BLUES

Effervescent Blue

#00315A

RGB 0, 49, 90 · HSL 207°, 100%, 18% · CMYK 100, 46, 0, 65

Effervescent Blue is #00315A in HEX — rgb(0, 49, 90), hsl(207°, 100%, 18%), cmyk(100%, 46%, 0%, 65%).

Effervescent Blue pulls into the deep end of the blues spectrum — HSL 207°, 100%, 18%. The saturated saturation makes it bold and immediate, 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#00315A

RGB0, 49, 90

HSL207°, 100%, 18%

HSV207°, 100%, 35%

CMYK100, 46, 0, 65

Decimal12634

CSS RGBrgb(0, 49, 90)

CSS HSLhsl(207, 100%, 18%)

Paint Matches — this color across 16 brands

RAL

Pearl Night Blue 5026

ΔE 3.6 · #102C54

Behr

Peaceful Night 590F-7

ΔE 4.1 · #1D355C

Dutch Boy

Delft Blue 7447

ΔE 4.7 · #003B67

Dulux

Navy Trim S41G9

ΔE 5.5 · #203662

Benjamin Moore

Symphony 2060-10

ΔE 7.5 · #213C5E

Sherwin-Williams

Honorable Blue SW6811

ΔE 9.7 · #164576

Hallman-Lindsay

Newport Indigo historic-newport-indigo

ΔE 10.1 · #313D6C

Vista Paint

Newport Indigo C-1378

ΔE 10.8 · #363F63

Kilz

Indigo RH220

ΔE 11.5 · #314973

PPG

Dragonfly 1162-7

ΔE 11.9 · #314A76

Dunn-Edwards

Magic Night DEA191

ΔE 12.7 · #3A3B5B

Kobra

Blue 31

ΔE 14.2 · #334059

Valspar

Spirit Blue 4011-9

ΔE 16 · #49456F

IKEA

IKEA122 122

ΔE 16.5 · #3A5170

Colorhouse

Petal .05 Petal-05

ΔE 22.4 · #1F4992

Farrow & Ball

Hague Blue 30

ΔE 25.6 · #3D4E57

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

#00315A

#5C2900

Analogous

#005C57

#00315A

#00055C

Triadic

#00315A

#5C0032

#325C00

Split-Complementary

#00315A

#5C0005

#5C5700

Tetradic

#00315A

#57005C

#5C2900

#055C00

Monochromatic

#000E1A

#00315A

#005DA8

#0087F5

Rectangle

#00315A

#29005C

#5C2900

#325C00

Compound

#00315A

#00055C

#5C2900

#5C5700

Variations

Lighter

#0060AF

#178CEC

#83BBE9

Darker

#002849

#001C32

#00101D

Saturation

#202F3C

#00325C

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

13.23:1

AAA

vs Black

1.59:1

Fail

Deuteranopia

#00315A

#142D5A

Original → Simulated

Protanopia

#00315A

#2C2C56

Original → Simulated

Tritanopia

#00315A

#003933

Original → Simulated

Color Psychology

Focused · Cooling

Effervescent 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

#3F515F

Warm Bulb 2700K

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

#00315A

Daylight 5500K

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

#2D5683

Cool Bulb 6500K

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

Pairs With

#E7EBEE

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.

#532A09

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: #00315A;

CSS — background

background-color: #00315A;

CSS Variable

--color-effervescent-blue: #00315A;

Tailwind v3 — config

colors: { 'effervescent-blue': '#00315A' }

Tailwind — arbitrary

bg-[#00315A] text-[#00315A]

SCSS

$effervescent-blue: #00315A;

Similar Colors

Symphony Blue

#203B5D · ΔE 7.2

Admiral Blue

#2B3762 · ΔE 7.7

Bold Blue

#2B3558 · ΔE 8.1

Blue Grotto

#353963 · ΔE 10.3

Downpour Blue

#254669 · ΔE 10.7

Midnight Navy

#333356 · ΔE 10.9

Marine Blue

#1D3E59 · ΔE 11.7

Patriot Blue

#184A7C · ΔE 11.8

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 #00315A?

#00315A is Effervescent Blue, a near-black blue with a cool undertone.

Is #00315A warm or cool?

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

What rooms work best with Effervescent Blue?

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

What colors pair well with Effervescent Blue?

Effervescent 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 Effervescent Blue?

You can download Effervescent 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 Effervescent Blue?

The hex code is #00315A. In RGB it's 0, 49, 90, and in HSL it's 207°, 100%, 18%.

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