BLUES

Captains Blue

#557088

RGB 85, 112, 136 · HSL 208°, 23%, 43% · CMYK 38, 18, 0, 47

Captains Blue is #557088 in HEX — rgb(85, 112, 136), hsl(208°, 23%, 43%), cmyk(38%, 18%, 0%, 47%).

Captains Blue pulls into the rich end of the blues spectrum — HSL 208°, 23%, 43%. 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#557088

RGB85, 112, 136

HSL208°, 23%, 43%

HSV208°, 38%, 53%

CMYK38, 18, 0, 47

Decimal5599368

CSS RGBrgb(85, 112, 136)

CSS HSLhsl(208, 23%, 43%)

Paint Matches — this color across 16 brands

Dulux

Electronic S37D6

ΔE 0.8 · #556F88

Behr

Arrowhead Lake PPU14-1

ΔE 1 · #57728B

Hallman-Lindsay

Blue Depths 626

ΔE 1.8 · #5A7187

Vista Paint

Blue Depths C-625

ΔE 1.9 · #596F85

Sherwin-Williams

Denim SW6523

ΔE 2.1 · #506B84

Benjamin Moore

Bedford 1679

ΔE 3.2 · #4F748D

PPG

Smoke Blue 1156-5

ΔE 3.6 · #53778F

Valspar

Veranda Blue 4004-6B

ΔE 3.8 · #607992

Kilz

Beach View RC270-02

ΔE 4.2 · #4B748D

Dunn-Edwards

Periscope DE5873

ΔE 4.4 · #52677B

RAL

Pigeon Blue 5014

ΔE 6 · #606E8C

Farrow & Ball

Pitch Blue 220

ΔE 8.1 · #636E8F

IKEA

IKEA154 154

ΔE 8.3 · #667480

Dutch Boy

Ocean Blue D-6743

ΔE 9.2 · #4C6A74

Colorhouse

Wool .06 Wool-06

ΔE 13.2 · #485761

Kobra

Grey 42

ΔE 17.2 · #889099

Light Reflectance & Undertone

Light Reflectance Value (LRV)

15/100

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

#557088

#876C54

Analogous

#548785

#557088

#545687

Triadic

#557088

#87546F

#6F8754

Split-Complementary

#557088

#875456

#878554

Tetradic

#557088

#855487

#876C54

#568754

Monochromatic

#1A2229

#374858

#557088

#7B96AD

#AABBCA

Rectangle

#557088

#6C5487

#876C54

#6F8754

Compound

#557088

#545687

#876C54

#878554

Variations

Lighter

#708DA5

#97A9B9

#C4CDD4

Darker

#43596D

#2D3D4C

#1A242C

Saturation

#666E75

#546F87

#2A72B1

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

5.17:1

vs Black

4.06:1

AA Large

Deuteranopia

#557088

#616A89

Original → Simulated

Protanopia

#557088

#6C6C85

Original → Simulated

Tritanopia

#557088

#537470

Original → Simulated

Color Psychology

Focused · Cooling

Captains 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

#7F8181

Warm Bulb 2700K

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

#557088

Daylight 5500K

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

#6C86A5

Cool Bulb 6500K

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

Pairs With

#EAEBEB

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.

#755C46

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: #557088;

CSS — background

background-color: #557088;

CSS Variable

--color-captains-blue: #557088;

Tailwind v3 — config

colors: { 'captains-blue': '#557088' }

Tailwind — arbitrary

bg-[#557088] text-[#557088]

SCSS

$captains-blue: #557088;

Similar Colors

Bedford Blue

#4E738C · ΔE 3.1

Georgian Bay

#537284 · ΔE 4.1

Blue Heron

#5C6A85 · ΔE 5.1

Schooner

#527687 · ΔE 5.8

Lucerne

#3A647D · ΔE 7.0

Santa Monica Blue

#3A6E8C · ΔE 7.4

Philipsburg Blue

#627885 · ΔE 7.4

Thousand Oceans

#5E7480 · ΔE 7.4

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 #557088?

#557088 is Captains Blue, a mid-tone blue with a cool undertone.

Is #557088 warm or cool?

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

What rooms work best with Captains Blue?

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

What colors pair well with Captains Blue?

Captains 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 Captains Blue?

You can download Captains 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 Captains Blue?

The hex code is #557088. In RGB it's 85, 112, 136, and in HSL it's 208°, 23%, 43%.

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