BLUES

Quantum Blue

#6E799B

RGB 110, 121, 155 · HSL 225°, 18%, 52% · CMYK 29, 22, 0, 39

Quantum Blue is #6E799B in HEX — rgb(110, 121, 155), hsl(225°, 18%, 52%), cmyk(29%, 22%, 0%, 39%).

Quantum Blue pulls into the mid-tone end of the blues spectrum — HSL 225°, 18%, 52%. The neutral saturation makes it near-neutral and forgiving, and the hue reads cool. In interior projects it shines on bedrooms, bathrooms, home offices — for calm, focused environments. Reads best alongside warm white trim, oak or walnut, brass or matte black hardware.

Color Codes

HEX#6E799B

RGB110, 121, 155

HSL225°, 18%, 52%

HSV225°, 29%, 61%

CMYK29, 22, 0, 39

Decimal7240091

CSS RGBrgb(110, 121, 155)

CSS HSLhsl(225, 18%, 52%)

Paint Matches — this color across 16 brands

Dulux

Quantum Blue S41E5

ΔE 1 · #6D7A9B

Vista Paint

Premiere Purple K-82

ΔE 1.9 · #747C9F

Dunn-Edwards

Bossa Nova Blue DE5914

ΔE 2.3 · #767C9E

Valspar

Bedtime Story 4003-8B

ΔE 3.3 · #6A7BA2

Behr

Solitaire N560-5

ΔE 4.1 · #6E79A2

Farrow & Ball

Pitch Blue 220

ΔE 4.4 · #636E8F

Hallman-Lindsay

Madonna Blue 590

ΔE 4.5 · #5F7799

RAL

Pigeon Blue 5014

ΔE 5.3 · #606E8C

Sherwin-Williams

Searching Blue SW6536

ΔE 5.5 · #6C7F9A

Benjamin Moore

Yin 824

ΔE 5.5 · #6B83A9

PPG

Blueberry Patch 1167-6

ΔE 5.6 · #627099

Kilz

Harbor Town TB-49

ΔE 6 · #5A779B

IKEA

IKEA086 86

ΔE 8.6 · #748DAC

Kobra

Violet 24

ΔE 13.8 · #9B8CB5

Dutch Boy

Celestial Horizon DCP-0589

ΔE 16.7 · #8FA4BF

Colorhouse

Water .05 Water-05

ΔE 19.9 · #82979D

Light Reflectance & Undertone

Light Reflectance Value (LRV)

19/100

Dark

0 · DarkLight · 100

Soaks up light and feels moody and intimate. Great for studies, dining rooms and accent walls; pair with ample lighting.

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

#6E799B

#9B906F

Analogous

#6F909B

#6E799B

#7A6F9B

Triadic

#6E799B

#9B6F7A

#7A9B6F

Split-Complementary

#6E799B

#9B7A6F

#909B6F

Tetradic

#6E799B

#9B6F90

#9B906F

#6F9B7A

Monochromatic

#2E3342

#4D566F

#6E799B

#9CA3BA

#C9CDD9

Rectangle

#6E799B

#906F9B

#9B906F

#7A9B6F

Compound

#6E799B

#7A6F9B

#9B906F

#909B6F

Variations

Lighter

#8B94AF

#AAB0C1

#CFD1DA

Darker

#56607E

#3A4257

#222633

Saturation

#7E818B

#6F7A9B

#3C60CD

Interior Use

Best Rooms

bedrooms, bathrooms, home offices

Best Uses

main walls, ceilings, trim, cabinetry

Pairs With

warm white trim, oak or walnut, brass or matte black hardware

Accessibility (WCAG)

vs White

4.31:1

AA Large

vs Black

4.87:1

Deuteranopia

#6E799B

#6E799C

Original → Simulated

Protanopia

#6E799B

#777797

Original → Simulated

Tritanopia

#6E799B

#6B7F7B

Original → Simulated

Color Psychology

Focused · Cooling

Quantum Blue lowers the temperature of a room — useful in south-facing rooms that overheat visually, and in home offices where you want a clear head. Pair with warm wood and brass to keep it from reading clinical.

SymbolismTrust, depth, stability

PersonalityClear-headed, dependable, contemplative

focustrustcalmofficebedroomdepth

How it looks under different light

#92878F

Warm Bulb 2700K

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

#6E799B

Daylight 5500K

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

#7F8CB4

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.

#8D7F55

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 · Trim · Soft furniture

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: #6E799B;

CSS — background

background-color: #6E799B;

CSS Variable

--color-quantum-blue: #6E799B;

Tailwind v3 — config

colors: { 'quantum-blue': '#6E799B' }

Tailwind — arbitrary

bg-[#6E799B] text-[#6E799B]

SCSS

$quantum-blue: #6E799B;

Similar Colors

Yin Yang

#6A82A8 · ΔE 5.3

Queen's Wreath

#7C819D · ΔE 5.3

Stratford Blue

#7685A1 · ΔE 5.9

Blue Nova

#5B6D92 · ΔE 5.9

French Violet

#696D86 · ΔE 7.1

Spring Purple

#8782A6 · ΔE 7.5

Blue Heron

#5C6A85 · ΔE 7.6

In the Twilight

#747D92 · ΔE 7.8

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 #6E799B?

#6E799B is Quantum Blue, a mid-tone blue with a cool undertone.

Is #6E799B warm or cool?

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

What rooms work best with Quantum Blue?

Quantum Blue works well in bedrooms, bathrooms, home offices. Designers typically use it for main walls, ceilings, trim, cabinetry.

What colors pair well with Quantum Blue?

Quantum Blue pairs naturally with warm white trim, oak or walnut, brass or matte black hardware. Its complementary color is also a strong contrast option for accents.

Where can I download Quantum Blue?

You can download Quantum Blue 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 Quantum Blue?

The hex code is #6E799B. In RGB it's 110, 121, 155, and in HSL it's 225°, 18%, 52%.

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