NEUTRALS

Otto's Boy

#59555A

RGB 89, 85, 90 · HSL 288°, 3%, 34% · CMYK 1, 6, 0, 65

Otto's Boy is #59555A in HEX — rgb(89, 85, 90), hsl(288°, 3%, 34%), cmyk(1%, 6%, 0%, 65%).

Otto's Boy pulls into the rich end of the neutrals spectrum — HSL 288°, 3%, 34%. 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#59555A

RGB89, 85, 90

HSL288°, 3%, 34%

HSV288°, 6%, 35%

CMYK1, 6, 0, 65

Decimal5854554

CSS RGBrgb(89, 85, 90)

CSS HSLhsl(288, 3%, 34%)

Paint Matches — this color across 16 brands

Dulux

Otto's Boy SG6B7

Exact match

Vista Paint

Zuli K-769

ΔE 1.8 · #5D585B

Behr

Dark Shadows MQ5-2

ΔE 2.3 · #5B5A60

PPG

Gray Flannel 1013-6

ΔE 2.7 · #585960

Benjamin Moore

Mythic CSP-510

ΔE 2.8 · #605A61

Valspar

Muskeg Grey 4005-2C

ΔE 2.8 · #545659

Sherwin-Williams

Midnight SW6264

ΔE 3 · #5D5962

Kilz

Motor Gray TB-38

ΔE 3.2 · #545658

Dunn-Edwards

Edge of Black DE6349

ΔE 3.4 · #54585E

Dutch Boy

Seal of Grey VS-9301

ΔE 3.6 · #575757

Hallman-Lindsay

Smokescreen 556

ΔE 4.6 · #5E5755

Colorhouse

Metal .05 Metal-05

ΔE 5.3 · #535654

IKEA

IKEA152 152

ΔE 6.1 · #494F50

RAL

Graphite Grey 7024

ΔE 6.1 · #474A51

Farrow & Ball

Railings 31

ΔE 7 · #45484B

Kobra

Red 17

ΔE 12.6 · #583F40

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 MasstoneViolet UndertoneBlue

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

Color Theory

Complementary

#59555A

#555954

Analogous

#565459

#59555A

#595458

Triadic

#59555A

#595854

#545958

Split-Complementary

#59555A

#585954

#545956

Tetradic

#59555A

#595654

#555954

#545859

Monochromatic

#0D0C0D

#312F32

#59555A

#7F7981

#A5A0A6

Rectangle

#59555A

#595455

#555954

#545958

Compound

#59555A

#595458

#555954

#545956

Variations

Lighter

#7B757C

#9C979D

#C5C3C5

Darker

#474348

#312E31

#1C1B1D

Saturation

#575657

#585459

#712A83

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

7.31:1

AAA

vs Black

2.87:1

Fail

Deuteranopia

#59555A

#56575A

Original → Simulated

Protanopia

#59555A

#565659

Original → Simulated

Tritanopia

#59555A

#585656

Original → Simulated

Color Psychology

Quiet · Versatile

Otto's Boy 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

#826C5F

Warm Bulb 2700K

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

#59555A

Daylight 5500K

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

#6F7183

Cool Bulb 6500K

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

Pairs With

#EBEAEB

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.

#3F5C37

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: #59555A;

CSS — background

background-color: #59555A;

CSS Variable

--color-otto's-boy: #59555A;

Tailwind v3 — config

colors: { 'otto's-boy': '#59555A' }

Tailwind — arbitrary

bg-[#59555A] text-[#59555A]

SCSS

$otto's-boy: #59555A;

Similar Colors

Mythic

#5F5960 · ΔE 2.4

Deep Space

#52565A · ΔE 3.4

Temptation

#54585C · ΔE 3.4

Almost Black

#4F4E53 · ΔE 3.5

Gray

#585858 · ΔE 3.6

Ambler Slate

#57595A · ΔE 3.7

Westcott Navy

#4E5357 · ΔE 4.2

Iron Mountain

#575553 · ΔE 4.4

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 #59555A?

#59555A is Otto's Boy, a deep neutral with a cool undertone.

Is #59555A warm or cool?

Otto's Boy reads cool, which influences how it interacts with surrounding tones and natural light.

What rooms work best with Otto's Boy?

Otto's Boy works well in living rooms, bedrooms, kitchens. Designers typically use it for main walls, trim, accents.

What colors pair well with Otto's Boy?

Otto's Boy 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 Otto's Boy?

You can download Otto's Boy 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 Otto's Boy?

The hex code is #59555A. In RGB it's 89, 85, 90, and in HSL it's 288°, 3%, 34%.

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