BLUES

Black Box

#0F282F

RGB 15, 40, 47 · HSL 193°, 52%, 12% · CMYK 68, 15, 0, 82

Black Box is #0F282F in HEX — rgb(15, 40, 47), hsl(193°, 52%, 12%), cmyk(68%, 15%, 0%, 82%).

Black Box pulls into the deep end of the blues spectrum — HSL 193°, 52%, 12%. The balanced saturation makes it confident without overpowering, 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#0F282F

RGB15, 40, 47

HSL193°, 52%, 12%

HSV193°, 68%, 18%

CMYK68, 15, 0, 82

Decimal993327

CSS RGBrgb(15, 40, 47)

CSS HSLhsl(193, 52%, 12%)

Paint Matches — this color across 16 brands

RAL

Green Blue 5001

ΔE 6.1 · #1F3438

Behr

Deep Space 750F-7

ΔE 6.6 · #253136

Sherwin-Williams

Dark Night SW6237

ΔE 7.6 · #23383F

Dulux

Cruel Sea S29A9

ΔE 8.1 · #213738

Benjamin Moore

Black HC-187

ΔE 8.6 · #252F2D

Hallman-Lindsay

Silent Sea 515

ΔE 10 · #2A2B2C

Vista Paint

Silent Sea C-514

ΔE 10.1 · #262627

Kilz

Deep Onyx TB-40

ΔE 11.1 · #242322

Colorhouse

Nourish .06 Nourish-06

ΔE 11.1 · #313536

IKEA

IKEA186 186

ΔE 11.8 · #302F2F

Kobra

Black 44

ΔE 13.8 · #383737

Dunn-Edwards

Black DEA187

ΔE 14.7 · #3B3A3A

Farrow & Ball

Pitch Black 256

ΔE 14.9 · #3B3938

Valspar

Dark Kettle Black 4011-2

ΔE 15.6 · #3F4043

PPG

Midnight Hour 1038-7

ΔE 15.7 · #3B484F

Dutch Boy

Dark Green D-6751

ΔE 16.7 · #214136

Light Reflectance & Undertone

Light Reflectance Value (LRV)

2/100

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 MasstoneTeal UndertoneGreen

Reads as a cool teal with a green undertone showing through, especially in daylight. Pair trim and adjacent colours to either calm or amplify that undertone.

Color Theory

Complementary

#0F282F

#2F160F

Analogous

#0F2F25

#0F282F

#0F182F

Triadic

#0F282F

#2F0F28

#282F0F

Split-Complementary

#0F282F

#2F0F18

#2F250F

Tetradic

#0F282F

#250F2F

#2F160F

#182F0F

Monochromatic

#061113

#0F282F

#215969

#338BA3

Rectangle

#0F282F

#160F2F

#2F160F

#282F0F

Compound

#0F282F

#0F182F

#2F160F

#2F250F

Variations

Lighter

#246273

#4397AE

#94C1CD

Darker

#0B2026

#07161A

#040D10

Saturation

#1A2123

#0F282F

#072C36

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

15.39:1

AAA

vs Black

1.36:1

Fail

Deuteranopia

#0F282F

#1E222F

Original → Simulated

Protanopia

#0F282F

#25252E

Original → Simulated

Tritanopia

#0F282F

#0F2927

Original → Simulated

Color Psychology

Focused · Cooling

Black Box 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

#4B4B3E

Warm Bulb 2700K

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

#0F282F

Daylight 5500K

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

#385063

Cool Bulb 6500K

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

Pairs With

#E9ECED

Trim

Matched off-white

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

#F7F8F8

Ceiling

Whisper tint

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

#42221A

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: #0F282F;

CSS — background

background-color: #0F282F;

CSS Variable

--color-black-box: #0F282F;

Tailwind v3 — config

colors: { 'black-box': '#0F282F' }

Tailwind — arbitrary

bg-[#0F282F] text-[#0F282F]

SCSS

$black-box: #0F282F;

Similar Colors

Black Forest Green

#242E2C · ΔE 8.4

Black

#2B2C2D · ΔE 10.2

Black Knight

#303536 · ΔE 10.8

Pacific Sea Teal

#274043 · ΔE 11.2

Black Satin

#313435 · ΔE 11.2

After Midnight

#33383E · ΔE 11.3

Polo Blue

#323A43 · ΔE 11.3

Midnight Dream

#323436 · ΔE 11.4

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 #0F282F?

#0F282F is Black Box, a near-black blue with a cool undertone.

Is #0F282F warm or cool?

Black Box reads cool, which influences how it interacts with surrounding tones and natural light.

What rooms work best with Black Box?

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

What colors pair well with Black Box?

Black Box 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 Black Box?

You can download Black Box 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 Black Box?

The hex code is #0F282F. In RGB it's 15, 40, 47, and in HSL it's 193°, 52%, 12%.

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