BLUES

Constellation Blue

#3C4670

RGB 60, 70, 112 · HSL 228°, 30%, 34% · CMYK 46, 37, 0, 56

Constellation Blue is #3C4670 in HEX — rgb(60, 70, 112), hsl(228°, 30%, 34%), cmyk(46%, 37%, 0%, 56%).

Constellation Blue pulls into the rich end of the blues spectrum — HSL 228°, 30%, 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#3C4670

RGB60, 70, 112

HSL228°, 30%, 34%

HSV228°, 46%, 44%

CMYK46, 37, 0, 56

Decimal3950192

CSS RGBrgb(60, 70, 112)

CSS HSLhsl(228, 30%, 34%)

Paint Matches — this color across 16 brands

Behr

Maharaja 620F-7

ΔE 1.7 · #36456F

Dulux

Space Angel S42G8

ΔE 2.2 · #3B4471

PPG

Daring Indigo 1166-7 · 13-25

ΔE 2.3 · #374874

Benjamin Moore

Wizard CC-966

ΔE 2.3 · #41476E

Sherwin-Williams

Valiant Violet SW6818

ΔE 3.4 · #3E4371

Kilz

Indigo RH220

ΔE 4.1 · #314973

Vista Paint

Sailor's Eyes K-1241

ΔE 4.4 · #394778

Valspar

Spirit Blue 4011-9

ΔE 4.7 · #49456F

Hallman-Lindsay

Newport Indigo historic-newport-indigo

ΔE 5.3 · #313D6C

Dunn-Edwards

Nautical DEA139

ΔE 6.8 · #2E4A7D

Dutch Boy

Royal Blue D-6740

ΔE 9.1 · #1D375C

IKEA

IKEA122 122

ΔE 9.8 · #3A5170

RAL

Brillant Blue 5007

ΔE 11.5 · #3E5F8A

Kobra

Blue 31

ΔE 11.5 · #334059

Farrow & Ball

Pitch Blue 220

ΔE 17.7 · #636E8F

Colorhouse

Create .06 Create-06

ΔE 18.2 · #5E3D5A

Light Reflectance & Undertone

Light Reflectance Value (LRV)

7/100

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

#3C4670

#71663D

Analogous

#3D6171

#3C4670

#4C3D71

Triadic

#3C4670

#713D47

#47713D

Split-Complementary

#3C4670

#714C3D

#61713D

Tetradic

#3C4670

#713D61

#71663D

#3D714C

Monochromatic

#090A11

#22283F

#3C4670

#5766A2

#8893BF

Rectangle

#3C4670

#663D71

#71663D

#47713D

Compound

#3C4670

#4C3D71

#71663D

#61713D

Variations

Lighter

#54639C

#808BB4

#B8BDD0

Darker

#30385B

#20263F

#121625

Saturation

#4F525F

#3D4771

#1E358F

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

9.12:1

AAA

vs Black

2.30:1

Fail

Deuteranopia

#3C4670

#384870

Original → Simulated

Protanopia

#3C4670

#44446C

Original → Simulated

Tritanopia

#3C4670

#374E49

Original → Simulated

Color Psychology

Focused · Cooling

Constellation 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

#6C616F

Warm Bulb 2700K

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

#3C4670

Daylight 5500K

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

#5A6693

Cool Bulb 6500K

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

Pairs With

#E9EAEC

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.

#5C5537

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: #3C4670;

CSS — background

background-color: #3C4670;

CSS Variable

--color-constellation-blue: #3C4670;

Tailwind v3 — config

colors: { 'constellation-blue': '#3C4670' }

Tailwind — arbitrary

bg-[#3C4670] text-[#3C4670]

SCSS

$constellation-blue: #3C4670;

Similar Colors

Wizard

#40466D · ΔE 2.2

Blue Grotto

#353963 · ΔE 5.7

Admiral Blue

#2B3762 · ΔE 6.8

Grape Gum

#413D6D · ΔE 7.1

Blueberry Hill

#335183 · ΔE 7.6

Starry Night Blue

#334076 · ΔE 8.3

Bold Blue

#2B3558 · ΔE 8.5

Downpour Blue

#254669 · ΔE 8.6

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 #3C4670?

#3C4670 is Constellation Blue, a deep blue with a cool undertone.

Is #3C4670 warm or cool?

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

What rooms work best with Constellation Blue?

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

What colors pair well with Constellation Blue?

Constellation 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 Constellation Blue?

You can download Constellation 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 Constellation Blue?

The hex code is #3C4670. In RGB it's 60, 70, 112, and in HSL it's 228°, 30%, 34%.

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