BLUES

Mariner

#42639F

RGB 66, 99, 159 · HSL 219°, 41%, 44% · CMYK 58, 38, 0, 38

Mariner is #42639F in HEX — rgb(66, 99, 159), hsl(219°, 41%, 44%), cmyk(58%, 38%, 0%, 38%).

Mariner pulls into the rich end of the blues spectrum — HSL 219°, 41%, 44%. 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#42639F

RGB66, 99, 159

HSL219°, 41%, 44%

HSV219°, 58%, 62%

CMYK58, 38, 0, 38

Decimal4350879

CSS RGBrgb(66, 99, 159)

CSS HSLhsl(219, 41%, 44%)

Paint Matches — this color across 16 brands

Dulux

Bio Blue S41H7 · SB8E5

ΔE 1.4 · #45619D

Valspar

Deep Space 4008-8C

ΔE 2.6 · #38619B

Benjamin Moore

Mosaic CC-874

ΔE 3.3 · #3963A4

Dunn-Edwards

Starstruck DE5894

ΔE 3.3 · #4664A5

Behr

New Age Blue PPU15-5

ΔE 4.8 · #486EAE

IKEA

IKEA128 128

ΔE 6 · #4A72B0

PPG

Cenote 17-02

ΔE 6.1 · #5072B1

Hallman-Lindsay

Fresh Take 1278

ΔE 6.3 · #505B93

Vista Paint

Capri Isle C-604

ΔE 6.3 · #4E6EB2

Kilz

Azurite RC110-01

ΔE 7.4 · #4E71A6

Sherwin-Williams

Frank Blue SW6967

ΔE 8.7 · #225288

RAL

Sky Blue 5015

ΔE 9.4 · #2271B3

Dutch Boy

Blue Sea VS-9451

ΔE 9.9 · #2D61AD

Kobra

Blue 30

ΔE 11.9 · #195584

Colorhouse

Petal .05 Petal-05

ΔE 14.4 · #1F4992

Farrow & Ball

Pitch Blue 220

ΔE 17.6 · #636E8F

Light Reflectance & Undertone

Light Reflectance Value (LRV)

13/100

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

#42639F

#9E7E42

Analogous

#42909E

#42639F

#50429E

Triadic

#42639F

#9E4262

#629E42

Split-Complementary

#42639F

#9E5042

#909E42

Tetradic

#42639F

#9E4290

#9E7E42

#429E50

Monochromatic

#151F32

#2C4168

#42639F

#6C8AC1

#A2B5D8

Rectangle

#42639F

#7E429E

#9E7E42

#629E42

Compound

#42639F

#50429E

#9E7E42

#909E42

Variations

Lighter

#5E7FBC

#8BA0C7

#BFC9DB

Darker

#334E80

#22355A

#131F35

Saturation

#626C7E

#42629E

#2158BF

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

5.97:1

vs Black

3.52:1

AA Large

Deuteranopia

#42639F

#4662A0

Original → Simulated

Protanopia

#42639F

#5E5E99

Original → Simulated

Tritanopia

#42639F

#376F66

Original → Simulated

Color Psychology

Focused · Cooling

Mariner 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

#717792

Warm Bulb 2700K

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

#42639F

Daylight 5500K

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

#5E7CB7

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.

#81693E

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: #42639F;

CSS — background

background-color: #42639F;

CSS Variable

--color-mariner: #42639F;

Tailwind v3 — config

colors: { 'mariner': '#42639F' }

Tailwind — arbitrary

bg-[#42639F] text-[#42639F]

SCSS

$mariner: #42639F;

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#3862A3 · ΔE 3.4

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#365496 · ΔE 7.6

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#0062A0 · ΔE 8.2

Blue Suede Shoes

#2F5688 · ΔE 8.3

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#0063A6 · ΔE 8.4

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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 #42639F?

#42639F is Mariner, a mid-tone blue with a cool undertone.

Is #42639F warm or cool?

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

What rooms work best with Mariner?

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

What colors pair well with Mariner?

Mariner 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 Mariner?

You can download Mariner 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 Mariner?

The hex code is #42639F. In RGB it's 66, 99, 159, and in HSL it's 219°, 41%, 44%.

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