BLUES

Petro Blue

#2C5861

RGB 44, 88, 97 · HSL 190°, 38%, 28% · CMYK 55, 9, 0, 62

Petro Blue is #2C5861 in HEX — rgb(44, 88, 97), hsl(190°, 38%, 28%), cmyk(55%, 9%, 0%, 62%).

Petro Blue pulls into the deep end of the blues spectrum — HSL 190°, 38%, 28%. 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#2C5861

RGB44, 88, 97

HSL190°, 38%, 28%

HSV190°, 55%, 38%

CMYK55, 9, 0, 62

Decimal2906209

CSS RGBrgb(44, 88, 97)

CSS HSLhsl(190, 38%, 28%)

Paint Matches — this color across 16 brands

Behr

Petro Blue QE-47

Exact match

PPG

Deep Emerald 1148-7

ΔE 1.8 · #2A545C

Hallman-Lindsay

Frozen Stream 669

ΔE 2.1 · #30555D

Valspar

Classic Teal 5011-8

ΔE 2.6 · #285B62

Dulux

Cold Sea Currents S33B8

ΔE 2.7 · #32555E

Benjamin Moore

Galápagos 2057-20

ΔE 3 · #205864

Vista Paint

Turquoise Ocean K-1250

ΔE 3.1 · #245A61

Dunn-Edwards

Encore Teal DEA182

ΔE 3.5 · #30525B

Sherwin-Williams

Deep Sea Dive SW7618

ΔE 4.2 · #376167

Kilz

Fathoms Below RE290-02

ΔE 5.5 · #3F5A5F

RAL

Azure Blue 5009

ΔE 7.8 · #025669

Farrow & Ball

Hague Blue 30

ΔE 8.9 · #3D4E57

Dutch Boy

Ocean Blue D-6743

ΔE 9.2 · #4C6A74

Colorhouse

Wool .06 Wool-06

ΔE 9.5 · #485761

IKEA

IKEA097 97

ΔE 9.9 · #006673

Kobra

Green 38

ΔE 14.7 · #415448

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 MasstoneTeal UndertoneGreen

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

Color Theory

Complementary

#2C5861

#63352C

Analogous

#2C6350

#2C5861

#2C3E63

Triadic

#2C5861

#632C59

#59632C

Split-Complementary

#2C5861

#632C3E

#63502C

Tetradic

#2C5861

#502C63

#63352C

#3E632C

Monochromatic

#081012

#152A2E

#2C5861

#448997

#6BAFBD

Rectangle

#2C5861

#352C63

#63352C

#59632C

Compound

#2C5861

#2C3E63

#63352C

#63502C

Variations

Lighter

#438895

#6DA9B4

#AECAD0

Darker

#224850

#173238

#0D1E21

Saturation

#3F4D50

#2C5963

#166879

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

7.85:1

AAA

vs Black

2.68:1

Fail

Deuteranopia

#2C5861

#474D62

Original → Simulated

Protanopia

#2C5861

#525260

Original → Simulated

Tritanopia

#2C5861

#2C5957

Original → Simulated

Color Psychology

Focused · Cooling

Petro 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

#606F64

Warm Bulb 2700K

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

#2C5861

Daylight 5500K

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

#4E7488

Cool Bulb 6500K

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

Pairs With

#E9ECEC

Trim

Matched off-white

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

#F7F8F8

Ceiling

Whisper tint

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

#503029

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: #2C5861;

CSS — background

background-color: #2C5861;

CSS Variable

--color-petro-blue: #2C5861;

Tailwind v3 — config

colors: { 'petro-blue': '#2C5861' }

Tailwind — arbitrary

bg-[#2C5861] text-[#2C5861]

SCSS

$petro-blue: #2C5861;

Similar Colors

Galápagos Turquoise

#1F5763 · ΔE 3.0

Bermuda Turquoise

#285E6B · ΔE 3.8

Dark Teal

#255A5E · ΔE 4.4

Deep Sea Green

#255456 · ΔE 5.2

Oasis Blue

#225A5D · ΔE 5.4

Olympus Green

#3D585B · ΔE 5.9

River Blue

#254952 · ΔE 6.4

Everard Blue

#3D5459 · ΔE 6.5

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 #2C5861?

#2C5861 is Petro Blue, a deep blue with a cool undertone.

Is #2C5861 warm or cool?

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

What rooms work best with Petro Blue?

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

What colors pair well with Petro Blue?

Petro 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 Petro Blue?

You can download Petro 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 Petro Blue?

The hex code is #2C5861. In RGB it's 44, 88, 97, and in HSL it's 190°, 38%, 28%.

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