NEUTRALS

Stone Cold

#555555

RGB 85, 85, 85 · HSL 0°, 0%, 33% · CMYK 0, 0, 0, 67

Stone Cold is #555555 in HEX — rgb(85, 85, 85), hsl(0°, 0%, 33%), cmyk(0%, 0%, 0%, 67%).

Stone Cold pulls into the rich end of the neutrals spectrum — HSL 0°, 0%, 33%. 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#555555

RGB85, 85, 85

HSL0°, 0%, 33%

HSV0°, 0%, 33%

CMYK0, 0, 0, 67

Decimal5592405

CSS RGBrgb(85, 85, 85)

CSS HSLhsl(0, 0%, 33%)

Paint Matches — this color across 16 brands

Dutch Boy

Seal of Grey VS-9301

ΔE 0.8 · #575757

Behr

Maximum Gray QE-62

ΔE 0.8 · #555657

Dulux

Waitara Beach NZ10G7

ΔE 1.1 · #545657

Benjamin Moore

Gray 2121-10

ΔE 1.3 · #585858

Sherwin-Williams

Peppercorn SW7674

ΔE 1.3 · #585858

Dunn-Edwards

Jet DE6378

ΔE 1.4 · #575654

Kilz

Motor Gray TB-38

ΔE 1.5 · #545658

Colorhouse

Metal .05 Metal-05

ΔE 1.8 · #535654

Valspar

Ebony Field 4004-2C

ΔE 2 · #575552

PPG

Zombie 1010-7

ΔE 2.4 · #595A5C

RAL

Traffic Grey B 7043

ΔE 3 · #4E5452

Vista Paint

Charcoal Shadow K-809

ΔE 3.2 · #565B5D

Hallman-Lindsay

Zen Retreat 535

ΔE 3.3 · #5B5D5C

IKEA

IKEA152 152

ΔE 4 · #494F50

Farrow & Ball

Studio Green 93

ΔE 5.5 · #464C49

Kobra

Green 37

ΔE 10.1 · #515545

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

TemperatureNeutral MasstoneRed UndertonePink

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

Color Theory

Complementary

#555555

#545454

Analogous

#545454

#555555

#545454

Triadic

#555555

#545454

Split-Complementary

#555555

#545454

Tetradic

#555555

#545454

Monochromatic

#0D0D0D

#2E2E2E

#555555

#7A7A7A

#A1A1A1

Rectangle

#555555

#545454

Compound

#555555

#545454

Variations

Lighter

#767676

#989898

#C3C3C3

Darker

#434343

#2E2E2E

#1B1B1B

Saturation

#545454

#7E2A2A

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

7.46:1

AAA

vs Black

2.82:1

Fail

Deuteranopia

#555555

Original → Simulated

Protanopia

#555555

Original → Simulated

Tritanopia

#555555

Original → Simulated

Color Psychology

Quiet · Versatile

Stone Cold 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

#7F6C5B

Warm Bulb 2700K

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

#555555

Daylight 5500K

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

#6C717F

Cool Bulb 6500K

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

Pairs With

#EBEBEB

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.

#365959

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: #555555;

CSS — background

background-color: #555555;

CSS Variable

--color-stone-cold: #555555;

Tailwind v3 — config

colors: { 'stone-cold': '#555555' }

Tailwind — arbitrary

bg-[#555555] text-[#555555]

SCSS

$stone-cold: #555555;

Similar Colors

Gray

#585858 · ΔE 1.3

Iron Mountain

#575553 · ΔE 1.5

Ambler Slate

#57595A · ΔE 1.8

Deep Space

#52565A · ΔE 3.0

Temptation

#54585C · ΔE 3.1

Westcott Navy

#4E5357 · ΔE 3.4

Nightfall

#4B4E4E · ΔE 3.5

French Beret

#4C4F52 · ΔE 3.5

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 #555555?

#555555 is Stone Cold, a deep neutral with a cool undertone.

Is #555555 warm or cool?

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

What rooms work best with Stone Cold?

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

What colors pair well with Stone Cold?

Stone Cold 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 Stone Cold?

You can download Stone Cold 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 Stone Cold?

The hex code is #555555. In RGB it's 85, 85, 85, and in HSL it's 0°, 0%, 33%.

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