BLUES

Shirt Blue

#6598AF

RGB 101, 152, 175 · HSL 199°, 32%, 54% · CMYK 42, 13, 0, 31

Shirt Blue is #6598AF in HEX — rgb(101, 152, 175), hsl(199°, 32%, 54%), cmyk(42%, 13%, 0%, 31%).

Shirt Blue pulls into the mid-tone end of the blues spectrum — HSL 199°, 32%, 54%. 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#6598AF

RGB101, 152, 175

HSL199°, 32%, 54%

HSV199°, 42%, 69%

CMYK42, 13, 0, 31

Decimal6658223

CSS RGBrgb(101, 152, 175)

CSS HSLhsl(199, 32%, 54%)

Paint Matches — this color across 16 brands

Behr

Skipper 570F-5

ΔE 2.2 · #6593A9

Dunn-Edwards

Lake Lucerne DE5808

ΔE 2.5 · #689DB7

Sherwin-Williams

Bluebird Feather SW9062

ΔE 2.6 · #6F9DB3

Kilz

Seaside Retreat RD150-01

ΔE 2.9 · #6F9CB5

Dulux

Adventure Isle S35C3

ΔE 3.4 · #6EA1B8

PPG

Aqua Blue 1151-5

ΔE 3.7 · #5E97A9

Valspar

Rushing Rapids 5001-8A

ΔE 4.1 · #5E97B5

Vista Paint

Wonderful World K-178

ΔE 4.2 · #6D99A9

Benjamin Moore

Blue 2062-40

ΔE 4.6 · #558EA8

Hallman-Lindsay

Meetinghouse Blue historic-meetinghouse-blue

ΔE 5 · #739DAD

IKEA

IKEA120 120

ΔE 5.7 · #6C8EA3

Farrow & Ball

St Giles Blue 280

ΔE 9.1 · #599EC4

Dutch Boy

Blue Wings VS-9402

ΔE 10.9 · #8AB1C2

Colorhouse

Water .05 Water-05

ΔE 12.7 · #82979D

RAL

Turquoise Blue 5018

ΔE 14 · #3F888F

Kobra

Blue 28

ΔE 14.1 · #4EB3CD

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

#6598AF

#AF7C64

Analogous

#64AFA1

#6598AF

#6472AF

Triadic

#6598AF

#AF6497

#97AF64

Split-Complementary

#6598AF

#AF6472

#AFA164

Tetradic

#6598AF

#A164AF

#AF7C64

#72AF64

Monochromatic

#2A4451

#446F83

#6598AF

#97B9C9

#C9DBE3

Rectangle

#6598AF

#7C64AF

#AF7C64

#97AF64

Compound

#6598AF

#6472AF

#AF7C64

#AFA164

Variations

Lighter

#83ACBF

#A5C0CC

#CDD9DF

Darker

#497C93

#315666

#1C323C

Saturation

#7E8E95

#6497AF

#3CA6D7

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

3.15:1

AA Large

vs Black

6.66:1

Deuteranopia

#6598AF

#818CB0

Original → Simulated

Protanopia

#6598AF

#9191AC

Original → Simulated

Tritanopia

#6598AF

#649B97

Original → Simulated

Color Psychology

Focused · Cooling

Shirt 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

#8B9F9E

Warm Bulb 2700K

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

#6598AF

Daylight 5500K

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

#78A4C3

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.

#956955

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: #6598AF;

CSS — background

background-color: #6598AF;

CSS Variable

--color-shirt-blue: #6598AF;

Tailwind v3 — config

colors: { 'shirt-blue': '#6598AF' }

Tailwind — arbitrary

bg-[#6598AF] text-[#6598AF]

SCSS

$shirt-blue: #6598AF;

Similar Colors

Palace Blue

#5D9FB6 · ΔE 4.4

I've Got the Blues

#6AA4BE · ΔE 4.8

Whipple Blue

#769EB0 · ΔE 4.8

Blue Daisy

#548DA7 · ΔE 4.9

Sea Reflections

#7092A3 · ΔE 5.8

Poolside

#5394B4 · ΔE 6.1

Blue Toile

#5598A9 · ΔE 6.1

Lafayette Blue

#6CA6C4 · ΔE 6.5

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 #6598AF?

#6598AF is Shirt Blue, a mid-tone blue with a cool undertone.

Is #6598AF warm or cool?

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

What rooms work best with Shirt Blue?

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

What colors pair well with Shirt Blue?

Shirt 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 Shirt Blue?

You can download Shirt 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 Shirt Blue?

The hex code is #6598AF. In RGB it's 101, 152, 175, and in HSL it's 199°, 32%, 54%.

← All colors