NEUTRALS

Blue Plaza

#30363C

RGB 48, 54, 60 · HSL 210°, 11%, 21% · CMYK 20, 10, 0, 76

Blue Plaza is #30363C in HEX — rgb(48, 54, 60), hsl(210°, 11%, 21%), cmyk(20%, 10%, 0%, 76%).

Blue Plaza pulls into the deep end of the neutrals spectrum — HSL 210°, 11%, 21%. The neutral saturation makes it near-neutral and forgiving, and the hue reads cool. In interior projects it shines on main walls, trims, ceilings — versatile across nearly any style. Reads best alongside soft whites, natural wood, matte black trim, linen.

Color Codes

HEX#30363C

RGB48, 54, 60

HSL210°, 11%, 21%

HSV210°, 20%, 24%

CMYK20, 10, 0, 76

Decimal3159612

CSS RGBrgb(48, 54, 60)

CSS HSLhsl(210, 11%, 21%)

Paint Matches — this color across 16 brands

Dulux

Blue Plaza S37A9

Exact match

RAL

Granite Grey 7026

ΔE 0.5 · #2F353B

Behr

Spade Black BNC-38

ΔE 1.3 · #2D3439

Sherwin-Williams

Inkwell SW6992

ΔE 1.4 · #31363A

Benjamin Moore

After CSP-630

ΔE 1.5 · #34393F

Vista Paint

In the Dark K-776

ΔE 2.4 · #36373C

Hallman-Lindsay

Octavius 522

ΔE 2.8 · #38393F

Colorhouse

Nourish .06 Nourish-06

ΔE 3.5 · #313536

Kobra

Black 44

ΔE 5.1 · #383737

Kilz

Mystic Black TB-39

ΔE 5.3 · #383938

Dunn-Edwards

Black DEA187

ΔE 5.5 · #3B3A3A

Valspar

Dark Kettle Black 4011-2

ΔE 5.6 · #3F4043

IKEA

IKEA186 186

ΔE 5.7 · #302F2F

PPG

Napoleon 1013-7

ΔE 6 · #404149

Farrow & Ball

Pitch Black 256

ΔE 6.1 · #3B3938

Dutch Boy

Dark Chocolate D-6782

ΔE 12.4 · #392A27

Light Reflectance & Undertone

Light Reflectance Value (LRV)

4/100

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

A near-neutral with a subtle cool violet undertone — it will pick up colour from surrounding surfaces and shift noticeably under different light.

Color Theory

Complementary

#30363C

#3B3630

Analogous

#303B3B

#30363C

#30303B

Triadic

#30363C

#3B3036

#363B30

Split-Complementary

#30363C

#3B3030

#3B3B30

Tetradic

#30363C

#3B303B

#3B3630

#303B30

Monochromatic

#0B0D0E

#0E0F11

#30363C

#525C66

#748290

Rectangle

#30363C

#36303B

#3B3630

#363B30

Compound

#30363C

#30303B

#3B3630

#3B3B30

Variations

Lighter

#545E68

#7B8691

#B3B8BE

Darker

#262B30

#1A1D21

#0F1113

Saturation

#343637

#30363B

#183653

Interior Use

Best Rooms

living rooms, bedrooms, kitchens

Best Uses

main walls, trim, accents

Pairs With

soft whites, natural wood, brass, matte black trim

Accessibility (WCAG)

vs White

12.22:1

AAA

vs Black

1.72:1

Fail

Deuteranopia

#30363C

#32353C

Original → Simulated

Protanopia

#30363C

#35353B

Original → Simulated

Tritanopia

#30363C

#303736

Original → Simulated

Color Psychology

Quiet · Versatile

Blue Plaza gets out of the way so the architecture and the people in the room do the work. The right neutral is never a default — it reads warm or cool, dusty or sharp depending on its undertone, and that undertone is what makes or breaks the room.

SymbolismBalance, sophistication, calm

PersonalityAdaptable, considered, timeless

versatileneutraltimelessbackdroptrimwall

How it looks under different light

#635548

Warm Bulb 2700K

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

#30363C

Daylight 5500K

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

#515A6C

Cool Bulb 6500K

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

Pairs With

#EAEBEB

Trim

Matched off-white

Same hue at 92% lightness — trim reads coordinated, not stark.

#F7F7F7

Ceiling

Whisper tint

Near-white with a hint of the hero's undertone — ceiling feels intentional.

#392E22

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 / Aura Interior (for richer color depth in deep tones)

Recommended Finishes

Matte (walls) · Pearl (trim) · Satin (doors)

Deep colors look best in matte — gloss exaggerates surface flaws. Reserve subtle sheen for trim, doors, and high-touch areas.

Best Surfaces

Accent walls · Doors · Cabinetry · Built-ins

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

Tinted primer in a similar value is highly recommended — saves a coat and prevents the wall colour from washing the surface.

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: #30363C;

CSS — background

background-color: #30363C;

CSS Variable

--color-blue-plaza: #30363C;

Tailwind v3 — config

colors: { 'blue-plaza': '#30363C' }

Tailwind — arbitrary

bg-[#30363C] text-[#30363C]

SCSS

$blue-plaza: #30363C;

Similar Colors

After Midnight

#33383E · ΔE 1.1

Polo Blue

#323A43 · ΔE 2.7

Soot

#373C41 · ΔE 2.9

Black Ink

#373A3D · ΔE 3.1

Midnight Dream

#323436 · ΔE 3.2

Black Knight

#303536 · ΔE 3.4

Black Satin

#313435 · ΔE 3.6

Black Berry

#3A3B3F · ΔE 3.6

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 #30363C?

#30363C is Blue Plaza, a deep neutral with a cool undertone.

Is #30363C warm or cool?

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

What rooms work best with Blue Plaza?

Blue Plaza works well in living rooms, bedrooms, kitchens. Designers typically use it for main walls, trim, accents.

What colors pair well with Blue Plaza?

Blue Plaza pairs naturally with soft whites, natural wood, brass, matte black trim. Its complementary color is also a strong contrast option for accents.

Where can I download Blue Plaza?

You can download Blue Plaza 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 Plaza?

The hex code is #30363C. In RGB it's 48, 54, 60, and in HSL it's 210°, 11%, 21%.

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