BLUES

Deep Twilight Blue

#375F71

RGB 55, 95, 113 · HSL 199°, 35%, 33% · CMYK 51, 16, 0, 56

Deep Twilight Blue is #375F71 in HEX — rgb(55, 95, 113), hsl(199°, 35%, 33%), cmyk(51%, 16%, 0%, 56%).

Deep Twilight Blue pulls into the rich end of the blues spectrum — HSL 199°, 35%, 33%. 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#375F71

RGB55, 95, 113

HSL199°, 35%, 33%

HSV199°, 51%, 44%

CMYK51, 16, 0, 56

Decimal3628913

CSS RGBrgb(55, 95, 113)

CSS HSLhsl(199, 35%, 33%)

Paint Matches — this color across 16 brands

Behr

Bermudan Blue PPU13-18

ΔE 1.7 · #376171

Dunn-Edwards

Atlantis DE5790

ΔE 1.9 · #336172

PPG

Brigade 1152-6

ΔE 2.7 · #365D73

Benjamin Moore

Summer 777

ΔE 3 · #35596D

Valspar

Azure Jazz 4011-6

ΔE 3.2 · #386178

Dulux

Eclipse Blue S36B6

ΔE 3.7 · #456274

Sherwin-Williams

Endless Sea SW9150

ΔE 3.9 · #32586E

Kilz

Wild River RE100-02

ΔE 4.1 · #3D6775

RAL

Pearl Gentian Blue 5025

ΔE 4.5 · #2A6478

Vista Paint

Blue Suede Shoes K-153

ΔE 4.6 · #40677E

Hallman-Lindsay

Saxon Blue historic-saxon-blue

ΔE 6.3 · #435965

Dutch Boy

Ocean Blue D-6743

ΔE 7.2 · #4C6A74

Farrow & Ball

Stiffkey Blue 281

ΔE 8.2 · #4D5B6A

Colorhouse

Wool .06 Wool-06

ΔE 9 · #485761

IKEA

IKEA097 97

ΔE 11.4 · #006673

Kobra

Blue 31

ΔE 15.6 · #334059

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

#375F71

#724937

Analogous

#377267

#375F71

#374172

Triadic

#375F71

#72375F

#5F7237

Split-Complementary

#375F71

#723741

#726737

Tetradic

#375F71

#673772

#724937

#417237

Monochromatic

#080E11

#1E343E

#375F71

#508AA5

#80ADC2

Rectangle

#375F71

#493772

#724937

#5F7237

Compound

#375F71

#374172

#724937

#726737

Variations

Lighter

#4D86A0

#7AA4B7

#B5C9D2

Darker

#2B4C5C

#1C3540

#101F26

Saturation

#4B575D

#375F72

#1B698D

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

6.91:1

vs Black

3.04:1

AA Large

Deuteranopia

#375F71

#4D5672

Original → Simulated

Protanopia

#375F71

#5A5A6F

Original → Simulated

Tritanopia

#375F71

#36625E

Original → Simulated

Color Psychology

Focused · Cooling

Deep Twilight Blue 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

#697470

Warm Bulb 2700K

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

#375F71

Daylight 5500K

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

#567994

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.

#5D4032

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: #375F71;

CSS — background

background-color: #375F71;

CSS Variable

--color-deep-twilight-blue: #375F71;

Tailwind v3 — config

colors: { 'deep-twilight-blue': '#375F71' }

Tailwind — arbitrary

bg-[#375F71] text-[#375F71]

SCSS

$deep-twilight-blue: #375F71;

Similar Colors

Summer Nights

#34586C · ΔE 3.3

Blue Danube

#2D5970 · ΔE 4.1

Bainbridge Blue

#33677B · ΔE 4.2

Lucerne

#3A647D · ΔE 4.8

Bermuda Turquoise

#285E6B · ΔE 5.3

Coat of Arms

#3C6C7A · ΔE 6.1

Stained Glass

#44646D · ΔE 6.2

Slate Teal

#18546A · ΔE 6.6

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 #375F71?

#375F71 is Deep Twilight Blue, a deep blue with a cool undertone.

Is #375F71 warm or cool?

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

What rooms work best with Deep Twilight Blue?

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

What colors pair well with Deep Twilight Blue?

Deep Twilight Blue 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 Deep Twilight Blue?

You can download Deep Twilight 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 Deep Twilight Blue?

The hex code is #375F71. In RGB it's 55, 95, 113, and in HSL it's 199°, 35%, 33%.

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