BLUES

Blue Expanse

#253F74

RGB 37, 63, 116 · HSL 220°, 52%, 30% · CMYK 68, 46, 0, 55

Blue Expanse is #253F74 in HEX — rgb(37, 63, 116), hsl(220°, 52%, 30%), cmyk(68%, 46%, 0%, 55%).

Blue Expanse pulls into the rich end of the blues spectrum — HSL 220°, 52%, 30%. The balanced saturation makes it confident without overpowering, 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#253F74

RGB37, 63, 116

HSL220°, 52%, 30%

HSV220°, 68%, 45%

CMYK68, 46, 0, 55

Decimal2441076

CSS RGBrgb(37, 63, 116)

CSS HSLhsl(220, 52%, 30%)

Paint Matches — this color across 16 brands

Dulux

Blue Expanse S41H8

ΔE 2.7 · #254274

Benjamin Moore

Starry 2067-20

ΔE 3.5 · #344177

Behr

Elegant Navy M530-7

ΔE 3.8 · #2D437D

RAL

Traffic Blue 5017

ΔE 4.6 · #063971

Dunn-Edwards

Indigo Night DEA138

ΔE 4.7 · #324680

Hallman-Lindsay

Newport Indigo historic-newport-indigo

ΔE 4.7 · #313D6C

Vista Paint

Sailor's Eyes K-1241

ΔE 5.4 · #394778

Sherwin-Williams

Honorable Blue SW6811

ΔE 5.9 · #164576

PPG

Brilliant Blue 1161-7

ΔE 7 · #234E86

Dutch Boy

Delft Blue 7447

ΔE 8.6 · #003B67

Kilz

Indigo RH220

ΔE 8.8 · #314973

Valspar

Homecoming Blue 4009-9

ΔE 8.9 · #484E83

Kobra

Blue 30

ΔE 12.7 · #195584

Colorhouse

Petal .05 Petal-05

ΔE 12.7 · #1F4992

IKEA

IKEA122 122

ΔE 16.8 · #3A5170

Farrow & Ball

Pitch Blue 220

ΔE 24.4 · #636E8F

Light Reflectance & Undertone

Light Reflectance Value (LRV)

5/100

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

#253F74

#745A25

Analogous

#256774

#253F74

#322574

Triadic

#253F74

#74253F

#3F7425

Split-Complementary

#253F74

#743225

#677425

Tetradic

#253F74

#742567

#745A25

#257432

Monochromatic

#060B13

#12203A

#253F74

#375FAE

#6487CE

Rectangle

#253F74

#5A2574

#745A25

#3F7425

Compound

#253F74

#322574

#745A25

#677425

Variations

Lighter

#365DAB

#6584C3

#AAB9D7

Darker

#1C325F

#122242

#0A1427

Saturation

#414958

#253F74

#123987

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

10.28:1

AAA

vs Black

2.04:1

Fail

Deuteranopia

#253F74

#243F74

Original → Simulated

Protanopia

#253F74

#3B3B6F

Original → Simulated

Tritanopia

#253F74

#194A43

Original → Simulated

Color Psychology

Focused · Cooling

Blue Expanse 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

#5B5C72

Warm Bulb 2700K

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

#253F74

Daylight 5500K

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

#486196

Cool Bulb 6500K

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

Pairs With

#E9EAED

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.

#5E4B24

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: #253F74;

CSS — background

background-color: #253F74;

CSS Variable

--color-blue-expanse: #253F74;

Tailwind v3 — config

colors: { 'blue-expanse': '#253F74' }

Tailwind — arbitrary

bg-[#253F74] text-[#253F74]

SCSS

$blue-expanse: #253F74;

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#334076 · ΔE 3.4

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#233872 · ΔE 5.1

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#3F457D · ΔE 6.5

Dark Royal Blue

#144B86 · ΔE 7.0

Delphinium

#304C89 · ΔE 7.0

Admiral Blue

#2B3762 · ΔE 7.2

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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 #253F74?

#253F74 is Blue Expanse, a deep blue with a cool undertone.

Is #253F74 warm or cool?

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

What rooms work best with Blue Expanse?

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

What colors pair well with Blue Expanse?

Blue Expanse 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 Expanse?

You can download Blue Expanse 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 Expanse?

The hex code is #253F74. In RGB it's 37, 63, 116, and in HSL it's 220°, 52%, 30%.

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