GREYS

Comet

#636373

RGB 99, 99, 115 · HSL 240°, 7%, 42% · CMYK 14, 14, 0, 55

Comet is #636373 in HEX — rgb(99, 99, 115), hsl(240°, 7%, 42%), cmyk(14%, 14%, 0%, 55%).

Comet pulls into the rich end of the greys spectrum — HSL 240°, 7%, 42%. The neutral saturation makes it near-neutral and forgiving, and the hue reads cool. In interior projects it shines on walls, soft furniture, hard surfaces — as the project's quiet backbone. Reads best alongside white trim, natural wood, brass, soft black accents.

Color Codes

HEX#636373

RGB99, 99, 115

HSL240°, 7%, 42%

HSV240°, 14%, 45%

CMYK14, 14, 0, 55

Decimal6513523

CSS RGBrgb(99, 99, 115)

CSS HSLhsl(240, 7%, 42%)

Paint Matches — this color across 16 brands

Dulux

Spike S43B6

ΔE 1 · #646271

Behr

Curtain Call N570-5

ΔE 2.2 · #5C6070

Benjamin Moore

Blue 1435 · CC-900

ΔE 2.6 · #5D6375

Dunn-Edwards

Graphite DE5936

ΔE 2.6 · #656579

Valspar

Dark Night 4003-4C

ΔE 2.7 · #5E6576

PPG

Silverado 1172-6 · 13-22

ΔE 2.8 · #6A6472

Vista Paint

Purple Pansies K-41

ΔE 2.9 · #6B6678

Hallman-Lindsay

Muted Mulberry historic-muted-mulberry

ΔE 3.4 · #66626D

IKEA

IKEA156 156

ΔE 4.3 · #676973

Sherwin-Williams

Mesmerize SW6544

ΔE 4.6 · #5D657B

RAL

Pearl Black Berry 4012

ΔE 6.2 · #6C6881

Farrow & Ball

Stiffkey Blue 281

ΔE 7 · #4D5B6A

Kilz

Wine Hour RA290-02

ΔE 7.2 · #5E5871

Colorhouse

Wool .06 Wool-06

ΔE 9.4 · #485761

Dutch Boy

Seal of Grey VS-9301

ΔE 11.1 · #575757

Kobra

Blue 31

ΔE 17.3 · #334059

Light Reflectance & Undertone

Light Reflectance Value (LRV)

13/100

Dark

0 · DarkLight · 100

Soaks up light and feels moody and intimate. Great for studies, dining rooms and accent walls; pair with ample lighting.

Undertone

TemperatureNeutral MasstoneBlue UndertoneViolet

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

Color Theory

Complementary

#636373

#737364

Analogous

#646B73

#636373

#6B6473

Triadic

#636373

#736464

#647364

Split-Complementary

#636373

#736B64

#6B7364

Tetradic

#636373

#73646B

#737364

#64736B

Monochromatic

#1C1C21

#40404A

#636373

#8A8A99

#B3B3BD

Rectangle

#636373

#736473

#737364

#647364

Compound

#636373

#6B6473

#737364

#6B7364

Variations

Lighter

#808091

#A1A1AC

#C9C9CE

Darker

#4F4F5C

#36363F

#202025

Saturation

#69696D

#646473

#3232A4

Interior Use

Best Rooms

living rooms, bedrooms, bathrooms

Best Uses

walls, soft furniture, hard surfaces

Pairs With

white trim, natural wood, brass, soft black accents

Accessibility (WCAG)

vs White

5.89:1

vs Black

3.56:1

AA Large

Deuteranopia

#636373

#606573

Original → Simulated

Protanopia

#636373

#636371

Original → Simulated

Tritanopia

#636373

#626664

Original → Simulated

Color Psychology

Quiet · Versatile

Comet 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

#8A7771

Warm Bulb 2700K

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

#636373

Daylight 5500K

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

#777C96

Cool Bulb 6500K

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

Pairs With

#EAEAEB

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.

#727244

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: #636373;

CSS — background

background-color: #636373;

CSS Variable

--color-comet: #636373;

Tailwind v3 — config

colors: { 'comet': '#636373' }

Tailwind — arbitrary

bg-[#636373] text-[#636373]

SCSS

$comet: #636373;

Similar Colors

Blue Gaspe

#5C6274 · ΔE 2.7

Nightfall Sky

#6F6578 · ΔE 4.7

Andes Summit

#586471 · ΔE 5.1

Amethyst Shadow

#6E7182 · ΔE 5.6

Wild Mulberry

#6B5E6B · ΔE 5.6

Evening Dove

#515A67 · ΔE 6.0

Anchor Gray

#5C6167 · ΔE 6.6

French Violet

#696D86 · ΔE 6.7

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 #636373?

#636373 is Comet, a mid-tone grey with a cool undertone.

Is #636373 warm or cool?

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

What rooms work best with Comet?

Comet works well in living rooms, bedrooms, bathrooms. Designers typically use it for walls, soft furniture, hard surfaces.

What colors pair well with Comet?

Comet pairs naturally with white trim, natural wood, brass, soft black accents. Its complementary color is also a strong contrast option for accents.

Where can I download Comet?

You can download Comet 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 Comet?

The hex code is #636373. In RGB it's 99, 99, 115, and in HSL it's 240°, 7%, 42%.

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