BLUES

Bluey

#375B78

RGB 55, 91, 120 · HSL 207°, 37%, 34% · CMYK 54, 24, 0, 53

Bluey is #375B78 in HEX — rgb(55, 91, 120), hsl(207°, 37%, 34%), cmyk(54%, 24%, 0%, 53%).

Bluey pulls into the rich end of the blues spectrum — HSL 207°, 37%, 34%. The muted saturation makes it quiet but present, 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#375B78

RGB55, 91, 120

HSL207°, 37%, 34%

HSV207°, 54%, 47%

CMYK54, 24, 0, 53

Decimal3627896

CSS RGBrgb(55, 91, 120)

CSS HSLhsl(207, 37%, 34%)

Paint Matches — this color across 16 brands

Dulux

Bluey S36F8

Exact match

Hallman-Lindsay

Happy Tune 648

ΔE 1.2 · #345875

PPG

Chinese Porcelain 1160-6

ΔE 1.7 · #3A5F7D

Valspar

Deep Sea Diving 5001-8C

ΔE 2 · #3B5B75

Dunn-Edwards

Blue Earth DE5853

ΔE 2.3 · #375673

Vista Paint

Happy Tune C-647

ΔE 3 · #315472

Benjamin Moore

New 805

ΔE 3.1 · #365574

Behr

Mood Indigo 570F-6

ΔE 3.3 · #3C6381

Kilz

Harborside RD120-02

ΔE 4.5 · #36637D

Sherwin-Williams

Endless Sea SW9150

ΔE 4.8 · #32586E

IKEA

IKEA122 122

ΔE 5.5 · #3A5170

RAL

Distant Blue 5023

ΔE 8 · #49678D

Farrow & Ball

Stiffkey Blue 281

ΔE 10.3 · #4D5B6A

Kobra

Blue 30

ΔE 11.9 · #195584

Colorhouse

Wool .06 Wool-06

ΔE 12.7 · #485761

Dutch Boy

Ocean Blue D-6743

ΔE 13.3 · #4C6A74

Light Reflectance & Undertone

Light Reflectance Value (LRV)

10/100

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

#375B78

#775337

Analogous

#377774

#375B78

#373A77

Triadic

#375B78

#77375A

#5A7737

Split-Complementary

#375B78

#77373A

#777437

Tetradic

#375B78

#743777

#775337

#3A7737

Monochromatic

#080D11

#1F3242

#375B78

#4F82AB

#81A7C5

Rectangle

#375B78

#533777

#775337

#5A7737

Compound

#375B78

#373A77

#775337

#777437

Variations

Lighter

#4C7DA5

#7A9DBA

#B5C6D3

Darker

#2A4860

#1C3243

#101D28

Saturation

#4D5860

#375A77

#1B5D92

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

7.17:1

AAA

vs Black

2.93:1

Fail

Deuteranopia

#375B78

#475479

Original → Simulated

Protanopia

#375B78

#565675

Original → Simulated

Tritanopia

#375B78

#33605B

Original → Simulated

Color Psychology

Focused · Cooling

Bluey 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

#697175

Warm Bulb 2700K

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

#375B78

Daylight 5500K

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

#567699

Cool Bulb 6500K

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

Pairs With

#E9EBEC

Trim

Matched off-white

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

#F7F7F8

Ceiling

Whisper tint

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

#614733

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: #375B78;

CSS — background

background-color: #375B78;

CSS Variable

--color-bluey: #375B78;

Tailwind v3 — config

colors: { 'bluey': '#375B78' }

Tailwind — arbitrary

bg-[#375B78] text-[#375B78]

SCSS

$bluey: #375B78;

Similar Colors

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#355473 · ΔE 3.5

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#325A7D · ΔE 3.8

Lucerne

#3A647D · ΔE 4.8

Blue Danube

#2D5970 · ΔE 4.9

Indi Go-Go

#445772 · ΔE 5.0

Summer Nights

#34586C · ΔE 5.9

Kensington Blue

#4B5A71 · ΔE 6.9

Bermuda Blue

#185D82 · ΔE 7.1

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 #375B78?

#375B78 is Bluey, a deep blue with a cool undertone.

Is #375B78 warm or cool?

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

What rooms work best with Bluey?

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

What colors pair well with Bluey?

Bluey 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 Bluey?

You can download Bluey 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 Bluey?

The hex code is #375B78. In RGB it's 55, 91, 120, and in HSL it's 207°, 37%, 34%.

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