BLUES

Southern Blue

#365787

RGB 54, 87, 135 · HSL 216°, 43%, 37% · CMYK 60, 36, 0, 47

Southern Blue is #365787 in HEX — rgb(54, 87, 135), hsl(216°, 43%, 37%), cmyk(60%, 36%, 0%, 47%).

Southern Blue pulls into the rich end of the blues spectrum — HSL 216°, 43%, 37%. 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#365787

RGB54, 87, 135

HSL216°, 43%, 37%

HSV216°, 60%, 53%

CMYK60, 36, 0, 47

Decimal3561351

CSS RGBrgb(54, 87, 135)

CSS HSLhsl(216, 43%, 37%)

Paint Matches — this color across 16 brands

Benjamin Moore

Blue 798

ΔE 1.6 · #305789

Behr

Extreme S530-6

ΔE 2.4 · #3B5A8D

Dulux

Assassin S39F8

ΔE 2.4 · #2D5283

Kilz

Darkening Sky RH230

ΔE 3.3 · #3E5382

Dunn-Edwards

Slumber DE5860

ΔE 4.1 · #2D517C

RAL

Brillant Blue 5007

ΔE 4.7 · #3E5F8A

Sherwin-Williams

Frank Blue SW6967

ΔE 5 · #225288

Kobra

Blue 30

ΔE 5.3 · #195584

PPG

Blue Jewel 1167-7

ΔE 5.5 · #465383

Valspar

Classic Royal Blue 4009-8

ΔE 5.5 · #465380

Vista Paint

Wavy Navy K-1245

ΔE 6.8 · #005488

Hallman-Lindsay

Glacier Bay historic-glacier-bay

ΔE 8.2 · #005C94

IKEA

IKEA122 122

ΔE 10.7 · #3A5170

Dutch Boy

Delft Blue 7447

ΔE 12.8 · #003B67

Farrow & Ball

Pitch Blue 220

ΔE 14.9 · #636E8F

Colorhouse

Petal .05 Petal-05

ΔE 17.6 · #1F4992

Light Reflectance & Undertone

Light Reflectance Value (LRV)

9/100

Very Dark

0 · DarkLight · 100

Absorbs almost all light — dramatic and cocooning. Needs strong artificial lighting and works best as an accent or in well-lit rooms.

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

#365787

#876636

Analogous

#367F87

#365787

#3E3687

Triadic

#365787

#873656

#568736

Split-Complementary

#365787

#873E36

#7F8736

Tetradic

#365787

#87367F

#876636

#36873E

Monochromatic

#0A101A

#203350

#365787

#507AB9

#87A4CF

Rectangle

#365787

#663687

#876636

#568736

Compound

#365787

#3E3687

#876636

#7F8736

Variations

Lighter

#4874B5

#7B98C2

#B6C3D8

Darker

#29456E

#1B2F4C

#0F1B2D

Saturation

#525C6B

#365687

#1B51A2

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

7.32:1

AAA

vs Black

2.87:1

Fail

Deuteranopia

#365787

#3E5488

Original → Simulated

Protanopia

#365787

#525282

Original → Simulated

Tritanopia

#365787

#2E6059

Original → Simulated

Color Psychology

Focused · Cooling

Southern 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

#686E80

Warm Bulb 2700K

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

#365787

Daylight 5500K

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

#5573A5

Cool Bulb 6500K

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

Pairs With

#E9EAEC

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.

#6E5633

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: #365787;

CSS — background

background-color: #365787;

CSS Variable

--color-southern-blue: #365787;

Tailwind v3 — config

colors: { 'southern-blue': '#365787' }

Tailwind — arbitrary

bg-[#365787] text-[#365787]

SCSS

$southern-blue: #365787;

Similar Colors

Blue Suede Shoes

#2F5688 · ΔE 1.7

Blueberry Hill

#335183 · ΔE 3.0

Patriot Blue

#184A7C · ΔE 6.5

Southern Belle

#41548C · ΔE 6.9

Fancy Pants

#53618F · ΔE 7.2

California Blue

#005381 · ΔE 7.6

Old Glory

#396998 · ΔE 8.0

Bistro Blue

#53588A · ΔE 8.4

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 #365787?

#365787 is Southern Blue, a deep blue with a cool undertone.

Is #365787 warm or cool?

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

What rooms work best with Southern Blue?

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

What colors pair well with Southern Blue?

Southern 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 Southern Blue?

You can download Southern 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 Southern Blue?

The hex code is #365787. In RGB it's 54, 87, 135, and in HSL it's 216°, 43%, 37%.

← All colors