BLUES

Serene Blue

#1199BB

RGB 17, 153, 187 · HSL 192°, 83%, 40% · CMYK 91, 18, 0, 27

Serene Blue is #1199BB in HEX — rgb(17, 153, 187), hsl(192°, 83%, 40%), cmyk(91%, 18%, 0%, 27%).

Serene Blue pulls into the rich end of the blues spectrum — HSL 192°, 83%, 40%. The saturated saturation makes it bold and immediate, 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#1199BB

RGB17, 153, 187

HSL192°, 83%, 40%

HSV192°, 91%, 73%

CMYK91, 18, 0, 27

Decimal1153467

CSS RGBrgb(17, 153, 187)

CSS HSLhsl(192, 83%, 40%)

Paint Matches — this color across 16 brands

Valspar

Pool Party 5002-10B

ΔE 2.3 · #2D9ABC

Benjamin Moore

Dream 769

ΔE 3 · #20A1C2

Dulux

Summer Sky S34F4

ΔE 3.4 · #0F96BD

Sherwin-Williams

Major Blue SW6795

ΔE 3.5 · #289EC4

Vista Paint

Charybdis C-660

ΔE 4.5 · #1DA1C9

Hallman-Lindsay

Charybdis 661

ΔE 4.9 · #16A3CB

Behr

Hacienda Blue P490-6

ΔE 5.2 · #28A6C5

Dunn-Edwards

Mediterranean Sea DE5830

ΔE 5.5 · #1E8CAB

Kilz

Centurian Blue RH180

ΔE 6 · #158AAB

PPG

Bellflower 1237-6

ΔE 6.5 · #1993BE

Farrow & Ball

St Giles Blue 280

ΔE 10.6 · #599EC4

Kobra

Blue 28

ΔE 10.9 · #4EB3CD

RAL

Turquoise Blue 5018

ΔE 17.3 · #3F888F

IKEA

IKEA120 120

ΔE 18.7 · #6C8EA3

Dutch Boy

Sky Blue D-6742

ΔE 18.8 · #7AC2D8

Colorhouse

Dream .06 Dream-06

ΔE 20.6 · #0E707B

Light Reflectance & Undertone

Light Reflectance Value (LRV)

26/100

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 MasstoneTeal UndertoneGreen

Reads as a cool teal with a green undertone showing through, especially in daylight. Pair trim and adjacent colours to either calm or amplify that undertone.

Color Theory

Complementary

#1199BB

#BB3311

Analogous

#11BB88

#1199BB

#1144BB

Triadic

#1199BB

#BB1199

#99BB11

Split-Complementary

#1199BB

#BB1144

#BB8811

Tetradic

#1199BB

#8811BB

#BB3311

#44BB11

Monochromatic

#04262F

#0B5F75

#1199BB

#2DC5EB

#73D9F2

Rectangle

#1199BB

#3311BB

#BB3311

#99BB11

Compound

#1199BB

#1144BB

#BB3311

#BB8811

Variations

Lighter

#1FC2EA

#62CAE4

#AADCE9

Darker

#0A7C99

#05576B

#013340

Saturation

#4D757F

#1199BB

#099EC3

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

3.33:1

AA Large

vs Black

6.30:1

Deuteranopia

#1199BB

#6E83BD

Original → Simulated

Protanopia

#1199BB

#8D8DB7

Original → Simulated

Tritanopia

#1199BB

#029E97

Original → Simulated

Color Psychology

Focused · Cooling

Serene 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

#4C9FA7

Warm Bulb 2700K

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

#1199BB

Daylight 5500K

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

#39A4CC

Cool Bulb 6500K

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

Pairs With

#E8ECEE

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.

#94321A

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: #1199BB;

CSS — background

background-color: #1199BB;

CSS Variable

--color-serene-blue: #1199BB;

Tailwind v3 — config

colors: { 'serene-blue': '#1199BB' }

Tailwind — arbitrary

bg-[#1199BB] text-[#1199BB]

SCSS

$serene-blue: #1199BB;

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#1FA0C1 · ΔE 2.7

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#17A1C8 · ΔE 4.1

Cool Blue

#419AB7 · ΔE 5.3

Toronto Blue

#199FCC · ΔE 6.9

Meridian Blue

#0493A7 · ΔE 8.8

Electric Blue

#3E90B8 · ΔE 9.0

Lake Tahoe

#4298C4 · ΔE 9.5

Poolside

#5394B4 · ΔE 10.0

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 #1199BB?

#1199BB is Serene Blue, a mid-tone blue with a cool undertone.

Is #1199BB warm or cool?

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

What rooms work best with Serene Blue?

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

What colors pair well with Serene Blue?

Serene 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 Serene Blue?

You can download Serene 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 Serene Blue?

The hex code is #1199BB. In RGB it's 17, 153, 187, and in HSL it's 192°, 83%, 40%.

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