GREENS

Oil Blue

#678F8A

RGB 103, 143, 138 · HSL 173°, 16%, 48% · CMYK 28, 0, 3, 44

Oil Blue is #678F8A in HEX — rgb(103, 143, 138), hsl(173°, 16%, 48%), cmyk(28%, 0%, 3%, 44%).

Oil Blue pulls into the mid-tone end of the greens spectrum — HSL 173°, 16%, 48%. The neutral saturation makes it near-neutral and forgiving, 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#678F8A

RGB103, 143, 138

HSL173°, 16%, 48%

HSV173°, 28%, 56%

CMYK28, 0, 3, 44

Decimal6786954

CSS RGBrgb(103, 143, 138)

CSS HSLhsl(173, 16%, 48%)

Paint Matches — this color across 16 brands

Dulux

Ebbing Tide S28B5

ΔE 1.3 · #688D89

Dunn-Edwards

Aspen Hush DE5746

ΔE 1.7 · #6A8D88

Behr

Nature Retreat 730F-5

ΔE 2 · #6D948E

Benjamin Moore

Waterbury HC-136

ΔE 3.2 · #6D9288

Kilz

Green Cast RF290-01

ΔE 3.5 · #689091

Sherwin-Williams

Peacock Plume SW0020

ΔE 4 · #739694

Valspar

Lost Atlantis 5002-6B

ΔE 4.1 · #61898A

PPG

Wright Egyptian Blue FLLW742

ΔE 4.2 · #6D9185

Vista Paint

Teal Tease K-218

ΔE 4.7 · #6B9597

Hallman-Lindsay

Mountain Meadow 703

ΔE 5.5 · #66887B

IKEA

IKEA082 82

ΔE 5.9 · #729E9C

RAL

Pastel Blue 5024

ΔE 7.7 · #5D9B9B

Colorhouse

Wool .05 Wool-05

ΔE 9.9 · #587675

Farrow & Ball

Stone Blue 86

ΔE 10.5 · #7997A1

Kobra

Grey 42

ΔE 14.7 · #889099

Dutch Boy

Natural Gray VS-9332

ΔE 15 · #878787

Light Reflectance & Undertone

Light Reflectance Value (LRV)

24/100

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

#678F8A

#8E676B

Analogous

#678E76

#678F8A

#677F8E

Triadic

#678F8A

#89678E

#8E8967

Split-Complementary

#678F8A

#8E677F

#8E7667

Tetradic

#678F8A

#76678E

#8E676B

#7F8E67

Monochromatic

#273534

#47625E

#678F8A

#92B0AC

#BED0CE

Rectangle

#678F8A

#676B8E

#8E676B

#8E8967

Compound

#678F8A

#677F8E

#8E676B

#8E7667

Variations

Lighter

#84A6A2

#A5BAB8

#CBD6D5

Darker

#51726F

#374F4C

#202E2D

Saturation

#75807F

#678E89

#33C1B1

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

3.58:1

AA Large

vs Black

5.87:1

Deuteranopia

#678F8A

#81838B

Original → Simulated

Protanopia

#678F8A

#89898B

Original → Simulated

Tritanopia

#678F8A

#698E8D

Original → Simulated

Color Psychology

Calm · Restorative

Oil Blue 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

#8D9883

Warm Bulb 2700K

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

#678F8A

Daylight 5500K

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

#7A9DA7

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.

#824E54

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: #678F8A;

CSS — background

background-color: #678F8A;

CSS Variable

--color-oil-blue: #678F8A;

Tailwind v3 — config

colors: { 'oil-blue': '#678F8A' }

Tailwind — arbitrary

bg-[#678F8A] text-[#678F8A]

SCSS

$oil-blue: #678F8A;

Similar Colors

Waterbury Green

#6C9187 · ΔE 3.1

Avalon

#6F8F8E · ΔE 3.8

Mountain Laurel

#748E88 · ΔE 4.8

Mayo Teal

#558787 · ΔE 5.3

Azure Water

#689B99 · ΔE 5.4

Spotswood Teal

#6E9486 · ΔE 5.4

Antiqued Aqua

#759F9A · ΔE 6.0

Cedar Mountains

#71887F · ΔE 6.3

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 #678F8A?

#678F8A is Oil Blue, a mid-tone green with a cool undertone.

Is #678F8A warm or cool?

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

What rooms work best with Oil Blue?

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

What colors pair well with Oil Blue?

Oil Blue 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 Oil Blue?

You can download Oil Blue 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 Oil Blue?

The hex code is #678F8A. In RGB it's 103, 143, 138, and in HSL it's 173°, 16%, 48%.

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