BLUES

Gibraltar Sea

#133A54

RGB 19, 58, 84 · HSL 204°, 63%, 20% · CMYK 77, 31, 0, 67

Gibraltar Sea is #133A54 in HEX — rgb(19, 58, 84), hsl(204°, 63%, 20%), cmyk(77%, 31%, 0%, 67%).

Gibraltar Sea pulls into the deep end of the blues spectrum — HSL 204°, 63%, 20%. The balanced saturation makes it confident without overpowering, 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#133A54

RGB19, 58, 84

HSL204°, 63%, 20%

HSV204°, 77%, 33%

CMYK77, 31, 0, 67

Decimal1260116

CSS RGBrgb(19, 58, 84)

CSS HSLhsl(204, 63%, 20%)

Paint Matches — this color across 16 brands

Benjamin Moore

Marine 2059-10

ΔE 2.7 · #1E3F5A

Dulux

Integrity S36D9

ΔE 3.3 · #223F57

Sherwin-Williams

Salty Dog SW9177

ΔE 3.7 · #234058

Behr

Midnight Dream 570F-7

ΔE 3.8 · #1E3956

Vista Paint

Blazer Blue K-152

ΔE 3.9 · #243A52

RAL

Ocean Blue 5020

ΔE 4.8 · #1D334A

Hallman-Lindsay

Star-studded 620

ΔE 7.2 · #32425A

Kobra

Blue 31

ΔE 7.6 · #334059

Dunn-Edwards

Black River Falls DEA189

ΔE 8.4 · #343E54

PPG

Singing The Blues 1159-7

ΔE 8.4 · #2B4D68

Dutch Boy

Royal Blue D-6740

ΔE 9 · #1D375C

Kilz

Fountain Pen RC100-02

ΔE 9.1 · #354A67

IKEA

IKEA122 122

ΔE 11.7 · #3A5170

Valspar

Boisterous Blue 4009-6

ΔE 12.1 · #375264

Farrow & Ball

Hague Blue 30

ΔE 15.2 · #3D4E57

Colorhouse

Wool .06 Wool-06

ΔE 17.7 · #485761

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 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

#133A54

#532D13

Analogous

#13534D

#133A54

#131953

Triadic

#133A54

#531339

#395313

Split-Complementary

#133A54

#531319

#534D13

Tetradic

#133A54

#4D1353

#532D13

#195313

Monochromatic

#050E15

#133A54

#216491

#2F90D0

Rectangle

#133A54

#2D1353

#532D13

#395313

Compound

#133A54

#131953

#532D13

#534D13

Variations

Lighter

#226796

#4392C6

#98BED7

Darker

#0E2E44

#09202F

#04131C

Saturation

#29353D

#133953

#093B5D

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

11.93:1

AAA

vs Black

1.76:1

Fail

Deuteranopia

#133A54

#273455

Original → Simulated

Protanopia

#133A54

#353551

Original → Simulated

Tritanopia

#133A54

#0D3F3A

Original → Simulated

Color Psychology

Focused · Cooling

Gibraltar Sea 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

#4E585A

Warm Bulb 2700K

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

#133A54

Daylight 5500K

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

#3B5D7E

Cool Bulb 6500K

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

Pairs With

#E8EBED

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.

#462915

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: #133A54;

CSS — background

background-color: #133A54;

CSS Variable

--color-gibraltar-sea: #133A54;

Tailwind v3 — config

colors: { 'gibraltar-sea': '#133A54' }

Tailwind — arbitrary

bg-[#133A54] text-[#133A54]

SCSS

$gibraltar-sea: #133A54;

Similar Colors

Marine Blue

#1D3E59 · ΔE 2.4

Hidden Sapphire

#023B4E · ΔE 6.3

Champion Cobalt

#264864 · ΔE 6.4

Symphony Blue

#203B5D · ΔE 6.7

Adriatic Sea

#004763 · ΔE 6.9

Twilight

#254455 · ΔE 7.7

North Sea

#2B3B4C · ΔE 7.7

Downpour Blue

#254669 · ΔE 8.2

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 #133A54?

#133A54 is Gibraltar Sea, a deep blue with a cool undertone.

Is #133A54 warm or cool?

Gibraltar Sea reads cool, which influences how it interacts with surrounding tones and natural light.

What rooms work best with Gibraltar Sea?

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

What colors pair well with Gibraltar Sea?

Gibraltar Sea 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 Gibraltar Sea?

You can download Gibraltar Sea 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 Gibraltar Sea?

The hex code is #133A54. In RGB it's 19, 58, 84, and in HSL it's 204°, 63%, 20%.

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