GREENS

Fathoms Below

#3F5A5F

RGB 63, 90, 95 · HSL 189°, 20%, 31% · CMYK 34, 5, 0, 63

Fathoms Below is #3F5A5F in HEX — rgb(63, 90, 95), hsl(189°, 20%, 31%), cmyk(34%, 5%, 0%, 63%).

Fathoms Below pulls into the rich end of the greens spectrum — HSL 189°, 20%, 31%. The muted saturation makes it quiet but present, and the hue reads cool. In interior projects it shines on bedrooms, bathrooms, libraries — for grounding, restorative spaces. Reads best alongside soft white walls, oak floors, brass, warm clay accents.

Color Codes

HEX#3F5A5F

RGB63, 90, 95

HSL189°, 20%, 31%

HSV189°, 34%, 37%

CMYK34, 5, 0, 63

Decimal4151903

CSS RGBrgb(63, 90, 95)

CSS HSLhsl(189, 20%, 31%)

Paint Matches — this color across 16 brands

Kilz

Fathoms Below RE290-02

Exact match

Benjamin Moore

Olympus 679

ΔE 1.4 · #3E595C

Hallman-Lindsay

Volute historic-volute

ΔE 1.8 · #445A5E

Dulux

Great Void S33B7

ΔE 2.1 · #3B5860

Behr

Marine Magic 740F-6

ΔE 2.2 · #3B5B5E

Vista Paint

Volute C-1379

ΔE 3.3 · #495B5F

PPG

Mountain Pine 1034-7

ΔE 3.4 · #3B5257

Sherwin-Williams

Still Water SW6223

ΔE 3.7 · #4A5D5F

Dunn-Edwards

Dark Shadows DEA183

ΔE 4.1 · #455559

Valspar

Sequoia Glade 5002-4C

ΔE 4.6 · #4D6061

Colorhouse

Wool .06 Wool-06

ΔE 5.6 · #485761

Farrow & Ball

Hague Blue 30

ΔE 6.3 · #3D4E57

Dutch Boy

Ocean Blue D-6743

ΔE 7.2 · #4C6A74

RAL

Basalt Grey 7012

ΔE 8 · #4E5754

IKEA

IKEA152 152

ΔE 8.6 · #494F50

Kobra

Green 38

ΔE 11.1 · #415448

Light Reflectance & Undertone

Light Reflectance Value (LRV)

9/100

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

Reads as a cool teal with a green undertone showing through, especially in daylight. Pair trim and adjacent colours to either calm or amplify that undertone.

Color Theory

Complementary

#3F5A5F

#5F443F

Analogous

#3F5F54

#3F5A5F

#3F4A5F

Triadic

#3F5A5F

#5F3F5A

#5A5F3F

Split-Complementary

#3F5A5F

#5F3F4A

#5F543F

Tetradic

#3F5A5F

#543F5F

#5F443F

#4A5F3F

Monochromatic

#0A0F0F

#212F31

#3F5A5F

#5E868D

#88A9AF

Rectangle

#3F5A5F

#443F5F

#5F443F

#5A5F3F

Compound

#3F5A5F

#3F4A5F

#5F443F

#5F543F

Variations

Lighter

#5B8289

#83A2A7

#B9C7CA

Darker

#32494D

#223235

#131D1F

Saturation

#4A5254

#3F5A5F

#20707E

Interior Use

Best Rooms

bedrooms, bathrooms, libraries

Best Uses

main walls, cabinetry, soft furniture

Pairs With

soft white walls, oak floors, brass, warm clay accents

Accessibility (WCAG)

vs White

7.40:1

AAA

vs Black

2.84:1

Fail

Deuteranopia

#3F5A5F

#4F5360

Original → Simulated

Protanopia

#3F5A5F

#56565E

Original → Simulated

Tritanopia

#3F5A5F

#3F5A59

Original → Simulated

Color Psychology

Calm · Restorative

Fathoms Below sits in the part of the spectrum the eye relaxes into. Designers reach for green when a room needs to feel like a refuge — bedrooms, libraries, bathrooms — because it lowers visual blood-pressure without flattening the space.

SymbolismGrowth, balance, nature

PersonalitySteady, grounded, thoughtful

calmnaturerestorativebalancebedroomlibrary

How it looks under different light

#6F7062

Warm Bulb 2700K

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

#3F5A5F

Daylight 5500K

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

#5C7587

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.

#F7F7F8

Ceiling

Whisper tint

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

#543732

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: #3F5A5F;

CSS — background

background-color: #3F5A5F;

CSS Variable

--color-fathoms-below: #3F5A5F;

Tailwind v3 — config

colors: { 'fathoms-below': '#3F5A5F' }

Tailwind — arbitrary

bg-[#3F5A5F] text-[#3F5A5F]

SCSS

$fathoms-below: #3F5A5F;

Similar Colors

Olympus Green

#3D585B · ΔE 1.6

Everard Blue

#3D5459 · ΔE 2.6

Yorktowne Green

#465A5D · ΔE 2.7

Newburg Green

#445962 · ΔE 3.5

Amazon Green

#415457 · ΔE 3.6

Stained Glass

#44646D · ΔE 4.8

Narragansett Green

#435155 · ΔE 5.5

Mediterranean Teal

#465956 · ΔE 5.5

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 #3F5A5F?

#3F5A5F is Fathoms Below, a deep green with a cool undertone.

Is #3F5A5F warm or cool?

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

What rooms work best with Fathoms Below?

Fathoms Below works well in bedrooms, bathrooms, libraries. Designers typically use it for main walls, cabinetry, soft furniture.

What colors pair well with Fathoms Below?

Fathoms Below pairs naturally with soft white walls, oak floors, brass, warm clay accents. Its complementary color is also a strong contrast option for accents.

Where can I download Fathoms Below?

You can download Fathoms Below 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 Fathoms Below?

The hex code is #3F5A5F. In RGB it's 63, 90, 95, and in HSL it's 189°, 20%, 31%.

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