GREYS

Bournonite Green

#637A72

RGB 99, 122, 114 · HSL 159°, 10%, 43% · CMYK 19, 0, 7, 52

Bournonite Green is #637A72 in HEX — rgb(99, 122, 114), hsl(159°, 10%, 43%), cmyk(19%, 0%, 7%, 52%).

Bournonite Green pulls into the rich end of the greys spectrum — HSL 159°, 10%, 43%. The neutral saturation makes it near-neutral and forgiving, and the hue reads cool. In interior projects it shines on walls, soft furniture, hard surfaces — as the project's quiet backbone. Reads best alongside white trim, natural wood, brass, soft black accents.

Color Codes

HEX#637A72

RGB99, 122, 114

HSL159°, 10%, 43%

HSV159°, 19%, 48%

CMYK19, 0, 7, 52

Decimal6519410

CSS RGBrgb(99, 122, 114)

CSS HSLhsl(159, 10%, 43%)

Paint Matches — this color across 16 brands

Dulux

Stockleaf S26A6

ΔE 1.2 · #647B71

Hallman-Lindsay

Earthen Cheer 465

ΔE 1.5 · #667971

PPG

Salal Leaves 1137-6

ΔE 1.6 · #637D74

Vista Paint

Earthen Cheer C-464

ΔE 2.3 · #65776D

Behr

Cameroon Green PPU12-17

ΔE 2.5 · #60746D

Benjamin Moore

Silver AC-21

ΔE 3.2 · #5B726A

Sherwin-Williams

Teal Stencil SW0018

ΔE 3.5 · #627F7B

Dunn-Edwards

Dark Lagoon DEC788

ΔE 4.4 · #6A7F7D

Valspar

Liquid Jade 5003-6B

ΔE 4.6 · #62817E

Colorhouse

Wool .05 Wool-05

ΔE 5 · #587675

Farrow & Ball

Green Smoke 47

ΔE 6 · #737C70

Kilz

Culinary Herbs RG280-01

ΔE 6.4 · #5A6C5F

RAL

Mouse Grey 7005

ΔE 7.8 · #646B63

IKEA

IKEA116 116

ΔE 8.1 · #5E7A65

Dutch Boy

Ashton Grey VS-9303

ΔE 11.3 · #66665A

Kobra

Grey 42

ΔE 15.5 · #889099

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

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

#637A72

#79636A

Analogous

#637966

#637A72

#637579

Triadic

#637A72

#716379

#797163

Split-Complementary

#637A72

#796375

#796663

Tetradic

#637A72

#666379

#79636A

#757963

Monochromatic

#1E2422

#404F4A

#637A72

#899F97

#B3C1BC

Rectangle

#637A72

#636A79

#79636A

#797163

Compound

#637A72

#637579

#79636A

#796663

Variations

Lighter

#7F968E

#A0AFAA

#C9D0CD

Darker

#4F615A

#36433E

#1F2724

Saturation

#6A716F

#637971

#31AA80

Interior Use

Best Rooms

living rooms, bedrooms, bathrooms

Best Uses

walls, soft furniture, hard surfaces

Pairs With

white trim, natural wood, brass, soft black accents

Accessibility (WCAG)

vs White

4.61:1

vs Black

4.56:1

Deuteranopia

#637A72

#727273

Original → Simulated

Protanopia

#637A72

#767673

Original → Simulated

Tritanopia

#637A72

#657878

Original → Simulated

Color Psychology

Quiet · Versatile

Bournonite 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

#8A8871

Warm Bulb 2700K

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

#637A72

Daylight 5500K

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

#778D95

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.

#754656

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: #637A72;

CSS — background

background-color: #637A72;

CSS Variable

--color-bournonite-green: #637A72;

Tailwind v3 — config

colors: { 'bournonite-green': '#637A72' }

Tailwind — arbitrary

bg-[#637A72] text-[#637A72]

SCSS

$bournonite-green: #637A72;

Similar Colors

Jack Pine

#5A7169 · ΔE 3.6

Caribbean Teal

#627C7A · ΔE 3.7

Verdigris

#55756C · ΔE 4.3

Caldwell Green

#627067 · ΔE 4.8

Cedar Mountains

#71887F · ΔE 5.5

Porch Swing

#707C79 · ΔE 5.6

Enchanted Forest

#606E63 · ΔE 5.7

Cushing Green

#687666 · ΔE 5.8

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 #637A72?

#637A72 is Bournonite Green, a mid-tone grey with a cool undertone.

Is #637A72 warm or cool?

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

What rooms work best with Bournonite Green?

Bournonite Green works well in living rooms, bedrooms, bathrooms. Designers typically use it for walls, soft furniture, hard surfaces.

What colors pair well with Bournonite Green?

Bournonite Green pairs naturally with white trim, natural wood, brass, soft black accents. Its complementary color is also a strong contrast option for accents.

Where can I download Bournonite Green?

You can download Bournonite 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 Bournonite Green?

The hex code is #637A72. In RGB it's 99, 122, 114, and in HSL it's 159°, 10%, 43%.

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