NEUTRALS

Blueberry Tart

#3F4050

RGB 63, 64, 80 · HSL 236°, 12%, 28% · CMYK 21, 20, 0, 69

Blueberry Tart is #3F4050 in HEX — rgb(63, 64, 80), hsl(236°, 12%, 28%), cmyk(21%, 20%, 0%, 69%).

Blueberry Tart pulls into the deep end of the neutrals spectrum — HSL 236°, 12%, 28%. 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#3F4050

RGB63, 64, 80

HSL236°, 12%, 28%

HSV236°, 21%, 31%

CMYK21, 20, 0, 69

Decimal4145232

CSS RGBrgb(63, 64, 80)

CSS HSLhsl(236, 12%, 28%)

Paint Matches — this color across 16 brands

Benjamin Moore

Blackberry CC-962

ΔE 1.1 · #404251

Dulux

Knighthood S42A8

ΔE 1.7 · #3C4052

Behr

Black Elegance N570-7

ΔE 1.7 · #3C3F4D

Vista Paint

Pantry Plum K-88

ΔE 2.1 · #3D3F4C

Hallman-Lindsay

Jazlyn 1285

ΔE 2.8 · #464152

Valspar

Blue Coal 4011-3

ΔE 3.2 · #414450

PPG

Blackberry 1172-7 · 13-21

ΔE 3.9 · #4A4354

Sherwin-Williams

Charcoal Blue SW2739

ΔE 3.9 · #3D4450

Dunn-Edwards

Old Mill DEA185

ΔE 4 · #343B4E

IKEA

IKEA163 163

ΔE 5.3 · #423A45

Kilz

Blue Galaxy RB100-02

ΔE 5.4 · #41445C

RAL

Slate Grey 7015

ΔE 5.5 · #434750

Kobra

Blue 31

ΔE 7 · #334059

Farrow & Ball

Paean Black 294

ΔE 7.4 · #494248

Colorhouse

Metal .06 Metal-06

ΔE 10.4 · #3F4647

Dutch Boy

Seal of Grey VS-9301

ΔE 14 · #575757

Light Reflectance & Undertone

Light Reflectance Value (LRV)

5/100

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 MasstoneBlue UndertoneViolet

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

Color Theory

Complementary

#3F4050

#504F3F

Analogous

#3F4950

#3F4050

#463F50

Triadic

#3F4050

#503F40

#40503F

Split-Complementary

#3F4050

#50463F

#49503F

Tetradic

#3F4050

#503F49

#504F3F

#3F5046

Monochromatic

#0B0B0E

#1D1E25

#3F4050

#60627B

#8789A1

Rectangle

#3F4050

#4F3F50

#504F3F

#40503F

Compound

#3F4050

#463F50

#504F3F

#49503F

Variations

Lighter

#5F6179

#86879C

#B9BAC4

Darker

#323340

#22232C

#14141A

Saturation

#45454A

#3F4050

#1F256F

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

10.19:1

AAA

vs Black

2.06:1

Fail

Deuteranopia

#3F4050

#3D4150

Original → Simulated

Protanopia

#3F4050

#40404E

Original → Simulated

Tritanopia

#3F4050

#3E4341

Original → Simulated

Color Psychology

Quiet · Versatile

Blueberry Tart 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

#6F5D57

Warm Bulb 2700K

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

#3F4050

Daylight 5500K

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

#5C627B

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.

#4C4A2E

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: #3F4050;

CSS — background

background-color: #3F4050;

CSS Variable

--color-blueberry-tart: #3F4050;

Tailwind v3 — config

colors: { 'blueberry-tart': '#3F4050' }

Tailwind — arbitrary

bg-[#3F4050] text-[#3F4050]

SCSS

$blueberry-tart: #3F4050;

Similar Colors

Blackberry Punch

#3F4150 · ΔE 0.9

Deep Mulberry

#3C3845 · ΔE 4.2

Evening Sky

#464956 · ΔE 4.3

Approaching Storm

#4B4A5C · ΔE 4.8

Plum Royale

#453C50 · ΔE 5.0

Deep Royal

#2F394B · ΔE 5.3

Wood Violet

#504C5B · ΔE 6.0

Hale Navy

#434B56 · ΔE 6.1

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 #3F4050?

#3F4050 is Blueberry Tart, a deep neutral with a cool undertone.

Is #3F4050 warm or cool?

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

What rooms work best with Blueberry Tart?

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

What colors pair well with Blueberry Tart?

Blueberry Tart 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 Blueberry Tart?

You can download Blueberry Tart 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 Blueberry Tart?

The hex code is #3F4050. In RGB it's 63, 64, 80, and in HSL it's 236°, 12%, 28%.

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