BLUES

Blue Regal

#303148

RGB 48, 49, 72 · HSL 237°, 20%, 24% · CMYK 33, 32, 0, 72

Blue Regal is #303148 in HEX — rgb(48, 49, 72), hsl(237°, 20%, 24%), cmyk(33%, 32%, 0%, 72%).

Blue Regal pulls into the deep end of the blues spectrum — HSL 237°, 20%, 24%. 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#303148

RGB48, 49, 72

HSL237°, 20%, 24%

HSV237°, 33%, 28%

CMYK33, 32, 0, 72

Decimal3158344

CSS RGBrgb(48, 49, 72)

CSS HSLhsl(237, 20%, 24%)

Paint Matches — this color across 16 brands

Dulux

Blue Regal S43D9

Exact match

Kilz

Ruling Royalty TB-50

ΔE 1.1 · #313048

Benjamin Moore

Old 2063-10

ΔE 3.7 · #2F364A

RAL

Violet Blue 5000

ΔE 4.5 · #2A2E4B

Behr

Limo-scene N560-7

ΔE 4.9 · #333B51

Dunn-Edwards

Old Mill DEA185

ΔE 5.5 · #343B4E

Sherwin-Williams

Majestic Purple SW6545

ΔE 6.7 · #3B3C5A

PPG

Victory Blue 1165-7

ΔE 6.8 · #3A405A

Vista Paint

Star-Studded C-619

ΔE 7.1 · #313F58

Kobra

Blue 31

ΔE 7.3 · #334059

Hallman-Lindsay

Plum Island historic-plum-island

ΔE 8.1 · #463C4E

Valspar

Twilight Purple 4010-2

ΔE 9.4 · #3E3B46

IKEA

IKEA163 163

ΔE 9.9 · #423A45

Dutch Boy

Royal Blue D-6740

ΔE 11.1 · #1D375C

Farrow & Ball

Pelt 254

ΔE 13.4 · #50414C

Colorhouse

Nourish .06 Nourish-06

ΔE 15.1 · #313536

Light Reflectance & Undertone

Light Reflectance Value (LRV)

3/100

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

#303148

#494831

Analogous

#313E49

#303148

#3C3149

Triadic

#303148

#493132

#324931

Split-Complementary

#303148

#493C31

#3E4931

Tetradic

#303148

#49313E

#494831

#31493C

Monochromatic

#0A0A0F

#12131C

#303148

#505277

#7275A1

Rectangle

#303148

#483149

#494831

#324931

Compound

#303148

#3C3149

#494831

#3E4931

Variations

Lighter

#505278

#77799E

#B2B3C5

Darker

#27283B

#1A1B29

#0F1018

Saturation

#3A3A41

#313249

#181C62

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

12.66:1

AAA

vs Black

1.66:1

Fail

Deuteranopia

#303148

#2C3348

Original → Simulated

Protanopia

#303148

#313145

Original → Simulated

Tritanopia

#303148

#2E3533

Original → Simulated

Color Psychology

Focused · Cooling

Blue Regal 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

#635151

Warm Bulb 2700K

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

#303148

Daylight 5500K

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

#515675

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.

#F7F7F8

Ceiling

Whisper tint

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

#414027

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: #303148;

CSS — background

background-color: #303148;

CSS Variable

--color-blue-regal: #303148;

Tailwind v3 — config

colors: { 'blue-regal': '#303148' }

Tailwind — arbitrary

bg-[#303148] text-[#303148]

SCSS

$blue-regal: #303148;

Similar Colors

Old Navy

#2E3549 · ΔE 3.5

Majestic Violet

#3A3450 · ΔE 4.8

Deep Royal

#2F394B · ΔE 5.9

Plum Royale

#453C50 · ΔE 7.3

Exotic Purple

#43334D · ΔE 7.7

Deep Mulberry

#3C3845 · ΔE 7.8

Midnight Navy

#333356 · ΔE 8.1

North Sea

#2B3B4C · 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 #303148?

#303148 is Blue Regal, a deep blue with a cool undertone.

Is #303148 warm or cool?

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

What rooms work best with Blue Regal?

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

What colors pair well with Blue Regal?

Blue Regal 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 Blue Regal?

You can download Blue Regal 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 Regal?

The hex code is #303148. In RGB it's 48, 49, 72, and in HSL it's 237°, 20%, 24%.

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