BLUES

Classic Blue

#0F4E81

RGB 15, 78, 129 · HSL 207°, 79%, 28% · CMYK 88, 40, 0, 49

Classic Blue is #0F4E81 in HEX — rgb(15, 78, 129), hsl(207°, 79%, 28%), cmyk(88%, 40%, 0%, 49%).

Classic Blue pulls into the deep end of the blues spectrum — HSL 207°, 79%, 28%. The saturated saturation makes it bold and immediate, 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#0F4E81

RGB15, 78, 129

HSL207°, 79%, 28%

HSV207°, 88%, 51%

CMYK88, 40, 0, 49

Decimal1003137

CSS RGBrgb(15, 78, 129)

CSS HSLhsl(207, 79%, 28%)

Paint Matches — this color across 16 brands

Benjamin Moore

Patriot 2064-20

ΔE 2 · #194B7D

Dulux

Dance Studio S36H9

ΔE 2 · #065183

Sherwin-Williams

Blueblood SW6966

ΔE 2.1 · #015086

Vista Paint

Wavy Navy K-1245

ΔE 3.1 · #005488

Behr

Express Blue M500-6

ΔE 3.4 · #225389

Kilz

Navy Dress RH210

ΔE 3.9 · #285489

Kobra

Blue 30

ΔE 4.2 · #195584

RAL

Capri Blue 5019

ΔE 4.7 · #1B5583

PPG

Brilliant Blue 1161-7

ΔE 4.8 · #234E86

Dunn-Edwards

Nautical DEA139

ΔE 5.9 · #2E4A7D

Hallman-Lindsay

Glacier Bay historic-glacier-bay

ΔE 6.6 · #005C94

Dutch Boy

Delft Blue 7447

ΔE 8.8 · #003B67

Valspar

Deep Space 4008-8C

ΔE 9.6 · #38619B

IKEA

IKEA122 122

ΔE 13.6 · #3A5170

Colorhouse

Petal .05 Petal-05

ΔE 15.9 · #1F4992

Farrow & Ball

Pitch Blue 220

ΔE 20.9 · #636E8F

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

#0F4E81

#80420F

Analogous

#0F807A

#0F4E81

#0F1580

Triadic

#0F4E81

#800F4D

#4D800F

Split-Complementary

#0F4E81

#800F15

#807A0F

Tetradic

#0F4E81

#7A0F80

#80420F

#15800F

Monochromatic

#030E17

#07243B

#0F4E81

#1776C4

#3F9CE9

Rectangle

#0F4E81

#420F80

#80420F

#4D800F

Compound

#0F4E81

#0F1580

#80420F

#807A0F

Variations

Lighter

#1775C2

#4798DB

#9BC2E2

Darker

#0A3E69

#052B49

#02192C

Saturation

#364958

#0F4D80

#074E87

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

8.65:1

AAA

vs Black

2.43:1

Fail

Deuteranopia

#0F4E81

#2B4882

Original → Simulated

Protanopia

#0F4E81

#48487C

Original → Simulated

Tritanopia

#0F4E81

#005850

Original → Simulated

Color Psychology

Focused · Cooling

Classic 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

#4B677C

Warm Bulb 2700K

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

#0F4E81

Daylight 5500K

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

#386CA0

Cool Bulb 6500K

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

Pairs With

#E8EBEE

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.

#653914

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: #0F4E81;

CSS — background

background-color: #0F4E81;

CSS Variable

--color-classic-blue: #0F4E81;

Tailwind v3 — config

colors: { 'classic-blue': '#0F4E81' }

Tailwind — arbitrary

bg-[#0F4E81] text-[#0F4E81]

SCSS

$classic-blue: #0F4E81;

Similar Colors

Patriot Blue

#184A7C · ΔE 2.3

Blue Suede Shoes

#2F5688 · ΔE 4.9

California Blue

#005381 · ΔE 5.0

Blueberry Hill

#335183 · ΔE 5.5

Dark Royal Blue

#144B86 · ΔE 6.0

Mistral

#10557D · ΔE 8.6

Blueberry

#1A5E89 · ΔE 9.3

Delphinium

#304C89 · ΔE 9.7

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 #0F4E81?

#0F4E81 is Classic Blue, a deep blue with a cool undertone.

Is #0F4E81 warm or cool?

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

What rooms work best with Classic Blue?

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

What colors pair well with Classic Blue?

Classic 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 Classic Blue?

You can download Classic 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 Classic Blue?

The hex code is #0F4E81. In RGB it's 15, 78, 129, and in HSL it's 207°, 79%, 28%.

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