BLUES

Demon Blue

#45538D

RGB 69, 83, 141 · HSL 228°, 34%, 41% · CMYK 51, 41, 0, 45

Demon Blue is #45538D in HEX — rgb(69, 83, 141), hsl(228°, 34%, 41%), cmyk(51%, 41%, 0%, 45%).

Demon Blue pulls into the rich end of the blues spectrum — HSL 228°, 34%, 41%. 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#45538D

RGB69, 83, 141

HSL228°, 34%, 41%

HSV228°, 51%, 55%

CMYK51, 41, 0, 45

Decimal4543373

CSS RGBrgb(69, 83, 141)

CSS HSLhsl(228, 34%, 41%)

Paint Matches — this color across 16 brands

Behr

Blue Blood S560-6

ΔE 0.8 · #45548D

Benjamin Moore

Southern 819

ΔE 2.2 · #42558D

Dunn-Edwards

Dive In DE5895

ΔE 3 · #3C4D85

Vista Paint

Fresh Take C-1277

ΔE 3.3 · #515992

Hallman-Lindsay

Fresh Take 1278

ΔE 3.8 · #505B93

Valspar

Homecoming Blue 4009-9

ΔE 3.9 · #484E83

Kilz

Sapphire Sequin RB120-02

ΔE 4 · #4B568A

Sherwin-Williams

Morning Glory SW6971

ΔE 4.7 · #3C4C80

Dulux

Persian Plush S42G7

ΔE 5.7 · #575D93

PPG

Crushed Velvet 1245-7

ΔE 6.1 · #445397

Colorhouse

Petal .05 Petal-05

ΔE 11.5 · #1F4992

RAL

Brillant Blue 5007

ΔE 12.6 · #3E5F8A

Dutch Boy

Blue Sea VS-9451

ΔE 12.8 · #2D61AD

Kobra

Blue 30

ΔE 13.3 · #195584

IKEA

IKEA128 128

ΔE 13.3 · #4A72B0

Farrow & Ball

Pitch Blue 220

ΔE 19.3 · #636E8F

Light Reflectance & Undertone

Light Reflectance Value (LRV)

9/100

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

#45538D

#8C7E45

Analogous

#45778C

#45538D

#5A458C

Triadic

#45538D

#8C4553

#538C45

Split-Complementary

#45538D

#8C5A45

#778C45

Tetradic

#45538D

#8C4577

#8C7E45

#458C5A

Monochromatic

#131626

#2C3559

#45538D

#6978B5

#9CA6CE

Rectangle

#45538D

#7E458C

#8C7E45

#538C45

Compound

#45538D

#5A458C

#8C7E45

#778C45

Variations

Lighter

#5E6EB0

#8B95BF

#BEC3D7

Darker

#364271

#242D4F

#141A2F

Saturation

#5E6273

#45538C

#233FAF

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

7.30:1

AAA

vs Black

2.87:1

Fail

Deuteranopia

#45538D

#3E568D

Original → Simulated

Protanopia

#45538D

#515187

Original → Simulated

Tritanopia

#45538D

#3D5F57

Original → Simulated

Color Psychology

Focused · Cooling

Demon 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

#736B85

Warm Bulb 2700K

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

#45538D

Daylight 5500K

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

#6070A9

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.

#73683F

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: #45538D;

CSS — background

background-color: #45538D;

CSS Variable

--color-demon-blue: #45538D;

Tailwind v3 — config

colors: { 'demon-blue': '#45538D' }

Tailwind — arbitrary

bg-[#45538D] text-[#45538D]

SCSS

$demon-blue: #45538D;

Similar Colors

Southern Belle

#41548C · ΔE 2.0

Delphinium

#304C89 · ΔE 5.1

Scandinavian Blue

#4E4E8C · ΔE 5.3

Twilight Blue

#365496 · ΔE 5.7

Bistro Blue

#53588A · ΔE 6.0

Basic Blue

#3F457D · ΔE 6.0

Blueberry Hill

#335183 · ΔE 7.2

Starry Night Blue

#334076 · ΔE 8.2

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 #45538D?

#45538D is Demon Blue, a mid-tone blue with a cool undertone.

Is #45538D warm or cool?

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

What rooms work best with Demon Blue?

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

What colors pair well with Demon Blue?

Demon 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 Demon Blue?

You can download Demon 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 Demon Blue?

The hex code is #45538D. In RGB it's 69, 83, 141, and in HSL it's 228°, 34%, 41%.

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