NEUTRALS

Eclipse

#3F3939

RGB 63, 57, 57 · HSL 0°, 5%, 24% · CMYK 0, 10, 10, 75

Eclipse is #3F3939 in HEX — rgb(63, 57, 57), hsl(0°, 5%, 24%), cmyk(0%, 10%, 10%, 75%).

Eclipse pulls into the deep end of the neutrals spectrum — HSL 0°, 5%, 24%. 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#3F3939

RGB63, 57, 57

HSL0°, 5%, 24%

HSV0°, 10%, 25%

CMYK0, 10, 10, 75

Decimal4143417

CSS RGBrgb(63, 57, 57)

CSS HSLhsl(0, 5%, 24%)

Paint Matches — this color across 16 brands

RAL

Grey Brown 8019

ΔE 0.4 · #403A3A

Vista Paint

Evening Empress K-768

ΔE 1.5 · #433C3C

Farrow & Ball

Pitch Black 256

ΔE 2 · #3B3938

Benjamin Moore

Black 2128-10

ΔE 2.2 · #3A3837

Dulux

Wayward Grey SG6B8

ΔE 2.2 · #3F3C3E

Dunn-Edwards

Black DEA187

ΔE 2.3 · #3B3A3A

Sherwin-Williams

Darkroom SW7083

ΔE 2.6 · #443E40

Kobra

Black 44

ΔE 2.7 · #383737

Behr

Off Broadway MQ1-35

ΔE 2.7 · #433F3E

Hallman-Lindsay

Sayward Pine historic-sayward-pine

ΔE 3 · #383839

Kilz

True Black RM260A

ΔE 3 · #3D3D3D

PPG

Black Magic 1001-7

ΔE 3.5 · #414040

Valspar

Antique Burgundy 1011-8

ΔE 4.3 · #493C3F

Colorhouse

Nourish .06 Nourish-06

ΔE 5.4 · #313536

IKEA

IKEA186 186

ΔE 5.6 · #302F2F

Dutch Boy

Dark Chocolate D-6782

ΔE 7.9 · #392A27

Light Reflectance & Undertone

Light Reflectance Value (LRV)

4/100

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

TemperatureNeutral MasstoneRed UndertonePink

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

Color Theory

Complementary

#3F3939

#3A4040

Analogous

#403A3D

#3F3939

#403D3A

Triadic

#3F3939

#3A403A

#3A3A40

Split-Complementary

#3F3939

#3A403D

#3A3D40

Tetradic

#3F3939

#3D403A

#3A4040

#3D3A40

Monochromatic

#0D0C0C

#181616

#3F3939

#685E5E

#908484

Rectangle

#3F3939

#40403A

#3A4040

#3A3A40

Compound

#3F3939

#403D3A

#3A4040

#3A3D40

Variations

Lighter

#695F5F

#908686

#BEB9B9

Darker

#342E2E

#242020

#151212

Saturation

#3E3C3C

#403A3A

#5D1D1D

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

11.32:1

AAA

vs Black

1.86:1

Fail

Deuteranopia

#3F3939

#3C3B39

Original → Simulated

Protanopia

#3F3939

#3A3A39

Original → Simulated

Tritanopia

#3F3939

Original → Simulated

Color Psychology

Quiet · Versatile

Eclipse 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

#6F5746

Warm Bulb 2700K

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

#3F3939

Daylight 5500K

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

#5C5C6A

Cool Bulb 6500K

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

Pairs With

#EBEAEA

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.

#274141

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: #3F3939;

CSS — background

background-color: #3F3939;

CSS Variable

--color-eclipse: #3F3939;

Tailwind v3 — config

colors: { 'eclipse': '#3F3939' }

Tailwind — arbitrary

bg-[#3F3939] text-[#3F3939]

SCSS

$eclipse: #3F3939;

Similar Colors

Black Beauty

#393736 · ΔE 2.4

Plum Martini

#403C3F · ΔE 2.5

Carbon Copy

#383537 · ΔE 2.8

Black Bean Soup

#453C39 · ΔE 2.9

Black Jack

#3D3D3E · ΔE 3.1

Black Tar

#38393A · ΔE 3.4

Night Shade

#443A36 · ΔE 3.4

Mopboard Black

#373839 · ΔE 3.5

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 #3F3939?

#3F3939 is Eclipse, a deep neutral with a cool undertone.

Is #3F3939 warm or cool?

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

What rooms work best with Eclipse?

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

What colors pair well with Eclipse?

Eclipse 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 Eclipse?

You can download Eclipse 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 Eclipse?

The hex code is #3F3939. In RGB it's 63, 57, 57, and in HSL it's 0°, 5%, 24%.

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