GREENS

Harlequin

#3FFF00

RGB 63, 255, 0 · HSL 105°, 100%, 50% · CMYK 75, 0, 100, 0

Harlequin is #3FFF00 in HEX — rgb(63, 255, 0), hsl(105°, 100%, 50%), cmyk(75%, 0%, 100%, 0%).

Harlequin pulls into the mid-tone end of the greens spectrum — HSL 105°, 100%, 50%. The saturated saturation makes it bold and immediate, and the hue reads warm. 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#3FFF00

RGB63, 255, 0

HSL105°, 100%, 50%

HSV105°, 100%, 100%

CMYK75, 0, 100, 0

Decimal4194048

CSS RGBrgb(63, 255, 0)

CSS HSLhsl(105, 100%, 50%)

Paint Matches — this color across 16 brands

Behr

Barnyard Grass 440B-6

ΔE 13.5 · #50E80D

RAL

Luminous Green 6038

ΔE 38 · #00BB2D

Dulux

Effervescent Lime S21H9 · SB8B6

ΔE 41.6 · #9EDA2C

Kobra

Fluo 52

ΔE 44.6 · #00B131

Benjamin Moore

Paradise 2031-20

ΔE 46.5 · #63B525

Vista Paint

Wilderness Retreat K-320

ΔE 47.6 · #5AB32C

Dutch Boy

Temptations VS-9503

ΔE 52.3 · #A3CD39

Dunn-Edwards

Leprechaun DEA126

ΔE 55.3 · #6CB037

Sherwin-Williams

Electric Lime SW6921

ΔE 57.6 · #9ABA25

PPG

Funky Frog 1221-7

ΔE 59.1 · #98BD3C

Valspar

Greenway 6005-10C

ΔE 60 · #69AE44

Kilz

Vivid Lime RH100

ΔE 63.6 · #52A84C

Hallman-Lindsay

Green Gone Wild 774

ΔE 65.2 · #73A236

Colorhouse

Petal .02 Petal-02

ΔE 68.8 · #C3D263

IKEA

IKEA075 75

ΔE 80.5 · #E2E38D

Farrow & Ball

Citron 74

ΔE 90.8 · #F5D27B

Light Reflectance & Undertone

Light Reflectance Value (LRV)

73/100

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

TemperatureNeutral MasstoneGreen UndertoneBlue

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

Color Theory

Complementary

#3FFF00

#BF00FF

Analogous

#BFFF00

#3FFF00

#00FF40

Triadic

#3FFF00

#0040FF

#FF0040

Split-Complementary

#3FFF00

#4000FF

#FF00BF

Tetradic

#3FFF00

#00BFFF

#BF00FF

#FF4000

Monochromatic

#196600

#2DB300

#3FFF00

#79FF4D

#B3FF99

Rectangle

#3FFF00

#00FFBF

#BF00FF

#FF0040

Compound

#3FFF00

#00FF40

#BF00FF

#FF00BF

Variations

Lighter

#66FF33

#92F471

#C3F2B3

Darker

#33CC00

#238C00

#145200

Saturation

#6CA659

#40FF00

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

1.35:1

Fail

vs Black

15.52:1

AAA

Deuteranopia

#3FFF00

#DFC930

Original → Simulated

Protanopia

#3FFF00

#ECEC65

Original → Simulated

Tritanopia

#3FFF00

#6FEAF1

Original → Simulated

Color Psychology

Calm · Restorative

Harlequin 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

#6FEC1B

Warm Bulb 2700K

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

#3FFF00

Daylight 5500K

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

#5CF13F

Cool Bulb 6500K

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

Pairs With

#E9EEE7

Trim

Matched off-white

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

#F7F8F7

Ceiling

Whisper tint

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

#9816C3

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: #3FFF00;

CSS — background

background-color: #3FFF00;

CSS Variable

--color-harlequin: #3FFF00;

Tailwind v3 — config

colors: { 'harlequin': '#3FFF00' }

Tailwind — arbitrary

bg-[#3FFF00] text-[#3FFF00]

SCSS

$harlequin: #3FFF00;

Similar Colors

Paradise Green

#62B424 · ΔE 46.7

Neon Lime

#50AB18 · ΔE 47.0

Sweet Pea

#78BF38 · ΔE 48.9

Tropical Seaweed Green

#48AB2C · ΔE 49.9

Lime Green

#97C100 · ΔE 50.2

Lucky Charm Green

#61B83E · ΔE 50.6

Lizard Green

#33A122 · ΔE 51.3

Margarita

#A4C700 · ΔE 51.4

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 #3FFF00?

#3FFF00 is Harlequin, a mid-tone green with a warm undertone.

Is #3FFF00 warm or cool?

Harlequin reads warm, which influences how it interacts with surrounding tones and natural light.

What rooms work best with Harlequin?

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

What colors pair well with Harlequin?

Harlequin 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 Harlequin?

You can download Harlequin 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 Harlequin?

The hex code is #3FFF00. In RGB it's 63, 255, 0, and in HSL it's 105°, 100%, 50%.

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