BLUES

Beautiful Blue

#186DB6

RGB 24, 109, 182 · HSL 208°, 77%, 40% · CMYK 87, 40, 0, 29

Beautiful Blue is #186DB6 in HEX — rgb(24, 109, 182), hsl(208°, 77%, 40%), cmyk(87%, 40%, 0%, 29%).

Beautiful Blue pulls into the rich end of the blues spectrum — HSL 208°, 77%, 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#186DB6

RGB24, 109, 182

HSL208°, 77%, 40%

HSV208°, 87%, 71%

CMYK87, 40, 0, 29

Decimal1600950

CSS RGBrgb(24, 109, 182)

CSS HSLhsl(208, 77%, 40%)

Paint Matches — this color across 16 brands

Dunn-Edwards

Beautiful Blue DEA136

Exact match

Benjamin Moore

Big 2066-30

ΔE 2.9 · #0167B2

PPG

Cobalt Stone 1241-7

ΔE 3.8 · #0264AE

Behr

Electric Blue MQ4-24

ΔE 3.8 · #2C6CAF

Dulux

Barbados Blue S39H7

ΔE 4.3 · #276AAC

RAL

Sky Blue 5015

ΔE 4.8 · #2271B3

Vista Paint

Soothing Sapphire K-129

ΔE 6.1 · #297BC1

Hallman-Lindsay

Biloxi Blue historic-biloxi-blue

ΔE 6.3 · #0075B8

Dutch Boy

Blue Sea VS-9451

ΔE 7.3 · #2D61AD

Valspar

Peek-A-Boo Blue 4007-10C

ΔE 8 · #3370AC

IKEA

IKEA128 128

ΔE 8.8 · #4A72B0

Sherwin-Williams

Blue Chip SW6959

ΔE 10.8 · #016EA7

Kilz

Aspiration RH190

ΔE 11.6 · #217AB4

Colorhouse

Petal .05 Petal-05

ΔE 16.2 · #1F4992

Kobra

Blue 30

ΔE 17.6 · #195584

Farrow & Ball

Pitch Blue 220

ΔE 26 · #636E8F

Light Reflectance & Undertone

Light Reflectance Value (LRV)

15/100

Dark

0 · DarkLight · 100

Soaks up light and feels moody and intimate. Great for studies, dining rooms and accent walls; pair with ample lighting.

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

#186DB6

#B56117

Analogous

#17B5AF

#186DB6

#171DB5

Triadic

#186DB6

#B5176B

#6BB517

Split-Complementary

#186DB6

#B5171D

#B5AF17

Tetradic

#186DB6

#AF17B5

#B56117

#1DB517

Monochromatic

#061B2D

#0F4371

#186DB6

#3492E5

#78B6ED

Rectangle

#186DB6

#6117B5

#B56117

#6BB517

Compound

#186DB6

#171DB5

#B56117

#B5AF17

Variations

Lighter

#268BE3

#67A7DF

#ADCBE6

Darker

#105694

#093B68

#04233E

Saturation

#4E687E

#176BB5

#0C6CC0

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

5.38:1

vs Black

3.90:1

AA Large

Deuteranopia

#186DB6

#3B66B7

Original → Simulated

Protanopia

#186DB6

#6464AF

Original → Simulated

Tritanopia

#186DB6

#007C70

Original → Simulated

Color Psychology

Focused · Cooling

Beautiful 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

#517EA4

Warm Bulb 2700K

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

#186DB6

Daylight 5500K

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

#3F83C8

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.

#8F531E

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: #186DB6;

CSS — background

background-color: #186DB6;

CSS Variable

--color-beautiful-blue: #186DB6;

Tailwind v3 — config

colors: { 'beautiful-blue': '#186DB6' }

Tailwind — arbitrary

bg-[#186DB6] text-[#186DB6]

SCSS

$beautiful-blue: #186DB6;

Similar Colors

Big Country Blue

#0066B1 · ΔE 3.3

Brilliant Blue

#0063A6 · ΔE 5.2

Paddington Blue

#1369A7 · ΔE 6.9

Mosaic

#3862A3 · ΔE 7.7

Ol' Blue Eyes

#0062A0 · ΔE 7.7

Athens Blue

#3D74AC · ΔE 10.9

Twilight Blue

#365496 · ΔE 12.7

Evening Blue

#004E93 · ΔE 12.9

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 #186DB6?

#186DB6 is Beautiful Blue, a mid-tone blue with a cool undertone.

Is #186DB6 warm or cool?

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

What rooms work best with Beautiful Blue?

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

What colors pair well with Beautiful Blue?

Beautiful 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 Beautiful Blue?

You can download Beautiful 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 Beautiful Blue?

The hex code is #186DB6. In RGB it's 24, 109, 182, and in HSL it's 208°, 77%, 40%.

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