GREENS

Nero's Green

#31817E

RGB 49, 129, 126 · HSL 178°, 45%, 35% · CMYK 62, 0, 2, 49

Nero's Green is #31817E in HEX — rgb(49, 129, 126), hsl(178°, 45%, 35%), cmyk(62%, 0%, 2%, 49%).

Nero's Green pulls into the rich end of the greens spectrum — HSL 178°, 45%, 35%. The balanced saturation makes it confident without overpowering, 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#31817E

RGB49, 129, 126

HSL178°, 45%, 35%

HSV178°, 62%, 51%

CMYK62, 0, 2, 49

Decimal3244414

CSS RGBrgb(49, 129, 126)

CSS HSLhsl(178, 45%, 35%)

Paint Matches — this color across 16 brands

Dulux

Nero's Green S29E7

Exact match

Vista Paint

Atmosphere C-688

ΔE 2.4 · #3C8381

Hallman-Lindsay

Atmosphere 689

ΔE 2.4 · #3A8483

PPG

Jade Jewel 1147-6

ΔE 3.8 · #247E81

Kilz

Tropical Lagoon RF270-02

ΔE 3.9 · #1A7B7C

Benjamin Moore

Intercoastal 672

ΔE 4.5 · #2F7673

Behr

Taos Turquoise HDC-FL13-12

ΔE 5 · #2B8C8B

Valspar

Elegant Silk 5010-7

ΔE 5.4 · #378377

Dunn-Edwards

Deep Lagoon DE5740

ΔE 5.6 · #2B888D

RAL

Mint Turquoise 6033

ΔE 6.7 · #497E76

Sherwin-Williams

Thermal Spring SW6761

ΔE 6.7 · #3B8C80

Farrow & Ball

Vardo 288

ΔE 7.4 · #427E83

Colorhouse

Dream .05 Dream-05

ΔE 8.5 · #18887C

IKEA

IKEA118 118

ΔE 9 · #317983

Kobra

Green 41

ΔE 11.8 · #009185

Dutch Boy

Grass Green D-6753

ΔE 17.9 · #317455

Light Reflectance & Undertone

Light Reflectance Value (LRV)

18/100

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 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

#31817E

#813134

Analogous

#318157

#31817E

#315C81

Triadic

#31817E

#7F3181

#817F31

Split-Complementary

#31817E

#81315C

#815731

Tetradic

#31817E

#573181

#813134

#5C8131

Monochromatic

#071212

#1C4A48

#31817E

#46B9B5

#7ECECB

Rectangle

#31817E

#313481

#813134

#817F31

Compound

#31817E

#315C81

#813134

#815731

Variations

Lighter

#43B1AE

#76C2BF

#B3D7D6

Darker

#266967

#194948

#0E2B2A

Saturation

#4D6564

#31817F

#199A96

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

4.59:1

vs Black

4.57:1

Deuteranopia

#31817E

#696D80

Original → Simulated

Protanopia

#31817E

#78787E

Original → Simulated

Tritanopia

#31817E

#367F7E

Original → Simulated

Color Psychology

Calm · Restorative

Nero's Green 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

#648D7A

Warm Bulb 2700K

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

#31817E

Daylight 5500K

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

#51929E

Cool Bulb 6500K

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

Pairs With

#E9ECEC

Trim

Matched off-white

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

#F7F8F8

Ceiling

Whisper tint

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

#692F31

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: #31817E;

CSS — background

background-color: #31817E;

CSS Variable

--color-nero's-green: #31817E;

Tailwind v3 — config

colors: { 'nero's-green': '#31817E' }

Tailwind — arbitrary

bg-[#31817E] text-[#31817E]

SCSS

$nero's-green: #31817E;

Similar Colors

Intercoastal Green

#2E7572 · ΔE 4.9

Largo Teal

#23777B · ΔE 5.6

Teal Ocean

#29777B · ΔE 5.8

Tropical Teal

#00898A · ΔE 6.8

Highlands Green

#3B7E6F · ΔE 7.4

Tropical Turquoise

#00706C · ΔE 7.6

Geddy Verdigris

#2E8B7E · ΔE 7.8

Newport Green

#3E7371 · ΔE 8.0

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 #31817E?

#31817E is Nero's Green, a deep green with a cool undertone.

Is #31817E warm or cool?

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

What rooms work best with Nero's Green?

Nero's Green works well in bedrooms, bathrooms, libraries. Designers typically use it for main walls, cabinetry, soft furniture.

What colors pair well with Nero's Green?

Nero's Green 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 Nero's Green?

You can download Nero's 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 Nero's Green?

The hex code is #31817E. In RGB it's 49, 129, 126, and in HSL it's 178°, 45%, 35%.

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