BLUES

Astronaut Blue

#214559

RGB 33, 69, 89 · HSL 201°, 46%, 24% · CMYK 63, 22, 0, 65

Astronaut Blue is #214559 in HEX — rgb(33, 69, 89), hsl(201°, 46%, 24%), cmyk(63%, 22%, 0%, 65%).

Astronaut Blue pulls into the deep end of the blues spectrum — HSL 201°, 46%, 24%. The balanced saturation makes it confident without overpowering, 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#214559
RGB33, 69, 89
HSL201°, 46%, 24%
HSV201°, 63%, 35%
CMYK63, 22, 0, 65
Decimal2180441
CSS RGBrgb(33, 69, 89)
CSS HSLhsl(201, 46%, 24%)

Paint Matches — this color across 16 brands

Dulux

Capital Blue S34C9

ΔE 1.9 · #194356

Benjamin Moore

Twilight 2058-10

ΔE 2.1 · #264556

Vista Paint

Night Edition K-184

ΔE 2.2 · #1B485D

Dunn-Edwards

Deep Ocean DEA135

ΔE 2.8 · #2A4B5F

Behr

New Navy Blue BXC-26

ΔE 3 · #264156

Sherwin-Williams

Salty Dog SW9177

ΔE 4.2 · #234058

PPG

Plymouth Blue 13-27

ΔE 5.5 · #295266

Valspar

Boisterous Blue 4009-6

ΔE 6.4 · #375264

Hallman-Lindsay

Star-studded 620

ΔE 6.9 · #32425A

Kobra

Blue 31

ΔE 8.3 · #334059

Kilz

Fountain Pen RC100-02

ΔE 8.4 · #354A67

RAL

Ocean Blue 5020

ΔE 8.9 · #1D334A

Farrow & Ball

Hague Blue 30

ΔE 9.7 · #3D4E57

IKEA

IKEA122 122

ΔE 10.3 · #3A5170

Colorhouse

Wool .06 Wool-06

ΔE 12.1 · #485761

Dutch Boy

Royal Blue D-6740

ΔE 14.2 · #1D375C

Light Reflectance & Undertone

Light Reflectance Value (LRV)

5/100

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

#214559
#593521

Analogous

#215951
#214559
#212959

Triadic

#214559
#592146
#465921

Split-Complementary

#214559
#592129
#595121

Tetradic

#214559
#512159
#593521
#295921

Monochromatic

#070F13
#0C1A22
#214559
#367191
#549AC0

Rectangle

#214559
#352159
#593521
#465921

Compound

#214559
#212959
#593521
#595121

Variations

Lighter

#367292
#5D98B8
#A5C2D1

Darker

#193849
#112733
#09171E

Saturation

#354046
#214659
#114B6A

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)

Aa

vs White

10.19:1

AAA

Aa

vs Black

2.06:1

Fail

Deuteranopia

#214559
#343E5A

Original → Simulated

Protanopia

#214559
#404057

Original → Simulated

Tritanopia

#214559
#1E4845

Original → Simulated

Color Psychology

Focused · Cooling

Astronaut 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

#58605E

Warm Bulb 2700K

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

#214559

Daylight 5500K

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

#456582

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.

#482E20

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 / Aura Interior (for richer color depth in deep tones)

Recommended Finishes

Matte (walls) · Pearl (trim) · Satin (doors)

Deep colors look best in matte — gloss exaggerates surface flaws. Reserve subtle sheen for trim, doors, and high-touch areas.

Best Surfaces

Accent walls · Doors · Cabinetry · Built-ins

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

Tinted primer in a similar value is highly recommended — saves a coat and prevents the wall colour from washing the surface.

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

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: #214559;
CSS — background 
background-color: #214559;
CSS Variable 
--color-astronaut-blue: #214559;
Tailwind v3 — config 
colors: { 'astronaut-blue': '#214559' }
Tailwind — arbitrary 
bg-[#214559] text-[#214559]
SCSS 
$astronaut-blue: #214559;

Similar Colors

Twilight

#254455 · ΔE 2.1

Washington Blue

#304656 · ΔE 4.4

Champion Cobalt

#264864 · ΔE 5.7

Hidden Sapphire

#023B4E · ΔE 5.8

Marine Blue

#1D3E59 · ΔE 6.0

Teal

#144552 · ΔE 6.2

Adriatic Sea

#004763 · ΔE 6.4

North Sea

#2B3B4C · ΔE 6.8
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 #214559?

#214559 is Astronaut Blue, a deep blue with a cool undertone.

Is #214559 warm or cool?

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

What rooms work best with Astronaut Blue?

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

What colors pair well with Astronaut Blue?

Astronaut 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 Astronaut Blue?

You can download Astronaut 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 Astronaut Blue?

The hex code is #214559. In RGB it's 33, 69, 89, and in HSL it's 201°, 46%, 24%.

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