BLUES

Sea Crystal

#608BA6

RGB 96, 139, 166 · HSL 203°, 28%, 51% · CMYK 42, 16, 0, 35

Sea Crystal is #608BA6 in HEX — rgb(96, 139, 166), hsl(203°, 28%, 51%), cmyk(42%, 16%, 0%, 35%).

Sea Crystal pulls into the mid-tone end of the blues spectrum — HSL 203°, 28%, 51%. 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#608BA6

RGB96, 139, 166

HSL203°, 28%, 51%

HSV203°, 42%, 65%

CMYK42, 16, 0, 35

Decimal6327206

CSS RGBrgb(96, 139, 166)

CSS HSLhsl(203, 28%, 51%)

Paint Matches — this color across 16 brands

Vista Paint

Storm Blue Sky K-154

ΔE 1.2 · #618AA3

Dulux

Blue Fiord S36D4

ΔE 1.5 · #628FAA

Kilz

Dusty Turquoise TB-58

ΔE 2.3 · #5C859F

Benjamin Moore

Blue 1678 · CC-800

ΔE 2.6 · #6488A0

Valspar

Roadster Blue 4006-6B

ΔE 2.6 · #5A859E

Sherwin-Williams

Sporty Blue SW6522

ΔE 3.2 · #6A8AA4

Behr

French Court PPU14-4

ΔE 3.9 · #698EA3

Dunn-Edwards

Raging Tide DE5809

ΔE 4 · #5187A0

IKEA

IKEA120 120

ΔE 4.3 · #6C8EA3

PPG

Cosmopolitan 1158-5

ΔE 4.3 · #528BAB

Hallman-Lindsay

Heavenly Sky 618

ΔE 5.7 · #6B90B3

Farrow & Ball

Cook's Blue 237

ΔE 6.1 · #6A90B4

Dutch Boy

Celestial Horizon DCP-0589

ΔE 12.8 · #8FA4BF

RAL

Pigeon Blue 5014

ΔE 13.6 · #606E8C

Colorhouse

Water .05 Water-05

ΔE 14.3 · #82979D

Kobra

Grey 42

ΔE 15.1 · #889099

Light Reflectance & Undertone

Light Reflectance Value (LRV)

24/100

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

#608BA6

#A57A5F

Analogous

#5FA59D

#608BA6

#5F67A5

Triadic

#608BA6

#A55F8A

#8AA55F

Split-Complementary

#608BA6

#A55F67

#A59D5F

Tetradic

#608BA6

#9D5FA5

#A57A5F

#67A55F

Monochromatic

#273945

#426276

#608BA6

#90AEC1

#C1D2DC

Rectangle

#608BA6

#7A5FA5

#A57A5F

#8AA55F

Compound

#608BA6

#5F67A5

#A57A5F

#A59D5F

Variations

Lighter

#7FA2B7

#A2B8C6

#CBD5DC

Darker

#496F87

#314D5E

#1C2D37

Saturation

#78848D

#5F8AA5

#3295D2

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

3.66:1

AA Large

vs Black

5.74:1

Deuteranopia

#608BA6

#7581A7

Original → Simulated

Protanopia

#608BA6

#8585A3

Original → Simulated

Tritanopia

#608BA6

#5E8F8B

Original → Simulated

Color Psychology

Focused · Cooling

Sea Crystal 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

#879598

Warm Bulb 2700K

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

#608BA6

Daylight 5500K

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

#759ABC

Cool Bulb 6500K

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

Pairs With

#EAEBEC

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.

#8A6853

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: #608BA6;

CSS — background

background-color: #608BA6;

CSS Variable

--color-sea-crystal: #608BA6;

Tailwind v3 — config

colors: { 'sea-crystal': '#608BA6' }

Tailwind — arbitrary

bg-[#608BA6] text-[#608BA6]

SCSS

$sea-crystal: #608BA6;

Similar Colors

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#63879F · ΔE 2.7

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#6B89A3 · ΔE 3.8

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#548DA7 · ΔE 3.9

Buckland Blue

#618697 · ΔE 6.1

Poolside

#5394B4 · ΔE 6.4

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#7092A3 · ΔE 6.8

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#4E7F92 · ΔE 7.3

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 #608BA6?

#608BA6 is Sea Crystal, a mid-tone blue with a cool undertone.

Is #608BA6 warm or cool?

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

What rooms work best with Sea Crystal?

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

What colors pair well with Sea Crystal?

Sea Crystal 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 Sea Crystal?

You can download Sea Crystal 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 Sea Crystal?

The hex code is #608BA6. In RGB it's 96, 139, 166, and in HSL it's 203°, 28%, 51%.

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