BLUES

Astro Nautico

#5383C3

RGB 83, 131, 195 · HSL 214°, 48%, 55% · CMYK 57, 33, 0, 24

Astro Nautico is #5383C3 in HEX — rgb(83, 131, 195), hsl(214°, 48%, 55%), cmyk(57%, 33%, 0%, 24%).

Astro Nautico pulls into the mid-tone end of the blues spectrum — HSL 214°, 48%, 55%. 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#5383C3

RGB83, 131, 195

HSL214°, 48%, 55%

HSV214°, 57%, 76%

CMYK57, 33, 0, 24

Decimal5473219

CSS RGBrgb(83, 131, 195)

CSS HSLhsl(214, 48%, 55%)

Paint Matches — this color across 16 brands

Dunn-Edwards

Bodega Bay DE5893

ΔE 3.2 · #5E81C1

Behr

Blue Iolite MQ4-25

ΔE 3.4 · #567DBF

Dulux

Sea Note S40H5

ΔE 3.4 · #5486C1

Hallman-Lindsay

Parkwater 612

ΔE 3.5 · #477BBD

Benjamin Moore

Blue 2067-40

ΔE 3.9 · #638AC7

Vista Paint

Parkwater C-611

ΔE 4.2 · #4B79BB

PPG

Blue Dart 1243-5

ΔE 5.2 · #518FD1

Valspar

Star Gazer 4008-8B

ΔE 6.2 · #508BC4

IKEA

IKEA128 128

ΔE 6.7 · #4A72B0

RAL

Light Blue 5012

ΔE 6.7 · #3B83BD

Kilz

Azurite RC110-01

ΔE 9.1 · #4E71A6

Sherwin-Williams

Gentian SW6817

ΔE 11.9 · #6572A5

Kobra

Blue 29

ΔE 14.1 · #1882B4

Dutch Boy

Blue Sea VS-9451

ΔE 16 · #2D61AD

Farrow & Ball

Cook's Blue 237

ΔE 17.2 · #6A90B4

Colorhouse

Petal .05 Petal-05

ΔE 24.9 · #1F4992

Light Reflectance & Undertone

Light Reflectance Value (LRV)

22/100

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

#5383C3

#C39455

Analogous

#55BCC3

#5383C3

#5D55C3

Triadic

#5383C3

#C35585

#85C355

Split-Complementary

#5383C3

#C35D55

#BCC355

Tetradic

#5383C3

#C355BC

#C39455

#55C35D

Monochromatic

#213C5E

#355F97

#5383C3

#8EAED7

#C6D6EB

Rectangle

#5383C3

#9455C3

#C39455

#85C355

Compound

#5383C3

#5D55C3

#C39455

#BCC355

Variations

Lighter

#779DCF

#9EB6D6

#C9D5E4

Darker

#3869A9

#244876

#142A46

Saturation

#7C8A9D

#5585C3

#3781E1

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

3.89:1

AA Large

vs Black

5.40:1

Deuteranopia

#5383C3

#617EC4

Original → Simulated

Protanopia

#5383C3

#7C7CBC

Original → Simulated

Tritanopia

#5383C3

#488F86

Original → Simulated

Color Psychology

Focused · Cooling

Astro Nautico 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

#7E8FAD

Warm Bulb 2700K

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

#5383C3

Daylight 5500K

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

#6B94D2

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.

#A87E47

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 · Trim · Soft furniture

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: #5383C3;

CSS — background

background-color: #5383C3;

CSS Variable

--color-astro-nautico: #5383C3;

Tailwind v3 — config

colors: { 'astro-nautico': '#5383C3' }

Tailwind — arbitrary

bg-[#5383C3] text-[#5383C3]

SCSS

$astro-nautico: #5383C3;

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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 #5383C3?

#5383C3 is Astro Nautico, a mid-tone blue with a cool undertone.

Is #5383C3 warm or cool?

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

What rooms work best with Astro Nautico?

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

What colors pair well with Astro Nautico?

Astro Nautico 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 Astro Nautico?

You can download Astro Nautico 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 Astro Nautico?

The hex code is #5383C3. In RGB it's 83, 131, 195, and in HSL it's 214°, 48%, 55%.

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