BLUES

Midnight Shadow

#566373

RGB 86, 99, 115 · HSL 213°, 14%, 39% · CMYK 25, 14, 0, 55

Midnight Shadow is #566373 in HEX — rgb(86, 99, 115), hsl(213°, 14%, 39%), cmyk(25%, 14%, 0%, 55%).

Midnight Shadow pulls into the rich end of the blues spectrum — HSL 213°, 14%, 39%. 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#566373

RGB86, 99, 115

HSL213°, 14%, 39%

HSV213°, 25%, 45%

CMYK25, 14, 0, 55

Decimal5661555

CSS RGBrgb(86, 99, 115)

CSS HSLhsl(213, 14%, 39%)

Paint Matches — this color across 16 brands

PPG

Blue Zephyr 1042-6

ΔE 1.6 · #5B6676

Dulux

Speedwell S40B6

ΔE 1.6 · #5A6372

Valspar

Mountain River 4005-6C

ΔE 1.6 · #516273

Benjamin Moore

Andes CSP-600

ΔE 2 · #596572

Dunn-Edwards

Outer Space DE5824

ΔE 2.7 · #53626E

Behr

English Channel PPU14-19

ΔE 2.9 · #4E6174

Farrow & Ball

Stiffkey Blue 281

ΔE 3.5 · #4D5B6A

Vista Paint

Blazing Sky K-801

ΔE 4.2 · #495D6B

Sherwin-Williams

Needlepoint Navy SW0032

ΔE 4.3 · #546670

Hallman-Lindsay

Deep Lagoon 507

ΔE 5.1 · #5E6C76

IKEA

IKEA156 156

ΔE 6.2 · #676973

Kilz

Stormy Sea RC140-02

ΔE 6.5 · #4C617B

Colorhouse

Wool .06 Wool-06

ΔE 6.5 · #485761

Dutch Boy

Ocean Blue D-6743

ΔE 7.5 · #4C6A74

RAL

Pearl Black Berry 4012

ΔE 9.3 · #6C6881

Kobra

Blue 31

ΔE 15.9 · #334059

Light Reflectance & Undertone

Light Reflectance Value (LRV)

12/100

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 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

#566373

#716556

Analogous

#567071

#566373

#575671

Triadic

#566373

#715662

#627156

Split-Complementary

#566373

#715756

#707156

Tetradic

#566373

#715670

#716556

#567157

Monochromatic

#14171A

#353C46

#566373

#79889A

#A5AFBB

Rectangle

#566373

#655671

#716556

#627156

Compound

#566373

#575671

#716556

#707156

Variations

Lighter

#718194

#97A1AD

#C3C8CE

Darker

#444E5B

#2E363F

#1B1F25

Saturation

#5F6368

#566271

#2B5E9C

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

6.13:1

vs Black

3.43:1

AA Large

Deuteranopia

#566373

#5B6074

Original → Simulated

Protanopia

#566373

#616171

Original → Simulated

Tritanopia

#566373

#556663

Original → Simulated

Color Psychology

Focused · Cooling

Midnight Shadow 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

#807771

Warm Bulb 2700K

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

#566373

Daylight 5500K

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

#6D7C96

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.

#6A573F

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: #566373;

CSS — background

background-color: #566373;

CSS Variable

--color-midnight-shadow: #566373;

Tailwind v3 — config

colors: { 'midnight-shadow': '#566373' }

Tailwind — arbitrary

bg-[#566373] text-[#566373]

SCSS

$midnight-shadow: #566373;

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#586471 · ΔE 1.9

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#515A67 · ΔE 4.1

Van Deusen Blue

#485B6E · ΔE 4.6

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#4E646F · ΔE 4.7

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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 #566373?

#566373 is Midnight Shadow, a deep blue with a cool undertone.

Is #566373 warm or cool?

Midnight Shadow reads cool, which influences how it interacts with surrounding tones and natural light.

What rooms work best with Midnight Shadow?

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

What colors pair well with Midnight Shadow?

Midnight Shadow 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 Midnight Shadow?

You can download Midnight Shadow 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 Midnight Shadow?

The hex code is #566373. In RGB it's 86, 99, 115, and in HSL it's 213°, 14%, 39%.

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