BLUES

Noble Knight

#394D78

RGB 57, 77, 120 · HSL 221°, 36%, 35% · CMYK 53, 36, 0, 53

Noble Knight is #394D78 in HEX — rgb(57, 77, 120), hsl(221°, 36%, 35%), cmyk(53%, 36%, 0%, 53%).

Noble Knight pulls into the rich end of the blues spectrum — HSL 221°, 36%, 35%. The muted saturation makes it quiet but present, 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#394D78

RGB57, 77, 120

HSL221°, 36%, 35%

HSV221°, 53%, 47%

CMYK53, 36, 0, 53

Decimal3755384

CSS RGBrgb(57, 77, 120)

CSS HSLhsl(221, 36%, 35%)

Paint Matches — this color across 16 brands

Dulux

Noble Knight S40E8

ΔE 1.7 · #394F78

PPG

Dragonfly 1162-7

ΔE 2 · #314A76

Kilz

Indigo RH220

ΔE 2.3 · #314973

Behr

Mystical Shade 610F-7

ΔE 3.5 · #32466E

Valspar

Classic Royal Blue 4009-8

ΔE 3.8 · #465380

Dunn-Edwards

Slumber DE5860

ΔE 4.3 · #2D517C

Sherwin-Williams

Dignified SW6538

ΔE 4.7 · #3B496D

Benjamin Moore

Blueberry 812

ΔE 4.9 · #345284

Vista Paint

Midnight Interlude K-1243

ΔE 4.9 · #30466B

Hallman-Lindsay

Newport Indigo historic-newport-indigo

ΔE 7.8 · #313D6C

RAL

Brillant Blue 5007

ΔE 7.9 · #3E5F8A

IKEA

IKEA122 122

ΔE 8.2 · #3A5170

Kobra

Blue 30

ΔE 8.5 · #195584

Dutch Boy

Delft Blue 7447

ΔE 10.4 · #003B67

Farrow & Ball

Pitch Blue 220

ΔE 15.7 · #636E8F

Colorhouse

Petal .05 Petal-05

ΔE 19.1 · #1F4992

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

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

#394D78

#796539

Analogous

#396E79

#394D78

#453979

Triadic

#394D78

#79394D

#4D7939

Split-Complementary

#394D78

#794539

#6E7939

Tetradic

#394D78

#79396E

#796539

#397945

Monochromatic

#080B11

#212C45

#394D78

#526FAD

#869AC6

Rectangle

#394D78

#653979

#796539

#4D7939

Compound

#394D78

#453979

#796539

#6E7939

Variations

Lighter

#4E6AA6

#7D90BA

#B6C0D4

Darker

#2C3E62

#1E2A45

#111828

Saturation

#505663

#394D79

#1D4396

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

8.38:1

AAA

vs Black

2.51:1

Fail

Deuteranopia

#394D78

#3A4C78

Original → Simulated

Protanopia

#394D78

#4A4A74

Original → Simulated

Tritanopia

#394D78

#33554F

Original → Simulated

Color Psychology

Focused · Cooling

Noble Knight 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

#6A6675

Warm Bulb 2700K

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

#394D78

Daylight 5500K

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

#576B99

Cool Bulb 6500K

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

Pairs With

#E9EAEC

Trim

Matched off-white

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

#F7F7F8

Ceiling

Whisper tint

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

#635435

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: #394D78;

CSS — background

background-color: #394D78;

CSS Variable

--color-noble-knight: #394D78;

Tailwind v3 — config

colors: { 'noble-knight': '#394D78' }

Tailwind — arbitrary

bg-[#394D78] text-[#394D78]

SCSS

$noble-knight: #394D78;

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#184A7C · ΔE 7.1

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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 #394D78?

#394D78 is Noble Knight, a deep blue with a cool undertone.

Is #394D78 warm or cool?

Noble Knight reads cool, which influences how it interacts with surrounding tones and natural light.

What rooms work best with Noble Knight?

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

What colors pair well with Noble Knight?

Noble Knight 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 Noble Knight?

You can download Noble Knight 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 Noble Knight?

The hex code is #394D78. In RGB it's 57, 77, 120, and in HSL it's 221°, 36%, 35%.

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