BLUES

Boo Blue

#84AFD5

RGB 132, 175, 213 · HSL 208°, 49%, 68% · CMYK 38, 18, 0, 16

Boo Blue is #84AFD5 in HEX — rgb(132, 175, 213), hsl(208°, 49%, 68%), cmyk(38%, 18%, 0%, 16%).

Boo Blue pulls into the light end of the blues spectrum — HSL 208°, 49%, 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#84AFD5

RGB132, 175, 213

HSL208°, 49%, 68%

HSV208°, 38%, 84%

CMYK38, 18, 0, 16

Decimal8695765

CSS RGBrgb(132, 175, 213)

CSS HSLhsl(208, 49%, 68%)

Paint Matches — this color across 16 brands

Kilz

Blue Hydrangea RC180-02

ΔE 1 · #87B0D7

Dulux

Cottonwool Blue S38H3

ΔE 1.2 · #83AED2

Behr

Bluebird PPU15-12

ΔE 1.4 · #89B1D8

Valspar

Blue Eyes 4007-8A

ΔE 1.7 · #86ACD2

Vista Paint

Gaugin's Blue K-139

ΔE 3.9 · #87B4D4

Benjamin Moore

Cascade CC-904

ΔE 5 · #8EAEDA

Hallman-Lindsay

Calm Tint 645

ΔE 5.2 · #8DB1CE

Dunn-Edwards

Wandering River DE5850

ΔE 5.4 · #73A4C6

PPG

Viva La Bleu 1242-3

ΔE 5.9 · #97BEE2

Sherwin-Williams

Regale Blue SW6801

ΔE 6.4 · #7DB5D3

Dutch Boy

John's Blue DCP-0617

ΔE 7.5 · #97B2CD

IKEA

IKEA084 84

ΔE 8.5 · #83AAC1

Farrow & Ball

St Giles Blue 280

ΔE 10 · #599EC4

Kobra

Violet 23

ΔE 16.5 · #B7B1DC

Colorhouse

Dream .03 Dream-03

ΔE 17.8 · #B4CBD9

RAL

Window Grey 7040

ΔE 19.7 · #9DA1AA

Light Reflectance & Undertone

Light Reflectance Value (LRV)

40/100

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

#84AFD5

#D5AB85

Analogous

#85D5D3

#84AFD5

#8588D5

Triadic

#84AFD5

#D585B0

#B0D585

Split-Complementary

#84AFD5

#D58588

#D5D385

Tetradic

#84AFD5

#D385D5

#D5AB85

#88D585

Monochromatic

#316490

#4C8BC2

#84AFD5

#BED5E9

#ECF3F8

Rectangle

#84AFD5

#AB85D5

#D5AB85

#B0D585

Compound

#84AFD5

#8588D5

#D5AB85

#D5D385

Variations

Lighter

#9EC0DE

#BACFE2

#D9E3EC

Darker

#4F8FC7

#2C6393

#183A57

Saturation

#A1AEB9

#85B0D5

#71B1EA

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

2.31:1

Fail

vs Black

9.07:1

AAA

Deuteranopia

#84AFD5

#97A6D6

Original → Simulated

Protanopia

#84AFD5

#A9A9D1

Original → Simulated

Tritanopia

#84AFD5

#81B5AF

Original → Simulated

Color Psychology

Focused · Cooling

Boo 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

#A2B0BB

Warm Bulb 2700K

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

#84AFD5

Daylight 5500K

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

#90B5DF

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.

#C09067

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: #84AFD5;

CSS — background

background-color: #84AFD5;

CSS Variable

--color-boo-blue: #84AFD5;

Tailwind v3 — config

colors: { 'boo-blue': '#84AFD5' }

Tailwind — arbitrary

bg-[#84AFD5] text-[#84AFD5]

SCSS

$boo-blue: #84AFD5;

Similar Colors

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#8DADD9 · ΔE 5.0

Summer Blue

#92B3E0 · ΔE 5.6

San Francisco Bay

#79A7C5 · ΔE 5.7

Blue Marguerite

#84BBDC · ΔE 6.1

Tidal Wave

#7CB7D6 · ΔE 6.8

Nova Scotia Blue

#6BA3D0 · ΔE 7.0

Five Dollar Bill

#81A5C0 · ΔE 7.1

Sea to Shining Sea

#6DB4DC · ΔE 7.2

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 #84AFD5?

#84AFD5 is Boo Blue, a soft blue with a cool undertone.

Is #84AFD5 warm or cool?

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

What rooms work best with Boo Blue?

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

What colors pair well with Boo Blue?

Boo 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 Boo Blue?

You can download Boo 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 Boo Blue?

The hex code is #84AFD5. In RGB it's 132, 175, 213, and in HSL it's 208°, 49%, 68%.

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