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green · neutral

#6df42f

a balanced, electric green · neutral · closest name: Lawn Green

Token name suggestion: Atlas Fern

RGB
109, 244, 47
HSL
101°, 90%, 57%
CMYK
55, 0, 81, 4
Luminance
0.6816

#6df42f is a balanced electric green, 101° on the wheel and 55/100 on the cool side. Put black text on it (14.63:1). As text it scores 1.44:1 on white — use #308807 instead. Nearest name is Lawn Green, nearest Tailwind family is lime.

hsl(101 90% 57%)rgb(109 244 47)Base step 500AAA inkNeutral

At a glance

Every number on this page in one read: what #6df42f is made of, how bright it looks, and which way it leans.

Hex
#6df42f
Hue
101°
green
Saturation
90%
electric
Lightness
57%
balanced
Brightness
96%
HSV value
Perceived
77%
weighted brightness
Luminance
0.6816
WCAG relative
Temperature
Neutral
55/100 cool
Color family
Green
Tone
Electric
Best ink
Black
14.63:1
Closest name
Lawn Green
ΔE2000 3
Chroma
101.6
LCH, 0–130ish
OKLCH L
0.858
perceptual lightness
Tailwind
lime
500 · ΔE 9.8
Web-safe
#66FF33
nearest of 216
Where it sits
Hue101° of 360°
Saturation90%
Lightness57%
Saturation × lightness field

Left edge is grey, right edge is full chroma; top is white, bottom is black. The dot is #6df42f.

Temperature
Warm ← → Cool55% cool

Reads neutral. Warm and cool siblings keep the same lightness, so you can swap one in without redoing your contrast maths.

Luminance by channel
Red5%
Green95%
Blue0%

Green carries most of what the eye calls brightness — that is why WCAG weights it 0.7152.

Every format

HEX#6df42f
HEX (8-digit)#6df42fff
RGBrgb(109, 244, 47)
RGBArgba(109, 244, 47, 1)
HSLhsl(101, 90%, 57%)
HSV / HSBhsv(101, 81%, 96%)
HWBhwb(101 18% 4%)
CMYKcmyk(55%, 0%, 81%, 4%)
LABlab(86.1 -67.9 75.6)
LCHlch(86.1 101.6 131.9)
OKLCHoklch(0.858 0.251 138.4)
XYZ (D65)xyz(39.17, 68.15, 13.78)
Decimal7205935
Display P3color(display-p3 0.427 0.957 0.184)
Web-safe#66FF33

Copy-ready code

every platformclick to select
/* CSS */
color: #6df42f;
background-color: #6df42f;
/* CSS custom property */
--brand: #6df42f;
/* Tailwind (arbitrary) */
class="text-[#6df42f] bg-[#6df42f]"
/* SCSS */
$brand: #6df42f;
/* SwiftUI */
Color(red: 0.427, green: 0.957, blue: 0.184)
/* UIKit */
UIColor(red: 0.427, green: 0.957, blue: 0.184, alpha: 1)
/* Android XML */
<color name="brand">#6DF42F</color>
/* Android Compose */
Color(0xFF6DF42F)
/* Flutter */
Color(0xFF6DF42F)
/* Python / OpenCV (BGR) */
(47, 244, 109)
/* Python / PIL (RGB) */
(109, 244, 47)
/* Java AWT */
new Color(109, 244, 47)
/* .NET */
Color.FromArgb(255, 109, 244, 47)
/* OpenGL / Unity (0–1) */
(0.4275f, 0.9569f, 0.1843f, 1f)
/* LaTeX */
\definecolor{brand}{RGB}{109,244,47}
modern cssclick to select
/* mix without leaving CSS */
background: color-mix(in oklab, #6df42f 85%, white);
border-color: color-mix(in oklab, #6df42f 40%, transparent);
/* theme-aware in one line */
color: light-dark(#2B7906, #DBEED3);
/* relative colour syntax */
--hover: hsl(from #6df42f h s calc(l - 7));

Design tokens

The same ramp in the four formats a team actually needs. Paste one and the whole palette lands with it.

css custom propertiesclick to select
:root {
  --brand-50: #F5FDF2;
  --brand-100: #ECFBE5;
  --brand-200: #D4F8C3;
  --brand-300: #B4F994;
  --brand-400: #8FF75F;
  --brand-500: #6df42f;
  --brand-600: #52E90C;
  --brand-700: #44C20A;
  --brand-800: #369B08;
  --brand-900: #2A700B;
  --brand-950: #1B4607;
  --brand: #6df42f;
  --brand-ink: #000000;
  --brand-surface: #F6FAF4;
  --brand-border: #CEEDC0;
  --brand-hover: #55F20D;
  --brand-pressed: #49D10B;
}
@media (prefers-color-scheme: dark) {
  :root {
    --brand-surface: #192414;
    --brand-ink: #DBEED3;
  }
}
tailwind.config.jsclick to select
theme: {
  extend: {
    colors: {
      brand: {
        50: '#F5FDF2',
        100: '#ECFBE5',
        200: '#D4F8C3',
        300: '#B4F994',
        400: '#8FF75F',
        500: '#6df42f',
        600: '#52E90C',
        700: '#44C20A',
        800: '#369B08',
        900: '#2A700B',
        950: '#1B4607',
        DEFAULT: '#6df42f',
      },
    },
  },
}
scss mapclick to select
$brand: (
  '50': #F5FDF2,
  '100': #ECFBE5,
  '200': #D4F8C3,
  '300': #B4F994,
  '400': #8FF75F,
  '500': #6df42f,
  '600': #52E90C,
  '700': #44C20A,
  '800': #369B08,
  '900': #2A700B,
  '950': #1B4607,
);
$brand-base: #6df42f;
$brand-ink: #000000;

@function brand($step) { @return map-get($brand, $step); }
w3c design tokens (json)click to select
{
  "color": {
    "brand": {
      "50": { "$value": "#F5FDF2", "$type": "color" },
      "100": { "$value": "#ECFBE5", "$type": "color" },
      "200": { "$value": "#D4F8C3", "$type": "color" },
      "300": { "$value": "#B4F994", "$type": "color" },
      "400": { "$value": "#8FF75F", "$type": "color" },
      "500": { "$value": "#6df42f", "$type": "color" },
      "600": { "$value": "#52E90C", "$type": "color" },
      "700": { "$value": "#44C20A", "$type": "color" },
      "800": { "$value": "#369B08", "$type": "color" },
      "900": { "$value": "#2A700B", "$type": "color" },
      "950": { "$value": "#1B4607", "$type": "color" }
    },
    "brandInk": { "$value": "#000000", "$type": "color" }
  }
}

Best text color

Only one of black and white can be right. This is the one, with the number that proves it.

Readable at a glance#000000 on #6df42f · 14.63:1
Use #000000AAA at every size.
Aa
12px
Aa
16px
Aa
24px
Aa
White text · 1.44:1
AA fail · AA large fail · AAA fail
Aa
Black text · 14.63:1 · recommended
AA pass · AA large pass · AAA pass
Reading the other direction: #6df42f as text scores 1.44:1 on white and 14.63:1 on black.
Best tinted ink on it, if plain black or white feels flat: #2B7906 at 3.81:1.

Make it accessible

A contrast checker tells you that you failed. This tells you what to ship instead — same hue, same saturation, lightness moved only as far as WCAG demands.

The quick fox
#308807 · 4.52:1
AA on white−29% L
#308807
The quick fox
#246605 · 7.05:1
AAA on white−36% L
#246605
The quick fox
#6df42f · 14.63:1
AA on blackalready passes
#6df42f
The quick fox
#6df42f · 14.63:1
AAA on blackalready passes
#6df42f

Large text — 24px regular or 18.66px bold and above — only needs 3:1, so #3CAA09 is enough for headings on white. Non-text elements such as icons, chart strokes and focus rings also sit at 3:1 under WCAG 2.2 (1.4.11).

Accessibility — WCAG contrast

Aa
#6df42f on white: 1.44:1
AA ✗ fail · AA-large · AAA
Aa
#6df42f on black: 14.63:1
AA ✓ pass · AA-large · AAA
Against the neutral ladder

Contrast is symmetric, so each row covers both directions: #6df42f as text on that neutral, and that neutral as text on #6df42f.

NeutralRatioBoth directions
White1.44:1AaAa
Slate 501.37:1AaAa
Slate 1001.31:1AaAa
Slate 2001.16:1AaAa
Slate 3001.03:1AaAa
Slate 4001.79:1AaAa
Slate 5003.32:1AaAa
Slate 6005.28:1AaAa
Slate 7007.21:1AaAa
Slate 80010.19:1AaAa
Slate 90012.44:1AaAa
Black14.63:1AaAa
Colour vision deficiency
true color
protanopia · #FCDE00
deuteranopia · #EBD348
tritanopia · #60EBD1

Roughly one man in twelve has some form of colour vision deficiency. If any of the three panels above is hard to tell apart from a neighbouring colour in your palette, add a shape, an icon or a label so the meaning does not rest on hue alone.

Color scale — 50 to 950

A Tailwind-shaped ramp built around this exact hex. #6df42f is pinned to step 500; the rest hold its hue and let saturation ease off at the extremes so the pale end never turns neon.

#F5FDF2
#ECFBE5
#D4F8C3
#B4F994
#8FF75F
#6df42f
#52E90C
#44C20A
#369B08
#2A700B
#1B4607
Base = 500Lightest = 50 · #F5FDF2Darkest = 950 · #1B4607Text step on white = 900
Perceptual ramp — OKLCH

The same eleven steps expressed in OKLCH, where equal lightness numbers actually look equally spaced. HSL ramps go muddy in the yellows and washed out in the blues; this one does not. Modern browsers render it natively — the hex ramp above is the fallback.

50100200300400500600700800900950
oklch tokensclick to select
:root {
  --brand-50: oklch(0.97 0.063 138.4);
  --brand-100: oklch(0.94 0.100 138.4);
  --brand-200: oklch(0.88 0.151 138.4);
  --brand-300: oklch(0.80 0.196 138.4);
  --brand-400: oklch(0.72 0.231 138.4);
  --brand-500: oklch(0.64 0.251 138.4);
  --brand-600: oklch(0.56 0.251 138.4);
  --brand-700: oklch(0.48 0.236 138.4);
  --brand-800: oklch(0.40 0.211 138.4);
  --brand-900: oklch(0.32 0.176 138.4);
  --brand-950: oklch(0.24 0.138 138.4);
}

Colors that work with #6df42f

Not a palette — a role sheet. Each swatch answers one question you will hit while building the component.

Text on it#000000
Black wins here
Surface#F6FAF4
Tinted page background
Border#CEEDC0
Hairlines and dividers
Muted text#649B4B
Captions on the surface
Accent#842BF8
Second voice, not a rival
Dark variant#2B7906
Hover, pressed, headers
Light variant#EEFEE7
Selected rows, tints
Dark surface#192414
Dark-mode background
Hover#55F20D
One step down in lightness
Pressed#49D10B
Two steps down
Disabled#C5D5BE
Chroma pulled out
Focus ring#77FF39
Offset from the fill so it reads
Light mode
Everything in its place

Surface, border, heading and body all derive from this one hue, so the screen stays coherent without a second palette.

Primary actionSecondaryBadge
Dark mode
Same hue, inverted

Lightness flips, hue holds. The accent stays the anchor in both themes.

Primary actionSecondaryAccent

In real components

The same eight roles, wired into the interface patterns you will actually build with them. Every state below is a computed value, not a mock-up.

Buttons and states
Save changesHoverPressedDisabled
OutlineSubtleLinkFocused
Form field
you@company.com

Focus ring uses the light variant so the field still reads as one shape.

Send me product updates
Notice
Your export is ready

The file stays available for seven days. Download it before it expires.

NewBetaDraft
Data
Storage used68%
Acme LtdActive
NorthwindTrial
GlobexActive

How to use #6df42f

Derived from its contrast, chroma and lightness — not from taste.

Works well for
  • Text and icons on dark surfaces
  • Primary buttons and calls to action
  • Focus rings, active and selected states
  • Brand accents, badges and data highlights
  • Chart series and data categories
Use with care
  • Text of any size on white — fails WCAG AA
  • Full-page backgrounds — tiring over long sessions
  • Status meaning — pair it with an icon or label, never colour alone
  • Pairing with a same-lightness hue — edges vibrate
Minimum size as text on white
Not as text
Safe as a fill behind white type
No — use #2B7906
Safe as a 1px border on white
No — use #3CAA09

Meaning and mood

What a colour in this family tends to signal, and how this particular chroma and lightness change the reading.

safegrowingnaturalpermissive

Green means go, well, and grown. It carries finance, sustainability and health with almost no explanation needed.

At this chroma the association is amplified — it will dominate anything placed beside it, so give it space and use it sparingly. The mid lightness keeps it versatile in both themes.

Worth knowing

Red/green pairs are the most common colour-blindness failure — never let the two carry meaning alone.

Reads as
  • FormalityLow
  • EnergyHigh
  • Weight43/100
  • TemperatureNeutral
  • ApproachabilityBalanced

Colour associations are cultural and vary by market. Treat these as a starting point for a conversation with your audience, not a finding about them.

Similar colors

One move away from this hex in each direction. Every swatch is its own page.

Color relationships

The wheel positions with their names attached, so you can grab the one you actually need.

Complementary#B62FF4
Analogous left#D0F42F
Analogous right#2FF454
Split-complement 1#542FF4
Split-complement 2#F42FD0
Triadic 1#2F6DF4
Triadic 2#F42F6D
Tetradic#2FD0F4
On the wheel
Base+30°−30°+120°+240°+180°101°

#6df42f sits at 101°. Every dot is a harmony position and links to its own page in the table alongside.

RGB percentages

Red42.7%
Green95.7%
Blue18.4%
R · 0–255
109
0x6d
G · 0–255
244
0xf4
B · 0–255
47
0x2f

CMYK percentages

Cyan55.3%
Magenta0.0%
Yellow80.7%
Key (black)4.3%

Total ink coverage is 140%. Most commercial presses cap around 300% — above that, sheets stop drying properly.

Color previews

#6df42f text on a black background

contrast 14.63:1

Card sample

#6df42f text on a white background

contrast 1.44:1

Card sample

#6df42f on grey

1.31:1

#6df42f on its own surface

1.36:1

#6df42f on its dark surface

11.22:1

CSS3 live lab

Text font color

The quick brown fox

color: #6df42f;
Background color
Panel with #6df42f background
background-color: #6df42f;
Text shadow — hex

Glowing headline

text-shadow: 2px 2px 8px #6df42f;
Text shadow — RGB

Soft neon halo

text-shadow: 0 0 14px rgba(109, 244, 47, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(109, 244, 47, 0.45);
Border & gradient
Gradient panel
border: 3px solid #6df42f;
background: linear-gradient(135deg, #6df42f, #2FF474);
Gradient text

Gradient headline

background: linear-gradient(90deg, #6df42f, #2FF4A6);
-webkit-background-clip: text;
color: transparent;
Focus ring
Focused control
outline: 2px solid #6df42f;
outline-offset: 3px;
Underline & caret

Marked up text

text-decoration-color: #6df42f;
caret-color: #6df42f;
Left rule
Pull quote or callout
border-left: 4px solid #6df42f;
Ring + tint
Selected chip
background: #EEFEE7;
box-shadow: inset 0 0 0 2px #6df42f;
Conic badge
68%
background: conic-gradient(#6df42f 68%, #e2e8f0 0);

Transparency

What each alpha value actually composites to. The top row is #6df42f over white; the bottom row is the same alpha over a checkerboard, so you can see what survives on a photo or a video.

Bottom row of hexes is the flattened result over white — use those when a design tool refuses transparency, or when you need a solid fallback.

alpha in every syntaxclick to select
rgba(109, 244, 47, 0.5)
rgb(109 244 47 / 50%)
#6df42f80
hsl(101 90% 57% / 50%)
color-mix(in srgb, #6df42f 50%, transparent)
Alpha8-digit hexFlat on white
10%#6df42f1a#F0FEEA
20%#6df42f33#E2FDD5
40%#6df42f66#C5FBAC
60%#6df42f99#A7F882
80%#6df42fcc#8AF659

Gradients from #6df42f

Six recipes, each built from this hex and shown with the exact CSS that produced it.

Elevation
Same hue, three lightnesses — safe anywhere
background: linear-gradient(135deg, #96F769, #6df42f 45%, #2B7906);
Duotone
A short hue run reads richer than a flat fill
background: linear-gradient(120deg, #6df42f, #12F374);
Complement sweep
Loud — keep it behind large type only
background: linear-gradient(90deg, #6df42f, #B62FF4);
Spotlight
Hero panels and app headers
background: radial-gradient(120% 120% at 20% 0%, #AAF986 0%, #6df42f 45%, #2B7906 100%);
Soft wash
Section backgrounds that stay readable
background: linear-gradient(180deg, #F6FAF4, #ffffff);
Mesh
Ambient background, no image weight
background: radial-gradient(60% 60% at 15% 20%, #E7F760 0%, transparent 60%), radial-gradient(55% 55% at 85% 15%, #4CF67A 0%, transparent 60%), radial-gradient(70% 70% at 50% 95%, #2B7906 0%, transparent 65%), #6df42f;

Monochromatic scale

Palettes built from #6df42f

Shades — darker

Tints — lighter

Tones — desaturated

Color harmonies

Nearest named colors

Ranked with CIEDE2000 across all 139 CSS keywords. Under ΔE 2 the eye stops telling them apart; over ΔE 10 they are plainly different colors.

#6df42f in the real world

Where a color in this family tends to land, and the interface roles it is usually asked to play.

Industries
SustainabilityFinanceHealth and wellnessAgriculture
Common UI roles
ButtonsLinksFocus statesCharts
Print note

Sits outside most CMYK gamuts — expect a duller press result, or specify a spot ink.

On screens

Holds up across typical panel gamma. Still worth checking on an uncalibrated laptop, where mid-tones shift most.

In dark mode

Usable as-is on a dark surface at 14.63:1.

Explore nearby colors

Small, deliberate steps away from this hex — useful when you are hunting for the version of a colour that finally feels right.

#6df42f, answered

What color is #6df42f?

#6df42f is a balanced electric green, closest to Lawn Green (ΔE2000 3). It sits at 101° on the hue wheel with 90% saturation and 57% lightness, which reads as neutral.

What is the RGB value of #6df42f?

rgb(109, 244, 47) — 109 red, 244 green and 47 blue out of 255, or 42.7% / 95.7% / 18.4% by channel.

What is #6df42f in HSL and HSV?

hsl(101, 90%, 57%) and hsv(101, 81%, 96%). HSL is what CSS takes; HSV is what your design tool's picker shows, which is why the saturation numbers rarely match.

Is #6df42f a light or a dark color?

It is a light color. Relative luminance is 0.6816 and perceived brightness is 77%, so black text on it reaches 14.63:1.

Should I use black or white text on #6df42f?

Black. It scores 14.63:1 against #6df42f, versus 1.44:1 for white — AAA at any size.

Is #6df42f accessible on a white background?

#6df42f on white scores 1.44:1, which fails WCAG AA at every size. Darken it to #308807 to reach 4.5:1, or #246605 for 7:1.

What is the complementary color of #6df42f?

#B62FF4 sits directly opposite on the wheel. Softer options are the split-complements #542FF4 and #F42FD0, which give the same contrast with far less vibration.

What colors go well with #6df42f?

For interface work: #F6FAF4 as the surface, #CEEDC0 for borders, #649B4B for secondary text, #842BF8 as an accent and #2B7906 for hover and pressed states. For a palette, the analogous pair #D0F42F and #2FF454 stays calm, while #B62FF4 is the loudest partner.

What is #6df42f in CMYK for printing?

cmyk(55%, 0%, 81%, 4%). This is a screen-to-ink approximation — a color this saturated sits outside most CMYK gamuts and will print duller than it looks here.

Is #6df42f warm or cool?

Neutral — it scores 55 on a scale where 0 is the warmest orange and 100 the coolest azure. Nudged warmer it becomes #B5F42F; nudged cooler, #2DF637.

Which Tailwind color is closest to #6df42f?

The lime family — its 500 step is #84cc16, ΔE2000 9.8 away. That is a visible difference, so define #6df42f as a custom token rather than reaching for the built-in.

How do I use #6df42f in Tailwind CSS?

Inline it as an arbitrary value with bg-[#6df42f] or text-[#6df42f], or register the whole ramp under theme.extend.colors.brand so you get bg-brand-500 and friends. The generated 50–950 scale on this page is ready to paste into your config.

What is #6df42f with 50% opacity?

rgba(109, 244, 47, 0.5), or #6df42f80 in eight-digit hex. Over white that composites to #B6FA97; over black, #377A18.

Is #6df42f a web-safe color?

No. The nearest web-safe colour is #66FF33, ΔE2000 2.3 away. The palette only matters for legacy displays and some email clients now.

What does the color #6df42f mean?

As a green, it reads safe, growing, natural. Green means go, well, and grown. It carries finance, sustainability and health with almost no explanation needed. At this chroma the effect is amplified — it will dominate whatever sits beside it.

What gradient works with #6df42f?

The safest is same-hue elevation: linear-gradient(135deg, #96F769, #6df42f 45%, #2B7906). For more colour, a short hue run to #12F374 keeps it rich without turning muddy.

Work with #6df42f in the Color Lab

Every tool opens with this colour already loaded.

Every value on this page is computed from #6df42f at request time — conversions, contrast ratios and ΔE distances are calculated, never looked up.