BLACKS

Coal Mine

#220033

RGB 34, 0, 51 · HSL 280°, 100%, 10% · CMYK 33, 100, 0, 80

Coal Mine is #220033 in HEX — rgb(34, 0, 51), hsl(280°, 100%, 10%), cmyk(33%, 100%, 0%, 80%).

Coal Mine pulls into the deep end of the blacks spectrum — HSL 280°, 100%, 10%. The saturated saturation makes it bold and immediate, and the hue reads cool. In interior projects it shines on doors, frames, hardware, accent walls — for definition and gravitas. Reads best alongside warm white walls, oak, brass, leather.

Color Codes

HEX#220033

RGB34, 0, 51

HSL280°, 100%, 10%

HSV280°, 100%, 20%

CMYK33, 100, 0, 80

Decimal2228275

CSS RGBrgb(34, 0, 51)

CSS HSLhsl(280, 100%, 10%)

Paint Matches — this color across 16 brands

RAL

Ultramarine Blue 5002

ΔE 15.9 · #20214F

Behr

Interlude S-H-690

ΔE 17.7 · #382A59

Dulux

New Purple S45F9

ΔE 22.9 · #4D3358

Vista Paint

Joyous Song C-1186

ΔE 24.1 · #5A345C

Benjamin Moore

Purplicious CSP-465

ΔE 24.3 · #4E3455

Hallman-Lindsay

Joyous Song 1187

ΔE 24.8 · #5B365E

Sherwin-Williams

Concord Grape SW6559

ΔE 25.7 · #443757

Kilz

Beetroot Purple TB-100

ΔE 26 · #392434

Colorhouse

Petal .07 Petal-07

ΔE 26.9 · #652F53

Valspar

Sumptuous Purple 4010-10

ΔE 28.2 · #564371

Dunn-Edwards

Purple Odyssey DEA143

ΔE 28.4 · #643E65

Dutch Boy

Royal Blue D-6740

ΔE 29.2 · #1D375C

PPG

Royal Indigo 1174-7

ΔE 30.5 · #4E4260

Kobra

Blue 31

ΔE 34 · #334059

IKEA

IKEA163 163

ΔE 35 · #423A45

Farrow & Ball

Pelt 254

ΔE 36.6 · #50414C

Light Reflectance & Undertone

Light Reflectance Value (LRV)

1/100

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

TemperatureNeutral MasstoneViolet UndertoneBlue

Reads as a neutral violet with a blue undertone showing through, especially in daylight. Pair trim and adjacent colours to either calm or amplify that undertone.

Color Theory

Complementary

#220033

#113300

Analogous

#080033

#220033

#33002A

Triadic

#220033

#332200

#003322

Split-Complementary

#220033

#2A3300

#003309

Tetradic

#220033

#330900

#113300

#002A33

Monochromatic

#11001A

#220033

#550080

#8800CC

Rectangle

#220033

#330011

#113300

#003322

Compound

#220033

#33002A

#113300

#003309

Variations

Lighter

#5F008F

#9712D9

#C176E7

Darker

#1B0029

#13001C

#0B0010

Saturation

#1C1221

#220033

Interior Use

Best Rooms

libraries, home offices, dramatic accents

Best Uses

doors, frames, hardware, accent walls

Pairs With

warm white walls, oak, brass, leather

Accessibility (WCAG)

vs White

18.82:1

AAA

vs Black

1.12:1

Fail

Deuteranopia

#220033

#061733

Original → Simulated

Protanopia

#220033

#09092F

Original → Simulated

Tritanopia

#220033

#1E110A

Original → Simulated

Color Psychology

Dramatic · Grounding

Coal Mine reads as punctuation — it defines edges, draws a line under a room, and makes surrounding colors look more saturated. Use it sparingly on doors, frames, hardware, and the occasional accent wall.

SymbolismPower, sophistication, depth

PersonalityConfident, anchoring, definitive

dramaframedoortrimaccentdefinition

How it looks under different light

#592D41

Warm Bulb 2700K

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

#220033

Daylight 5500K

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

#463266

Cool Bulb 6500K

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

Pairs With

#ECE7EE

Trim

Matched off-white

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

#F8F7F8

Ceiling

Whisper tint

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

#225309

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: #220033;

CSS — background

background-color: #220033;

CSS Variable

--color-coal-mine: #220033;

Tailwind v3 — config

colors: { 'coal-mine': '#220033' }

Tailwind — arbitrary

bg-[#220033] text-[#220033]

SCSS

$coal-mine: #220033;

Similar Colors

Purplicious

#4D3354 · ΔE 23.9

Midnight Navy

#333356 · ΔE 24.6

Gentle Violet

#523C68 · ΔE 25.5

Blue Grotto

#353963 · ΔE 25.9

Admiral Blue

#2B3762 · ΔE 26.0

Exotic Purple

#43334D · ΔE 26.1

Grape Gum

#413D6D · ΔE 26.1

Majestic Violet

#3A3450 · ΔE 26.4

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 #220033?

#220033 is Coal Mine, a near-black black with a cool undertone.

Is #220033 warm or cool?

Coal Mine reads cool, which influences how it interacts with surrounding tones and natural light.

What rooms work best with Coal Mine?

Coal Mine works well in libraries, home offices, dramatic accents. Designers typically use it for doors, frames, hardware, accent walls.

What colors pair well with Coal Mine?

Coal Mine pairs naturally with warm white walls, oak, brass, leather. Its complementary color is also a strong contrast option for accents.

Where can I download Coal Mine?

You can download Coal Mine 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 Coal Mine?

The hex code is #220033. In RGB it's 34, 0, 51, and in HSL it's 280°, 100%, 10%.

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