BLUES

Blue Smart

#5788B4

RGB 87, 136, 180 · HSL 208°, 38%, 52% · CMYK 52, 24, 0, 29

Blue Smart is #5788B4 in HEX — rgb(87, 136, 180), hsl(208°, 38%, 52%), cmyk(52%, 24%, 0%, 29%).

Blue Smart pulls into the mid-tone end of the blues spectrum — HSL 208°, 38%, 52%. The muted saturation makes it quiet but present, 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#5788B4

RGB87, 136, 180

HSL208°, 38%, 52%

HSV208°, 52%, 71%

CMYK52, 24, 0, 29

Decimal5736628

CSS RGBrgb(87, 136, 180)

CSS HSLhsl(208, 38%, 52%)

Paint Matches — this color across 16 brands

Dulux

Blue Smart S37H5

Exact match

PPG

Ship's Harbor 1161-5

ΔE 2.1 · #4F84AF

Valspar

Wellspring 4007-8B

ΔE 2.9 · #5E85B2

Sherwin-Williams

Perfect Periwinkle SW9065

ΔE 3.8 · #6487B0

Behr

Brisk Blue S530-5

ΔE 4.1 · #5E8DBF

Benjamin Moore

Lazy 803 · CC-846

ΔE 4.3 · #5F90B7

Dunn-Edwards

Blueberry Muffin DE5851

ΔE 5.5 · #5588AB

Vista Paint

Wakeby Beach K-137

ΔE 5.7 · #3E7DA8

Kilz

Just Chill RC150-01

ΔE 6 · #6888AC

Farrow & Ball

Cook's Blue 237

ΔE 6.2 · #6A90B4

Hallman-Lindsay

Heavenly Sky 618

ΔE 6.7 · #6B90B3

RAL

Light Blue 5012

ΔE 9 · #3B83BD

Kobra

Blue 29

ΔE 9.6 · #1882B4

IKEA

IKEA086 86

ΔE 9.8 · #748DAC

Dutch Boy

Celestial Horizon DCP-0589

ΔE 16.9 · #8FA4BF

Colorhouse

Water .05 Water-05

ΔE 23.4 · #82979D

Light Reflectance & Undertone

Light Reflectance Value (LRV)

23/100

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

#5788B4

#B38156

Analogous

#56B3B0

#5788B4

#5659B3

Triadic

#5788B4

#B35688

#88B356

Split-Complementary

#5788B4

#B35659

#B3B056

Tetradic

#5788B4

#B056B3

#B38156

#59B356

Monochromatic

#233A4D

#3A6182

#5788B4

#8BADCB

#C0D2E3

Rectangle

#5788B4

#8156B3

#B38156

#88B356

Compound

#5788B4

#5659B3

#B38156

#B3B056

Variations

Lighter

#78A0C2

#9EB7CD

#C9D5E0

Darker

#406D94

#2A4B67

#182C3D

Saturation

#778693

#5688B3

#308AD9

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

3.76:1

AA Large

vs Black

5.59:1

Deuteranopia

#5788B4

#6C7FB5

Original → Simulated

Protanopia

#5788B4

#8181AF

Original → Simulated

Tritanopia

#5788B4

#519089

Original → Simulated

Color Psychology

Focused · Cooling

Blue Smart 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

#8193A2

Warm Bulb 2700K

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

#5788B4

Daylight 5500K

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

#6E98C6

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.

#956E4C

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: #5788B4;

CSS — background

background-color: #5788B4;

CSS Variable

--color-blue-smart: #5788B4;

Tailwind v3 — config

colors: { 'blue-smart': '#5788B4' }

Tailwind — arbitrary

bg-[#5788B4] text-[#5788B4]

SCSS

$blue-smart: #5788B4;

Similar Colors

Lazy Sunday

#5E8FB6 · ΔE 4.0

Finley Blue

#4580A8 · ΔE 5.0

Waterloo

#5F8EC2 · ΔE 5.3

Mariner's Tale

#6B8DB3 · ΔE 5.5

Sailor's Sea Blue

#4A93BE · ΔE 6.7

Yin Yang

#6A82A8 · ΔE 7.3

Electric Blue

#3E90B8 · ΔE 8.4

Winter's Eve

#40729C · ΔE 8.7

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 #5788B4?

#5788B4 is Blue Smart, a mid-tone blue with a cool undertone.

Is #5788B4 warm or cool?

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

What rooms work best with Blue Smart?

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

What colors pair well with Blue Smart?

Blue Smart 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 Blue Smart?

You can download Blue Smart 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 Blue Smart?

The hex code is #5788B4. In RGB it's 87, 136, 180, and in HSL it's 208°, 38%, 52%.

← All colors