BLUES

Dark Blue

#315B7D

RGB 49, 91, 125 · HSL 207°, 44%, 34% · CMYK 61, 27, 0, 51

Dark Blue is #315B7D in HEX — rgb(49, 91, 125), hsl(207°, 44%, 34%), cmyk(61%, 27%, 0%, 51%).

Dark Blue pulls into the rich end of the blues spectrum — HSL 207°, 44%, 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#315B7D

RGB49, 91, 125

HSL207°, 44%, 34%

HSV207°, 61%, 49%

CMYK61, 27, 0, 51

Decimal3234685

CSS RGBrgb(49, 91, 125)

CSS HSLhsl(207, 44%, 34%)

Paint Matches — this color across 16 brands

Benjamin Moore

Prussian CW-625

ΔE 0.9 · #335B7E

Dulux

Pelagic S36F7

ΔE 2 · #345F83

Hallman-Lindsay

Queen Of The Night 655

ΔE 2.9 · #295776

PPG

Chinese Porcelain 1160-6

ΔE 3.2 · #3A5F7D

Vista Paint

Queen of the Night C-654

ΔE 3.5 · #265574

Behr

Superior Blue S490-7

ΔE 4 · #255B83

Dunn-Edwards

Blue Earth DE5853

ΔE 4.1 · #375673

Kilz

Thunder Night RC100-01

ΔE 4.6 · #3A5578

Valspar

Egyptian Blue 4011-7

ΔE 5.1 · #42658A

Sherwin-Williams

Regatta SW6517

ΔE 6 · #215772

IKEA

IKEA122 122

ΔE 6.1 · #3A5170

RAL

Brillant Blue 5007

ΔE 6.8 · #3E5F8A

Kobra

Blue 30

ΔE 8.8 · #195584

Farrow & Ball

Pitch Blue 220

ΔE 12.9 · #636E8F

Dutch Boy

Delft Blue 7447

ΔE 15.7 · #003B67

Colorhouse

Wool .06 Wool-06

ΔE 15.9 · #485761

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

#315B7D

#7D5331

Analogous

#317D79

#315B7D

#31347D

Triadic

#315B7D

#7D315B

#5B7D31

Split-Complementary

#315B7D

#7D3134

#7D7931

Tetradic

#315B7D

#79317D

#7D5331

#347D31

Monochromatic

#070D12

#1B3346

#315B7D

#4682B4

#7BA7CC

Rectangle

#315B7D

#53317D

#7D5331

#5B7D31

Compound

#315B7D

#31347D

#7D5331

#7D7931

Variations

Lighter

#437EAD

#749EC0

#B2C6D6

Darker

#254965

#193247

#0E1D2A

Saturation

#4B5862

#315B7D

#185D95

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

7.18:1

AAA

vs Black

2.92:1

Fail

Deuteranopia

#315B7D

#44547E

Original → Simulated

Protanopia

#315B7D

#565679

Original → Simulated

Tritanopia

#315B7D

#2C615C

Original → Simulated

Color Psychology

Focused · Cooling

Dark 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

#647179

Warm Bulb 2700K

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

#315B7D

Daylight 5500K

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

#51769D

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.

#65472E

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: #315B7D;

CSS — background

background-color: #315B7D;

CSS Variable

--color-dark-blue: #315B7D;

Tailwind v3 — config

colors: { 'dark-blue': '#315B7D' }

Tailwind — arbitrary

bg-[#315B7D] text-[#315B7D]

SCSS

$dark-blue: #315B7D;

Similar Colors

Prussian Blue

#325A7D · ΔE 1.0

New York State of Mind

#355473 · ΔE 3.9

Bermuda Blue

#185D82 · ΔE 4.7

Mistral

#10557D · ΔE 5.8

Caribbean Azure

#00567C · ΔE 6.1

Blueberry

#1A5E89 · ΔE 6.4

Bellbottom Blues

#386B8C · ΔE 6.7

Lucerne

#3A647D · ΔE 6.9

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 #315B7D?

#315B7D is Dark Blue, a deep blue with a cool undertone.

Is #315B7D warm or cool?

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

What rooms work best with Dark Blue?

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

What colors pair well with Dark Blue?

Dark 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 Dark Blue?

You can download Dark 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 Dark Blue?

The hex code is #315B7D. In RGB it's 49, 91, 125, and in HSL it's 207°, 44%, 34%.

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