BLUES

Cool

#429BB8

RGB 66, 155, 184 · HSL 195°, 47%, 49% · CMYK 64, 16, 0, 28

Cool is #429BB8 in HEX — rgb(66, 155, 184), hsl(195°, 47%, 49%), cmyk(64%, 16%, 0%, 28%).

Cool pulls into the mid-tone end of the blues spectrum — HSL 195°, 47%, 49%. 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#429BB8

RGB66, 155, 184

HSL195°, 47%, 49%

HSV195°, 64%, 72%

CMYK64, 16, 0, 28

Decimal4365240

CSS RGBrgb(66, 155, 184)

CSS HSLhsl(195, 47%, 49%)

Paint Matches — this color across 16 brands

Benjamin Moore

Cool 2058-40

Exact match

Behr

Jay Bird S490-5

ΔE 1.9 · #459DB7

Valspar

Pool Party 5002-10B

ΔE 3.6 · #2D9ABC

Kilz

Vintage Sapphire RD260-02

ΔE 3.7 · #569FBC

Dulux

Carol S34D4

ΔE 3.9 · #3391AE

PPG

Hush-a-bye 1238-5

ΔE 5.2 · #5397B7

Sherwin-Williams

Major Blue SW6795

ΔE 5.8 · #289EC4

Vista Paint

Patch of Blue K-186

ΔE 5.9 · #4CAAC4

Dunn-Edwards

Mediterranean Sea DE5830

ΔE 6.3 · #1E8CAB

Farrow & Ball

St Giles Blue 280

ΔE 7.7 · #599EC4

Hallman-Lindsay

Blue Bliss 675

ΔE 7.7 · #0092AA

Kobra

Blue 28

ΔE 9.2 · #4EB3CD

IKEA

IKEA120 120

ΔE 13.8 · #6C8EA3

RAL

Turquoise Blue 5018

ΔE 14.6 · #3F888F

Dutch Boy

Sky Blue D-6742

ΔE 15.5 · #7AC2D8

Colorhouse

Dream .06 Dream-06

ΔE 19.9 · #0E707B

Light Reflectance & Undertone

Light Reflectance Value (LRV)

28/100

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

#429BB8

#B86042

Analogous

#42B89A

#429BB8

#4260B8

Triadic

#429BB8

#B8429A

#9AB842

Split-Complementary

#429BB8

#B84260

#B89A42

Tetradic

#429BB8

#9A42B8

#B86042

#60B842

Monochromatic

#1A3C47

#2E6B7F

#429BB8

#78B9CE

#B0D6E3

Rectangle

#429BB8

#6042B8

#B86042

#9AB842

Compound

#429BB8

#4260B8

#B86042

#B89A42

Variations

Lighter

#66AFC8

#92C1D0

#C3D9E0

Darker

#337D95

#215668

#12333E

Saturation

#6B868F

#429AB8

#21ABD9

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

3.18:1

AA Large

vs Black

6.61:1

Deuteranopia

#429BB8

#7889B9

Original → Simulated

Protanopia

#429BB8

#9191B5

Original → Simulated

Tritanopia

#429BB8

#409F99

Original → Simulated

Color Psychology

Focused · Cooling

Cool 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

#71A1A5

Warm Bulb 2700K

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

#429BB8

Daylight 5500K

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

#5EA6C9

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.

#F7F8F8

Ceiling

Whisper tint

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

#955540

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 · Doors · Mouldings

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: #429BB8;

CSS — background

background-color: #429BB8;

CSS Variable

--color-cool: #429BB8;

Tailwind v3 — config

colors: { 'cool': '#429BB8' }

Tailwind — arbitrary

bg-[#429BB8] text-[#429BB8]

SCSS

$cool: #429BB8;

Similar Colors

Cool Blue

#419AB7 · ΔE 0.4

Dream I Can Fly

#1FA0C1 · ΔE 5.4

Palace Blue

#5D9FB6 · ΔE 5.7

Poolside

#5394B4 · ΔE 6.1

Ash Blue

#4D9CAE · ΔE 6.3

Yosemite Blue

#17A1C8 · ΔE 7.3

Blue Toile

#5598A9 · ΔE 7.5

Blue Lagoon

#409CAC · ΔE 7.9

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 #429BB8?

#429BB8 is Cool, a mid-tone blue with a cool undertone.

Is #429BB8 warm or cool?

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

What rooms work best with Cool?

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

What colors pair well with Cool?

Cool 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 Cool?

You can download Cool 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 Cool?

The hex code is #429BB8. In RGB it's 66, 155, 184, and in HSL it's 195°, 47%, 49%.

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