GREENS

Blue Green

#1F3A3D

RGB 31, 58, 61 · HSL 186°, 33%, 18% · CMYK 49, 5, 0, 76

Blue Green is #1F3A3D in HEX — rgb(31, 58, 61), hsl(186°, 33%, 18%), cmyk(49%, 5%, 0%, 76%).

Blue Green pulls into the deep end of the greens spectrum — HSL 186°, 33%, 18%. The muted saturation makes it quiet but present, and the hue reads cool. 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#1F3A3D

RGB31, 58, 61

HSL186°, 33%, 18%

HSV186°, 49%, 24%

CMYK49, 5, 0, 76

Decimal2046525

CSS RGBrgb(31, 58, 61)

CSS HSLhsl(186, 33%, 18%)

Paint Matches — this color across 16 brands

RAL

Blue Green 6004

Exact match

Dulux

Cruel Sea S29A9

ΔE 2.3 · #213738

Sherwin-Williams

Cascades SW7623

ΔE 3 · #273E3E

Benjamin Moore

Pacific 2049-10

ΔE 3.3 · #284144

Behr

Black Sable 730F-7

ΔE 3.4 · #2A4042

Hallman-Lindsay

Atlantic Waves 473

ΔE 3.7 · #264243

Vista Paint

Cape Royal K-856

ΔE 4.2 · #294344

Dunn-Edwards

Refined Green DEA181

ΔE 8.1 · #384543

Colorhouse

Nourish .06 Nourish-06

ΔE 8.8 · #313536

PPG

Midnight Hour 1038-7

ΔE 9.4 · #3B484F

Kilz

Night Magic RM230

ΔE 9.5 · #3C4348

Dutch Boy

Dark Green D-6751

ΔE 10.2 · #214136

Valspar

Deep River Green 5010-3

ΔE 10.7 · #404E50

Kobra

Black 44

ΔE 11.1 · #383737

Farrow & Ball

Hague Blue 30

ΔE 11.1 · #3D4E57

IKEA

IKEA186 186

ΔE 11.5 · #302F2F

Light Reflectance & Undertone

Light Reflectance Value (LRV)

4/100

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

TemperatureCool MasstoneTeal UndertoneGreen

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

Color Theory

Complementary

#1F3A3D

#3D221F

Analogous

#1F3D31

#1F3A3D

#1F2B3D

Triadic

#1F3A3D

#3D1F3A

#3A3D1F

Split-Complementary

#1F3A3D

#3D1F2B

#3D311F

Tetradic

#1F3A3D

#311F3D

#3D221F

#2B3D1F

Monochromatic

#091011

#1F3A3D

#386A70

#529BA3

Rectangle

#1F3A3D

#221F3D

#3D221F

#3A3D1F

Compound

#1F3A3D

#1F2B3D

#3D221F

#3D311F

Variations

Lighter

#3B6F75

#5E9EA5

#A5C3C7

Darker

#182F31

#102122

#091314

Saturation

#293232

#1F3A3D

#0F464C

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

12.13:1

AAA

vs Black

1.73:1

Fail

Deuteranopia

#1F3A3D

#30333E

Original → Simulated

Protanopia

#1F3A3D

#36363D

Original → Simulated

Tritanopia

#1F3A3D

#203A39

Original → Simulated

Color Psychology

Calm · Restorative

Blue 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

#575849

Warm Bulb 2700K

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

#1F3A3D

Daylight 5500K

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

#445D6D

Cool Bulb 6500K

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

Pairs With

#E9ECEC

Trim

Matched off-white

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

#F7F8F8

Ceiling

Whisper tint

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

#3B2421

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: #1F3A3D;

CSS — background

background-color: #1F3A3D;

CSS Variable

--color-blue-green: #1F3A3D;

Tailwind v3 — config

colors: { 'blue-green': '#1F3A3D' }

Tailwind — arbitrary

bg-[#1F3A3D] text-[#1F3A3D]

SCSS

$blue-green: #1F3A3D;

Similar Colors

Pacific Sea Teal

#274043 · ΔE 2.9

Salamander

#2F3E3E · ΔE 5.1

Miramichi

#30484A · ΔE 6.4

Bavarian Forest

#1D4543 · ΔE 6.9

Regent Green

#364042 · ΔE 7.3

Dark Harbor

#1E4850 · ΔE 7.4

River Blue

#254952 · ΔE 7.7

Black Forest Green

#242E2C · ΔE 8.1

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 #1F3A3D?

#1F3A3D is Blue Green, a near-black green with a cool undertone.

Is #1F3A3D warm or cool?

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

What rooms work best with Blue Green?

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

What colors pair well with Blue Green?

Blue 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 Blue Green?

You can download Blue 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 Blue Green?

The hex code is #1F3A3D. In RGB it's 31, 58, 61, and in HSL it's 186°, 33%, 18%.

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