GREENS

Cathode Green

#00FF55

RGB 0, 255, 85 · HSL 140°, 100%, 50% · CMYK 100, 0, 67, 0

Cathode Green is #00FF55 in HEX — rgb(0, 255, 85), hsl(140°, 100%, 50%), cmyk(100%, 0%, 67%, 0%).

Cathode Green pulls into the mid-tone end of the greens spectrum — HSL 140°, 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#00FF55

RGB0, 255, 85

HSL140°, 100%, 50%

HSV140°, 100%, 100%

CMYK100, 0, 67, 0

Decimal65365

CSS RGBrgb(0, 255, 85)

CSS HSLhsl(140, 100%, 50%)

Paint Matches — this color across 16 brands

Behr

Fresh Greens 460B-5

ΔE 9.6 · #42EF42

RAL

Luminous Green 6038

ΔE 28 · #00BB2D

Kobra

Fluo 52

ΔE 33.8 · #00B131

Vista Paint

Wilderness Retreat K-320

ΔE 40.3 · #5AB32C

Benjamin Moore

Paradise 2031-20

ΔE 40.6 · #63B525

Dulux

Effervescent Lime S21H9 · SB8B6

ΔE 41 · #9EDA2C

Dunn-Edwards

Leprechaun DEA126

ΔE 47.7 · #6CB037

Dutch Boy

Temptations VS-9503

ΔE 49.2 · #A3CD39

PPG

Green Pear 1224-7

ΔE 49.7 · #79BE58

Valspar

Greenway 6005-10C

ΔE 50.7 · #69AE44

Kilz

Vivid Lime RH100

ΔE 52.3 · #52A84C

Sherwin-Williams

Electric Lime SW6921

ΔE 55 · #9ABA25

Hallman-Lindsay

Green Gone Wild 774

ΔE 57.8 · #73A236

Colorhouse

Petal .02 Petal-02

ΔE 62.9 · #C3D263

IKEA

IKEA021 21

ΔE 72.4 · #BEC675

Farrow & Ball

Yeabridge Green 287

ΔE 84.2 · #919F70

Light Reflectance & Undertone

Light Reflectance Value (LRV)

72/100

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

#00FF55

#FF00AA

Analogous

#2BFF00

#00FF55

#00FFD5

Triadic

#00FF55

#5500FF

#FF5500

Split-Complementary

#00FF55

#D400FF

#FF002B

Tetradic

#00FF55

#002BFF

#FF00AA

#FFD500

Monochromatic

#006622

#00B33C

#00FF55

#4DFF88

#99FFBB

Rectangle

#00FF55

#00AAFF

#FF00AA

#FF5500

Compound

#00FF55

#00FFD5

#FF00AA

#FF002B

Variations

Lighter

#33FF77

#71F49D

#B3F2C8

Darker

#00CC44

#008C2F

#00521B

Saturation

#59A673

#00FF55

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

1.36:1

Fail

vs Black

15.44:1

AAA

Deuteranopia

#00FF55

#DBC862

Original → Simulated

Protanopia

#00FF55

#EBEB7E

Original → Simulated

Tritanopia

#00FF55

#5AEBF2

Original → Simulated

Color Psychology

Calm · Restorative

Cathode Green 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

#3FEC5B

Warm Bulb 2700K

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

#00FF55

Daylight 5500K

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

#2DF17F

Cool Bulb 6500K

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

Pairs With

#E7EEE9

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.

#C31689

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: #00FF55;

CSS — background

background-color: #00FF55;

CSS Variable

--color-cathode-green: #00FF55;

Tailwind v3 — config

colors: { 'cathode-green': '#00FF55' }

Tailwind — arbitrary

bg-[#00FF55] text-[#00FF55]

SCSS

$cathode-green: #00FF55;

Similar Colors

Paradise Green

#62B424 · ΔE 40.8

Neon Lime

#50AB18 · ΔE 40.9

Tropical Seaweed Green

#48AB2C · ΔE 41.4

Lucky Charm Green

#61B83E · ΔE 41.7

Sweet Pea

#78BF38 · ΔE 42.4

Lizard Green

#33A122 · ΔE 42.7

Fresh Lime

#4EB245 · ΔE 43.4

Traffic Light Green

#32A431 · ΔE 43.4

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 #00FF55?

#00FF55 is Cathode Green, a mid-tone green with a warm undertone.

Is #00FF55 warm or cool?

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

What rooms work best with Cathode Green?

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

What colors pair well with Cathode Green?

Cathode Green 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 Cathode Green?

You can download Cathode Green 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 Cathode Green?

The hex code is #00FF55. In RGB it's 0, 255, 85, and in HSL it's 140°, 100%, 50%.

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