GREENS

Neon Blue

#04D9FF

RGB 4, 217, 255 · HSL 189°, 100%, 51% · CMYK 98, 15, 0, 0

Neon Blue is #04D9FF in HEX — rgb(4, 217, 255), hsl(189°, 100%, 51%), cmyk(98%, 15%, 0%, 0%).

Neon Blue pulls into the mid-tone end of the greens spectrum — HSL 189°, 100%, 51%. The saturated saturation makes it bold and immediate, and the hue reads cool. In interior projects it shines on bedrooms, bathrooms, libraries — for grounding, restorative spaces. Reads best alongside soft white walls, oak floors, brass, warm clay accents.

Color Codes

HEX#04D9FF

RGB4, 217, 255

HSL189°, 100%, 51%

HSV189°, 98%, 100%

CMYK98, 15, 0, 0

Decimal317951

CSS RGBrgb(4, 217, 255)

CSS HSLhsl(189, 100%, 51%)

Paint Matches — this color across 16 brands

Behr

Windjammer 550B-5

ΔE 6.9 · #53D8F5

Dulux

Sea Capture S33G2 · SB8D1

ΔE 14.8 · #61C1DC

Hallman-Lindsay

Lasting Thoughts 659

ΔE 15.8 · #72C7E3

Kilz

Sailing Ship RE260-02

ΔE 16.3 · #51B8D0

Vista Paint

Lasting Thoughts C-658

ΔE 16.5 · #73C6E0

Benjamin Moore

Pool 2059-50

ΔE 17.4 · #77C5E3

Kobra

Blue 28

ΔE 17.5 · #4EB3CD

PPG

High Dive 1236-5

ΔE 17.8 · #59B9CC

Sherwin-Williams

Fountain SW6787

ΔE 18.4 · #56B5CA

Dunn-Edwards

Faded Jeans DE5752

ΔE 18.5 · #5DBDCB

Valspar

Fiesta Blue 5003-10A

ΔE 19.3 · #7BC5D9

Dutch Boy

Sky Blue D-6742

ΔE 19.6 · #7AC2D8

Farrow & Ball

St Giles Blue 280

ΔE 27.1 · #599EC4

IKEA

IKEA119 119

ΔE 27.9 · #9BC2D8

RAL

Light Green 6027

ΔE 29.1 · #84C3BE

Colorhouse

Sprout .01 Sprout-01

ΔE 30.8 · #ADE8E2

Light Reflectance & Undertone

Light Reflectance Value (LRV)

57/100

Light

0 · DarkLight · 100

Reflects plenty of light and keeps spaces feeling open and airy while still showing clear colour. A safe, flexible choice for living areas.

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

#04D9FF

#FF2B05

Analogous

#05FFA8

#04D9FF

#055DFF

Triadic

#04D9FF

#FF05DA

#DAFF05

Split-Complementary

#04D9FF

#FF055D

#FFA805

Tetradic

#04D9FF

#A805FF

#FF2B05

#5DFF05

Monochromatic

#005B6B

#009CB8

#04D9FF

#52E5FF

#9EF0FF

Rectangle

#04D9FF

#2B05FF

#FF2B05

#DAFF05

Compound

#04D9FF

#055DFF

#FF2B05

#FFA805

Variations

Lighter

#37E1FF

#74E1F4

#B5E9F2

Darker

#00B1D0

#007A8F

#004753

Saturation

#5D9CA8

#05DAFF

Interior Use

Best Rooms

bedrooms, bathrooms, libraries

Best Uses

main walls, cabinetry, soft furniture

Pairs With

soft white walls, oak floors, brass, warm clay accents

Accessibility (WCAG)

vs White

1.70:1

Fail

vs Black

12.37:1

AAA

Deuteranopia

#04D9FF

#A0B9FF

Original → Simulated

Protanopia

#04D9FF

#C8C8FA

Original → Simulated

Tritanopia

#04D9FF

#00DED6

Original → Simulated

Color Psychology

Calm · Restorative

Neon Blue sits in the part of the spectrum the eye relaxes into. Designers reach for green when a room needs to feel like a refuge — bedrooms, libraries, bathrooms — because it lowers visual blood-pressure without flattening the space.

SymbolismGrowth, balance, nature

PersonalitySteady, grounded, thoughtful

calmnaturerestorativebalancebedroomlibrary

How it looks under different light

#42CFDA

Warm Bulb 2700K

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

#04D9FF

Daylight 5500K

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

#30D4FF

Cool Bulb 6500K

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

Pairs With

#E7EDEE

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.

#C73116

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 · Trim · Soft furniture

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: #04D9FF;

CSS — background

background-color: #04D9FF;

CSS Variable

--color-neon-blue: #04D9FF;

Tailwind v3 — config

colors: { 'neon-blue': '#04D9FF' }

Tailwind — arbitrary

bg-[#04D9FF] text-[#04D9FF]

SCSS

$neon-blue: #04D9FF;

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#76C4E2 · ΔE 17.5

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#78CBDA · ΔE 18.3

Graceful Sea

#76C2D7 · ΔE 19.0

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#54B1C9 · ΔE 19.0

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#7ACFD9 · ΔE 19.4

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 #04D9FF?

#04D9FF is Neon Blue, a mid-tone green with a cool undertone.

Is #04D9FF warm or cool?

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

What rooms work best with Neon Blue?

Neon Blue works well in bedrooms, bathrooms, libraries. Designers typically use it for main walls, cabinetry, soft furniture.

What colors pair well with Neon Blue?

Neon Blue pairs naturally with soft white walls, oak floors, brass, warm clay accents. Its complementary color is also a strong contrast option for accents.

Where can I download Neon Blue?

You can download Neon 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 Neon Blue?

The hex code is #04D9FF. In RGB it's 4, 217, 255, and in HSL it's 189°, 100%, 51%.

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