GREENS

Castellan Green

#455440

RGB 69, 84, 64 · HSL 105°, 14%, 29% · CMYK 18, 0, 24, 67

Castellan Green is #455440 in HEX — rgb(69, 84, 64), hsl(105°, 14%, 29%), cmyk(18%, 0%, 24%, 67%).

Castellan Green pulls into the deep end of the greens spectrum — HSL 105°, 14%, 29%. The neutral saturation makes it near-neutral and forgiving, and the hue reads warm. In interior projects it shines on bedrooms, bathrooms, libraries — for grounding, restorative spaces. Reads best alongside soft white walls, oak floors, brass, warm clay accents.

Color Codes

HEX#455440

RGB69, 84, 64

HSL105°, 14%, 29%

HSV105°, 24%, 33%

CMYK18, 0, 24, 67

Decimal4543552

CSS RGBrgb(69, 84, 64)

CSS HSLhsl(105, 14%, 29%)

Paint Matches — this color across 16 brands

Behr

Chard MQ6-49

ΔE 1 · #485541

Sherwin-Williams

Courtyard SW6440

ΔE 2.1 · #475842

PPG

Pine Forest 1134-7

ΔE 2.2 · #415241

Benjamin Moore

Chimichurri CSP-810

ΔE 2.9 · #495342

Kilz

American Pine TB-69

ΔE 3.5 · #495748

RAL

Green Grey 7009

ΔE 3.6 · #4D5645

Vista Paint

Baize C-1411

ΔE 4.2 · #4B5445

Hallman-Lindsay

Baize historic-baize

ΔE 4.2 · #4B5445

Dulux

Spinach Green S23A9

ΔE 4.4 · #455338

Kobra

Green 38

ΔE 5.2 · #415448

Valspar

Wilderness 6009-5

ΔE 6.9 · #476151

Dunn-Edwards

Woodlawn Green DEC779

ΔE 7.5 · #405B50

IKEA

IKEA148 148

ΔE 11.4 · #676450

Farrow & Ball

Studio Green 93

ΔE 11.6 · #464C49

Dutch Boy

Dark Green D-6751

ΔE 12.2 · #214136

Colorhouse

Metal .05 Metal-05

ΔE 12.7 · #535654

Light Reflectance & Undertone

Light Reflectance Value (LRV)

8/100

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 MasstoneGreen UndertoneBlue

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

Color Theory

Complementary

#455440

#4F4054

Analogous

#4F5440

#455440

#405445

Triadic

#455440

#404554

#544045

Split-Complementary

#455440

#454054

#54404F

Tetradic

#455440

#404F54

#4F4054

#544540

Monochromatic

#0C0F0B

#21291F

#455440

#688060

#8FA588

Rectangle

#455440

#40544F

#4F4054

#544045

Compound

#455440

#405445

#4F4054

#54404F

Variations

Lighter

#667E5F

#8C9F85

#BDC6B9

Darker

#374432

#262F22

#161B14

Saturation

#484D47

#455440

#357420

Interior Use

Best Rooms

bedrooms, bathrooms, libraries

Best Uses

main walls, cabinetry, soft furniture

Pairs With

soft white walls, oak floors, brass, warm clay accents

Accessibility (WCAG)

vs White

8.09:1

AAA

vs Black

2.60:1

Fail

Deuteranopia

#455440

#514E41

Original → Simulated

Protanopia

#455440

#525243

Original → Simulated

Tritanopia

#455440

#475152

Original → Simulated

Color Psychology

Calm · Restorative

Castellan Green sits in the part of the spectrum the eye relaxes into. Designers reach for green when a room needs to feel like a refuge — bedrooms, libraries, bathrooms — because it lowers visual blood-pressure without flattening the space.

SymbolismGrowth, balance, nature

PersonalitySteady, grounded, thoughtful

calmnaturerestorativebalancebedroomlibrary

How it looks under different light

#736C4B

Warm Bulb 2700K

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

#455440

Daylight 5500K

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

#60716F

Cool Bulb 6500K

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

Pairs With

#EAEBEA

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.

#472F4F

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: #455440;

CSS — background

background-color: #455440;

CSS Variable

--color-castellan-green: #455440;

Tailwind v3 — config

colors: { 'castellan-green': '#455440' }

Tailwind — arbitrary

bg-[#455440] text-[#455440]

SCSS

$castellan-green: #455440;

Similar Colors

Chimichurri

#485241 · ΔE 2.9

Boreal Forest

#535F4E · ΔE 5.5

Colonial Verdigris

#3E4F33 · ΔE 5.8

Martha's Vineyard

#4D634E · ΔE 6.4

Dakota Shadow

#515D51 · ΔE 6.8

Windsor Green

#484F32 · ΔE 6.9

Vintage Vogue

#565D4F · ΔE 7.0

Backwoods

#586251 · ΔE 7.1

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 #455440?

#455440 is Castellan Green, a deep green with a warm undertone.

Is #455440 warm or cool?

Castellan Green reads warm, which influences how it interacts with surrounding tones and natural light.

What rooms work best with Castellan Green?

Castellan Green works well in bedrooms, bathrooms, libraries. Designers typically use it for main walls, cabinetry, soft furniture.

What colors pair well with Castellan Green?

Castellan Green pairs naturally with soft white walls, oak floors, brass, warm clay accents. Its complementary color is also a strong contrast option for accents.

Where can I download Castellan Green?

You can download Castellan Green 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 Castellan Green?

The hex code is #455440. In RGB it's 69, 84, 64, and in HSL it's 105°, 14%, 29%.

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