BLUES

Autumn Sky

#81B4DF

RGB 129, 180, 223 · HSL 207°, 59%, 69% · CMYK 42, 19, 0, 13

Autumn Sky is #81B4DF in HEX — rgb(129, 180, 223), hsl(207°, 59%, 69%), cmyk(42%, 19%, 0%, 13%).

Autumn Sky pulls into the light end of the blues spectrum — HSL 207°, 59%, 69%. 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#81B4DF

RGB129, 180, 223

HSL207°, 59%, 69%

HSV207°, 42%, 87%

CMYK42, 19, 0, 13

Decimal8500447

CSS RGBrgb(129, 180, 223)

CSS HSLhsl(207, 59%, 69%)

Paint Matches — this color across 16 brands

Valspar

Autumn Sky 4008-7C

Exact match

Dulux

Buoyant Blue S39F3

ΔE 2.2 · #84B0DB

Behr

Cest La Vie MQ4-27

ΔE 2.5 · #7FB9E6

Kilz

Blue Hydrangea RC180-02

ΔE 3.4 · #87B0D7

Vista Paint

Watery Sea C-637

ΔE 4.3 · #89BEE5

Hallman-Lindsay

Watery Sea 638

ΔE 4.4 · #88BFE7

PPG

Victoria Blue 1243-4

ΔE 5.1 · #7DAEE1

Benjamin Moore

Summer 2067-50

ΔE 5.5 · #93B4E1

Dunn-Edwards

Astral DE5856

ΔE 6.1 · #8EC2E7

Sherwin-Williams

Regale Blue SW6801

ΔE 7.7 · #7DB5D3

IKEA

IKEA085 85

ΔE 9.8 · #9FC1DF

Dutch Boy

John's Blue DCP-0617

ΔE 10.5 · #97B2CD

Farrow & Ball

St Giles Blue 280

ΔE 10.6 · #599EC4

Kobra

Blue 28

ΔE 16.8 · #4EB3CD

Colorhouse

Dream .03 Dream-03

ΔE 19.6 · #B4CBD9

RAL

Light Blue 5012

ΔE 21.2 · #3B83BD

Light Reflectance & Undertone

Light Reflectance Value (LRV)

43/100

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

#81B4DF

#DFAB81

Analogous

#81DFDA

#81B4DF

#8186DF

Triadic

#81B4DF

#DF81B5

#B5DF81

Split-Complementary

#81B4DF

#DF8186

#DFDA81

Tetradic

#81B4DF

#DA81DF

#DFAB81

#86DF81

Monochromatic

#29699E

#4491CF

#81B4DF

#BED9EE

#EBF3FA

Rectangle

#81B4DF

#AB81DF

#DFAB81

#B5DF81

Compound

#81B4DF

#8186DF

#DFAB81

#DFDA81

Variations

Lighter

#9AC3E5

#B8D2E7

#D8E4EF

Darker

#4694D4

#2267A0

#123C5F

Saturation

#A2B1BE

#81B5DF

#71B6EF

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

2.20:1

Fail

vs Black

9.53:1

AAA

Deuteranopia

#81B4DF

#98AAE0

Original → Simulated

Protanopia

#81B4DF

#ADADDA

Original → Simulated

Tritanopia

#81B4DF

#7DBBB4

Original → Simulated

Color Psychology

Focused · Cooling

Autumn Sky 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

#A0B4C2

Warm Bulb 2700K

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

#81B4DF

Daylight 5500K

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

#8DB9E7

Cool Bulb 6500K

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

Pairs With

#E8EBED

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.

#CA9061

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: #81B4DF;

CSS — background

background-color: #81B4DF;

CSS Variable

--color-autumn-sky: #81B4DF;

Tailwind v3 — config

colors: { 'autumn-sky': '#81B4DF' }

Tailwind — arbitrary

bg-[#81B4DF] text-[#81B4DF]

SCSS

$autumn-sky: #81B4DF;

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Sea to Shining Sea

#6DB4DC · ΔE 5.7

Cascade

#8DADD9 · ΔE 5.7

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#7BBDE1 · ΔE 6.6

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#6BA3D0 · ΔE 6.7

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 #81B4DF?

#81B4DF is Autumn Sky, a soft blue with a cool undertone.

Is #81B4DF warm or cool?

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

What rooms work best with Autumn Sky?

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

What colors pair well with Autumn Sky?

Autumn Sky 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 Autumn Sky?

You can download Autumn Sky 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 Autumn Sky?

The hex code is #81B4DF. In RGB it's 129, 180, 223, and in HSL it's 207°, 59%, 69%.

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