BLUES

Blue Quarry

#43515E

RGB 67, 81, 94 · HSL 209°, 17%, 32% · CMYK 29, 14, 0, 63

Blue Quarry is #43515E in HEX — rgb(67, 81, 94), hsl(209°, 17%, 32%), cmyk(29%, 14%, 0%, 63%).

Blue Quarry pulls into the rich end of the blues spectrum — HSL 209°, 17%, 32%. The neutral saturation makes it near-neutral and forgiving, and the hue reads cool. In interior projects it shines on bedrooms, bathrooms, home offices — for calm, focused environments. Reads best alongside warm white trim, oak or walnut, brass or matte black hardware.

Color Codes

HEX#43515E

RGB67, 81, 94

HSL209°, 17%, 32%

HSV209°, 29%, 37%

CMYK29, 14, 0, 63

Decimal4411742

CSS RGBrgb(67, 81, 94)

CSS HSLhsl(209, 17%, 32%)

Paint Matches — this color across 16 brands

Dulux

Blue Quarry S37B7

Exact match

Valspar

Fly-by-Night Blue 4009-4

ΔE 1.1 · #414F5B

Dunn-Edwards

Nightfall DE5804

ΔE 1.7 · #43535E

Hallman-Lindsay

Seal Blue historic-seal-blue

ΔE 2.1 · #475663

PPG

Cavalry 1041-7

ΔE 2.2 · #3F4C5A

Vista Paint

Day Spa C-633

ΔE 2.3 · #3E5261

Kilz

Prussian Blue RD100-02

ΔE 2.3 · #444D5A

Behr

Secret Society MQ5-10

ΔE 2.8 · #464E5D

Benjamin Moore

Hale HC-154

ΔE 3 · #444C57

Colorhouse

Wool .06 Wool-06

ΔE 3.1 · #485761

Farrow & Ball

Hague Blue 30

ΔE 3.3 · #3D4E57

Sherwin-Williams

Sea Serpent SW7615

ΔE 3.6 · #3E4B54

RAL

Slate Grey 7015

ΔE 5.7 · #434750

IKEA

IKEA152 152

ΔE 8 · #494F50

Dutch Boy

Seal of Grey VS-9301

ΔE 10.2 · #575757

Kobra

Blue 31

ΔE 10.7 · #334059

Light Reflectance & Undertone

Light Reflectance Value (LRV)

8/100

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 MasstoneBlue UndertoneViolet

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

Color Theory

Complementary

#43515E

#5F5144

Analogous

#445F5F

#43515E

#44445F

Triadic

#43515E

#5F4452

#525F44

Split-Complementary

#43515E

#5F4444

#5F5F44

Tetradic

#43515E

#5F445F

#5F5144

#445F44

Monochromatic

#0B0D0F

#242C33

#43515E

#63798C

#8E9FAF

Rectangle

#43515E

#51445F

#5F5144

#525F44

Compound

#43515E

#44445F

#5F5144

#5F5F44

Variations

Lighter

#617588

#8897A6

#BBC3CA

Darker

#36424D

#242D35

#151A1F

Saturation

#4D5256

#44525F

#225381

Interior Use

Best Rooms

bedrooms, bathrooms, home offices

Best Uses

main walls, ceilings, trim, cabinetry

Pairs With

warm white trim, oak or walnut, brass or matte black hardware

Accessibility (WCAG)

vs White

8.15:1

AAA

vs Black

2.58:1

Fail

Deuteranopia

#43515E

#494E5F

Original → Simulated

Protanopia

#43515E

#4F4F5C

Original → Simulated

Tritanopia

#43515E

#425351

Original → Simulated

Color Psychology

Focused · Cooling

Blue Quarry lowers the temperature of a room — useful in south-facing rooms that overheat visually, and in home offices where you want a clear head. Pair with warm wood and brass to keep it from reading clinical.

SymbolismTrust, depth, stability

PersonalityClear-headed, dependable, contemplative

focustrustcalmofficebedroomdepth

How it looks under different light

#726962

Warm Bulb 2700K

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

#43515E

Daylight 5500K

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

#5F6E86

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.

#574534

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: #43515E;

CSS — background

background-color: #43515E;

CSS Variable

--color-blue-quarry: #43515E;

Tailwind v3 — config

colors: { 'blue-quarry': '#43515E' }

Tailwind — arbitrary

bg-[#43515E] text-[#43515E]

SCSS

$blue-quarry: #43515E;

Similar Colors

In the Midnight Hour

#415663 · ΔE 3.0

Newburyport Blue

#465566 · ΔE 3.0

Hale Navy

#434B56 · ΔE 3.3

Brush Blue

#414F57 · ΔE 3.3

Blue Note

#404B54 · ΔE 3.6

Mysterious

#454B54 · ΔE 4.3

Hudson Bay

#3F5266 · ΔE 4.6

Evening Dove

#515A67 · ΔE 4.6

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 #43515E?

#43515E is Blue Quarry, a deep blue with a cool undertone.

Is #43515E warm or cool?

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

What rooms work best with Blue Quarry?

Blue Quarry works well in bedrooms, bathrooms, home offices. Designers typically use it for main walls, ceilings, trim, cabinetry.

What colors pair well with Blue Quarry?

Blue Quarry pairs naturally with warm white trim, oak or walnut, brass or matte black hardware. Its complementary color is also a strong contrast option for accents.

Where can I download Blue Quarry?

You can download Blue Quarry 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 Blue Quarry?

The hex code is #43515E. In RGB it's 67, 81, 94, and in HSL it's 209°, 17%, 32%.

← All colors