrgb(52, 62, 64)

CSS HSLhsl(190, 10%, 23%)

Paint Matches — this color across 16 brands

RAL

Black Green 6012

Exact match

Behr

Private Black N530-7

ΔE 0.7 · #363F41

Benjamin Moore

Regent 2136-20

ΔE 1.3 · #374143

Vista Paint

Moonless Sky K-848

ΔE 2.4 · #3A4040

Dulux

Dark Door SG5C9

ΔE 2.4 · #313B40

Sherwin-Williams

Rookwood Shutter Green SW2809

ΔE 3.2 · #303B39

Kilz

Night Magic RM230

ΔE 3.5 · #3C4348

Hallman-Lindsay

Dark River 494

ΔE 3.5 · #3E4445

Dunn-Edwards

Refined Green DEA181

ΔE 4 · #384543

PPG

Dark As Night 14-05

ΔE 4 · #3D4645

Colorhouse

Metal .06 Metal-06

ΔE 4 · #3F4647

Valspar

Dark Kettle Black 4011-2

ΔE 4.3 · #3F4043

Kobra

Black 44

ΔE 5.4 · #383737

Farrow & Ball

Off-Black 57

ΔE 5.5 · #444546

IKEA

IKEA186 186

ΔE 7.7 · #302F2F

Dutch Boy

Seal of Grey VS-9301

ΔE 12.4 · #575757

Light Reflectance & Undertone

Light Reflectance Value (LRV)

5/100

Very Dark

0 · DarkLight · 100

Absorbs almost all light — dramatic and cocooning. Needs strong artificial lighting and works best as an accent or in well-lit rooms.

Undertone

TemperatureCool MasstoneTeal UndertoneGreen

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

Color Theory

Complementary

#343E40

#413735

Analogous

#35413D

#343E40

#353941

Triadic

#343E40

#41353F

#3F4135

Split-Complementary

#343E40

#413539

#413D35

Tetradic

#343E40

#3D3541

#413735

#394135

Monochromatic

#0B0E0E

#121616

#343E40

#57676B

#7B8F93

Rectangle

#343E40

#373541

#413735

#3F4135

Compound

#343E40

#353941

#413735

#413D35

Variations

Lighter

#58686C

#7F9093

#B5BDBF

Darker

#2A3234

#1D2324

#111415

Saturation

#393C3C

#353F41

#1A505B

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

11.00:1

AAA

vs Black

1.91:1

Fail

Deuteranopia

#343E40

#3A3B40

Original → Simulated

Protanopia

#343E40

#3C3C40

Original → Simulated

Tritanopia

#343E40

#343E3E

Original → Simulated

Color Psychology

Quiet · Versatile

Black Green 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

#665B4B

Warm Bulb 2700K

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

#343E40

Daylight 5500K

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

#54606F

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.

#3E2A25

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 / Aura Interior (for richer color depth in deep tones)

Recommended Finishes

Matte (walls) · Pearl (trim) · Satin (doors)

Deep colors look best in matte — gloss exaggerates surface flaws. Reserve subtle sheen for trim, doors, and high-touch areas.

Best Surfaces

Accent walls · Doors · Cabinetry · Built-ins

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

Tinted primer in a similar value is highly recommended — saves a coat and prevents the wall colour from washing the surface.

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: #343E40;

CSS — background

background-color: #343E40;

CSS Variable

--color-black-green: #343E40;

Tailwind v3 — config

colors: { 'black-green': '#343E40' }

Tailwind — arbitrary

bg-[#343E40] text-[#343E40]

SCSS

$black-green: #343E40;

Similar Colors

Regent Green

#364042 · ΔE 0.9

Midnight

#373D3F · ΔE 1.7

Salamander

#2F3E3E · ΔE 2.6

Soot

#373C41 · ΔE 3.0

Blacktop

#393D3C · ΔE 3.1

Black Ink

#373A3D · ΔE 3.3

Black Iron

#3A3C3E · ΔE 3.4

Ebony King

#383A3C · ΔE 3.6

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 #343E40?

#343E40 is Black Green, a deep neutral with a cool undertone.

Is #343E40 warm or cool?

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

What rooms work best with Black Green?

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

What colors pair well with Black Green?

Black Green 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 Black Green?

You can download Black Green 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 Black Green?

The hex code is #343E40. In RGB it's 52, 62, 64, and in HSL it's 190°, 10%, 23%.

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