BLUES

Aquarium

#81C0D8

RGB 129, 192, 216 · HSL 197°, 53%, 68% · CMYK 40, 11, 0, 15

Aquarium is #81C0D8 in HEX — rgb(129, 192, 216), hsl(197°, 53%, 68%), cmyk(40%, 11%, 0%, 15%).

Aquarium pulls into the light end of the blues spectrum — HSL 197°, 53%, 68%. 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#81C0D8

RGB129, 192, 216

HSL197°, 53%, 68%

HSV197°, 40%, 85%

CMYK40, 11, 0, 15

Decimal8503512

CSS RGBrgb(129, 192, 216)

CSS HSLhsl(197, 53%, 68%)

Paint Matches — this color across 16 brands

Benjamin Moore

Aquarium 2058-50

Exact match

Dulux

Blue Charm S34D1

ΔE 2.3 · #82C5DB

Valspar

Water Fountain 5001-10A

ΔE 2.3 · #7FBCD7

Sherwin-Williams

Sky Fall SW9049

ΔE 2.4 · #89C6DF

Dunn-Edwards

Winter Chime DE5828

ΔE 2.7 · #83C7DF

Dutch Boy

Sky Blue D-6742

ΔE 2.8 · #7AC2D8

Behr

Chilly Blue S500-4

ΔE 3.3 · #87C8DD

Vista Paint

Skyway K-187

ΔE 3.4 · #76BED3

PPG

Harbor Sky 1238-4

ΔE 4.1 · #7EB6D0

Kilz

Mountain Creek RE260-01

ΔE 5.6 · #77C7DB

Hallman-Lindsay

Lasting Thoughts 659

ΔE 5.8 · #72C7E3

Kobra

Blue 27

ΔE 5.8 · #87C8D7

IKEA

IKEA119 119

ΔE 7.1 · #9BC2D8

Farrow & Ball

Lulworth Blue 89

ΔE 12.1 · #A1B8CA

RAL

Pastel Turquoise 6034

ΔE 13.8 · #7FB5B5

Colorhouse

Dream .03 Dream-03

ΔE 14.1 · #B4CBD9

Light Reflectance & Undertone

Light Reflectance Value (LRV)

47/100

Medium

0 · DarkLight · 100

Balanced reflectance — holds colour without washing out. Versatile for most rooms and the most forgiving range for true-to-chip results.

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

#81C0D8

#D99B82

Analogous

#82D9C6

#81C0D8

#8295D9

Triadic

#81C0D8

#D982C0

#C0D982

Split-Complementary

#81C0D8

#D98295

#D9C682

Tetradic

#81C0D8

#C682D9

#D99B82

#95D982

Monochromatic

#2E7794

#48A3C7

#81C0D8

#BDDEEB

#EBF5F9

Rectangle

#81C0D8

#9B82D9

#D99B82

#C0D982

Compound

#81C0D8

#8295D9

#D99B82

#D9C682

Variations

Lighter

#9BCDE0

#B8D8E4

#D8E7ED

Darker

#4AA7CB

#287797

#164659

Saturation

#A0B3BA

#82C0D9

#6FC8EC

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

2.01:1

Fail

vs Black

10.46:1

AAA

Deuteranopia

#81C0D8

#A4B0DA

Original → Simulated

Protanopia

#81C0D8

#B7B7D5

Original → Simulated

Tritanopia

#81C0D8

#80C3BF

Original → Simulated

Color Psychology

Focused · Cooling

Aquarium 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

#A0BDBD

Warm Bulb 2700K

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

#81C0D8

Daylight 5500K

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

#8DC2E1

Cool Bulb 6500K

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

Pairs With

#E9EBED

Trim

Matched off-white

Same hue at 92% lightness — trim reads coordinated, not stark.

#F7F8F8

Ceiling

Whisper tint

Near-white with a hint of the hero's undertone — ceiling feels intentional.

#C47E63

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: #81C0D8;

CSS — background

background-color: #81C0D8;

CSS Variable

--color-aquarium: #81C0D8;

Tailwind v3 — config

colors: { 'aquarium': '#81C0D8' }

Tailwind — arbitrary

bg-[#81C0D8] text-[#81C0D8]

SCSS

$aquarium: #81C0D8;

Similar Colors

Aquarium Blue

#80BFD7 · ΔE 0.4

Clear Sailing

#83B8D0 · ΔE 3.7

Turquoise Powder

#87C0D1 · ΔE 4.0

Graceful Sea

#76C2D7 · ΔE 4.1

St. Lucia Skies

#7DBCDB · ΔE 4.1

Pool Party

#76C4E2 · ΔE 4.6

Seaside Blue

#80C0CF · ΔE 5.1

Tidal Wave

#7CB7D6 · ΔE 5.2

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 #81C0D8?

#81C0D8 is Aquarium, a soft blue with a cool undertone.

Is #81C0D8 warm or cool?

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

What rooms work best with Aquarium?

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

What colors pair well with Aquarium?

Aquarium 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 Aquarium?

You can download Aquarium 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 Aquarium?

The hex code is #81C0D8. In RGB it's 129, 192, 216, and in HSL it's 197°, 53%, 68%.

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