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green · neutral

#7ffc39

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

Token name suggestion: Studio Fern

RGB
127, 252, 57
HSL
99°, 97%, 61%
CMYK
50, 0, 77, 1
Luminance
0.7443

#7ffc39 is a balanced electric green, 99° on the wheel and 54/100 on the cool side. Put black text on it (15.89:1). As text it scores 1.32:1 on white — use #318602 instead. Nearest name is Lawn Green, nearest Tailwind family is lime.

hsl(99 97% 61%)rgb(127 252 57)Base step 500AAA inkNeutral

At a glance

Every number on this page in one read: what #7ffc39 is made of, how bright it looks, and which way it leans.

Hex
#7ffc39
Hue
99°
green
Saturation
97%
electric
Lightness
61%
balanced
Brightness
99%
HSV value
Perceived
81%
weighted brightness
Luminance
0.7443
WCAG relative
Temperature
Neutral
54/100 cool
Color family
Green
Tone
Electric
Best ink
Black
15.89:1
Closest name
Lawn Green
ΔE2000 2
Chroma
100.2
LCH, 0–130ish
OKLCH L
0.884
perceptual lightness
Tailwind
lime
500 · ΔE 11
Web-safe
#66FF33
nearest of 216
Where it sits
Hue99° of 360°
Saturation97%
Lightness61%
Saturation × lightness field

Left edge is grey, right edge is full chroma; top is white, bottom is black. The dot is #7ffc39.

Temperature
Warm ← → Cool54% 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
Red6%
Green94%
Blue0%

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

Every format

HEX#7ffc39
HEX (8-digit)#7ffc39ff
RGBrgb(127, 252, 57)
RGBArgba(127, 252, 57, 1)
HSLhsl(99, 97%, 61%)
HSV / HSBhsv(98, 77%, 99%)
HWBhwb(99 22% 1%)
CMYKcmyk(50%, 0%, 77%, 1%)
LABlab(89.1 -65.5 75.9)
LCHlch(89.1 100.2 130.8)
OKLCHoklch(0.884 0.248 137.2)
XYZ (D65)xyz(44.30, 74.43, 15.90)
Decimal8387641
Display P3color(display-p3 0.498 0.988 0.224)
Web-safe#66FF33

Copy-ready code

every platformclick to select
/* CSS */
color: #7ffc39;
background-color: #7ffc39;
/* CSS custom property */
--brand: #7ffc39;
/* Tailwind (arbitrary) */
class="text-[#7ffc39] bg-[#7ffc39]"
/* SCSS */
$brand: #7ffc39;
/* SwiftUI */
Color(red: 0.498, green: 0.988, blue: 0.224)
/* UIKit */
UIColor(red: 0.498, green: 0.988, blue: 0.224, alpha: 1)
/* Android XML */
<color name="brand">#7FFC39</color>
/* Android Compose */
Color(0xFF7FFC39)
/* Flutter */
Color(0xFF7FFC39)
/* Python / OpenCV (BGR) */
(57, 252, 127)
/* Python / PIL (RGB) */
(127, 252, 57)
/* Java AWT */
new Color(127, 252, 57)
/* .NET */
Color.FromArgb(255, 127, 252, 57)
/* OpenGL / Unity (0–1) */
(0.4980f, 0.9882f, 0.2235f, 1f)
/* LaTeX */
\definecolor{brand}{RGB}{127,252,57}
modern cssclick to select
/* mix without leaving CSS */
background: color-mix(in oklab, #7ffc39 85%, white);
border-color: color-mix(in oklab, #7ffc39 40%, transparent);
/* theme-aware in one line */
color: light-dark(#2E7E02, #DCEED3);
/* relative colour syntax */
--hover: hsl(from #7ffc39 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: #F6FDF1;
  --brand-100: #ECFCE4;
  --brand-200: #D6FBC1;
  --brand-300: #B7FD90;
  --brand-400: #94FC59;
  --brand-500: #7ffc39;
  --brand-600: #59F104;
  --brand-700: #4AC903;
  --brand-800: #3BA102;
  --brand-900: #2E7407;
  --brand-950: #1D4804;
  --brand: #7ffc39;
  --brand-ink: #000000;
  --brand-surface: #F6FAF4;
  --brand-border: #D0EDC0;
  --brand-hover: #68FB16;
  --brand-pressed: #56EA04;
}
@media (prefers-color-scheme: dark) {
  :root {
    --brand-surface: #1A2414;
    --brand-ink: #DCEED3;
  }
}
tailwind.config.jsclick to select
theme: {
  extend: {
    colors: {
      brand: {
        50: '#F6FDF1',
        100: '#ECFCE4',
        200: '#D6FBC1',
        300: '#B7FD90',
        400: '#94FC59',
        500: '#7ffc39',
        600: '#59F104',
        700: '#4AC903',
        800: '#3BA102',
        900: '#2E7407',
        950: '#1D4804',
        DEFAULT: '#7ffc39',
      },
    },
  },
}
scss mapclick to select
$brand: (
  '50': #F6FDF1,
  '100': #ECFCE4,
  '200': #D6FBC1,
  '300': #B7FD90,
  '400': #94FC59,
  '500': #7ffc39,
  '600': #59F104,
  '700': #4AC903,
  '800': #3BA102,
  '900': #2E7407,
  '950': #1D4804,
);
$brand-base: #7ffc39;
$brand-ink: #000000;

@function brand($step) { @return map-get($brand, $step); }
w3c design tokens (json)click to select
{
  "color": {
    "brand": {
      "50": { "$value": "#F6FDF1", "$type": "color" },
      "100": { "$value": "#ECFCE4", "$type": "color" },
      "200": { "$value": "#D6FBC1", "$type": "color" },
      "300": { "$value": "#B7FD90", "$type": "color" },
      "400": { "$value": "#94FC59", "$type": "color" },
      "500": { "$value": "#7ffc39", "$type": "color" },
      "600": { "$value": "#59F104", "$type": "color" },
      "700": { "$value": "#4AC903", "$type": "color" },
      "800": { "$value": "#3BA102", "$type": "color" },
      "900": { "$value": "#2E7407", "$type": "color" },
      "950": { "$value": "#1D4804", "$type": "color" }
    },
    "brandInk": { "$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 #7ffc39 · 15.89:1
Use #000000AAA at every size.
Aa
12px
Aa
16px
Aa
24px
Aa
White text · 1.32:1
AA fail · AA large fail · AAA fail
Aa
Black text · 15.89:1 · recommended
AA pass · AA large pass · AAA pass
Reading the other direction: #7ffc39 as text scores 1.32:1 on white and 15.89:1 on black.
Best tinted ink on it, if plain black or white feels flat: #2E7E02 at 3.87:1.

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
#318602 · 4.62:1
AA on white−34% L
#318602
The quick fox
#246201 · 7.44:1
AAA on white−41% L
#246201
The quick fox
#7ffc39 · 15.89:1
AA on blackalready passes
#7ffc39
The quick fox
#7ffc39 · 15.89:1
AAA on blackalready passes
#7ffc39

Large text — 24px regular or 18.66px bold and above — only needs 3:1, so #3EA903 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
#7ffc39 on white: 1.32:1
AA ✗ fail · AA-large · AAA
Aa
#7ffc39 on black: 15.89:1
AA ✓ pass · AA-large · AAA
Against the neutral ladder

Contrast is symmetric, so each row covers both directions: #7ffc39 as text on that neutral, and that neutral as text on #7ffc39.

NeutralRatioBoth directions
White1.32:1AaAa
Slate 501.26:1AaAa
Slate 1001.21:1AaAa
Slate 2001.07:1AaAa
Slate 3001.12:1AaAa
Slate 4001.94:1AaAa
Slate 5003.60:1AaAa
Slate 6005.73:1AaAa
Slate 7007.83:1AaAa
Slate 80011.07:1AaAa
Slate 90013.50:1AaAa
Black15.89:1AaAa
Colour vision deficiency
true color
protanopia · #FFE600
deuteranopia · #F4DC4F
tritanopia · #77F3D8

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. #7ffc39 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.

#F6FDF1
#ECFCE4
#D6FBC1
#B7FD90
#94FC59
#7ffc39
#59F104
#4AC903
#3BA102
#2E7407
#1D4804
Base = 500Lightest = 50 · #F6FDF1Darkest = 950 · #1D4804Text 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 0.062 137.2);
  --brand-100: oklch(0.94 0.099 137.2);
  --brand-200: oklch(0.88 0.149 137.2);
  --brand-300: oklch(0.80 0.193 137.2);
  --brand-400: oklch(0.72 0.228 137.2);
  --brand-500: oklch(0.64 0.248 137.2);
  --brand-600: oklch(0.56 0.248 137.2);
  --brand-700: oklch(0.48 0.233 137.2);
  --brand-800: oklch(0.40 0.208 137.2);
  --brand-900: oklch(0.32 0.174 137.2);
  --brand-950: oklch(0.24 0.136 137.2);
}

Colors that work with #7ffc39

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#D0EDC0
Hairlines and dividers
Muted text#679B4B
Captions on the surface
Accent#8536FF
Second voice, not a rival
Dark variant#2E7E02
Hover, pressed, headers
Light variant#EFFFE6
Selected rows, tints
Dark surface#1A2414
Dark-mode background
Hover#68FB16
One step down in lightness
Pressed#56EA04
Two steps down
Disabled#D0DCC9
Chroma pulled out
Focus ring#8BFF4A
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 #7ffc39

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 #2E7E02
Safe as a 1px border on white
No — use #3EA903

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
  • Weight39/100
  • 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#B639FC
Analogous left#E0FC39
Analogous right#39FC55
Split-complement 1#5539FC
Split-complement 2#FC39E0
Triadic 1#397FFC
Triadic 2#FC397F
Tetradic#39E0FC
On the wheel
Base+30°−30°+120°+240°+180°99°

#7ffc39 sits at 99°. Every dot is a harmony position and links to its own page in the table alongside.

RGB percentages

Red49.8%
Green98.8%
Blue22.4%
R · 0–255
127
0x7f
G · 0–255
252
0xfc
B · 0–255
57
0x39

CMYK percentages

Cyan49.6%
Magenta0.0%
Yellow77.4%
Key (black)1.2%

Total ink coverage is 128%. Most commercial presses cap around 300% — above that, sheets stop drying properly.

Color previews

#7ffc39 text on a black background

contrast 15.89:1

Card sample

#7ffc39 text on a white background

contrast 1.32:1

Card sample

#7ffc39 on grey

1.21:1

#7ffc39 on its own surface

1.25:1

#7ffc39 on its dark surface

12.16:1

CSS3 live lab

Text font color

The quick brown fox

color: #7ffc39;
Background color
Panel with #7ffc39 background
background-color: #7ffc39;
Text shadow — hex

Glowing headline

text-shadow: 2px 2px 8px #7ffc39;
Text shadow — RGB

Soft neon halo

text-shadow: 0 0 14px rgba(127, 252, 57, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(127, 252, 57, 0.45);
Border & gradient
Gradient panel
border: 3px solid #7ffc39;
background: linear-gradient(135deg, #7ffc39, #39FC75);
Gradient text

Gradient headline

background: linear-gradient(90deg, #7ffc39, #39FCA6);
-webkit-background-clip: text;
color: transparent;
Focus ring
Focused control
outline: 2px solid #7ffc39;
outline-offset: 3px;
Underline & caret

Marked up text

text-decoration-color: #7ffc39;
caret-color: #7ffc39;
Left rule
Pull quote or callout
border-left: 4px solid #7ffc39;
Ring + tint
Selected chip
background: #EFFFE6;
box-shadow: inset 0 0 0 2px #7ffc39;
Conic badge
68%
background: conic-gradient(#7ffc39 68%, #e2e8f0 0);

Transparency

What each alpha value actually composites to. The top row is #7ffc39 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(127, 252, 57, 0.5)
rgb(127 252 57 / 50%)
#7ffc3980
hsl(99 97% 61% / 50%)
color-mix(in srgb, #7ffc39 50%, transparent)
Alpha8-digit hexFlat on white
10%#7ffc391a#F2FFEB
20%#7ffc3933#E5FED7
40%#7ffc3966#CCFEB0
60%#7ffc3999#B2FD88
80%#7ffc39cc#99FD61

Gradients from #7ffc39

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, #A6FD75, #7ffc39 45%, #2E7E02);
Duotone
A short hue run reads richer than a flat fill
background: linear-gradient(120deg, #7ffc39, #1BFC73);
Complement sweep
Loud — keep it behind large type only
background: linear-gradient(90deg, #7ffc39, #B639FC);
Spotlight
Hero panels and app headers
background: radial-gradient(120% 120% at 20% 0%, #B9FD93 0%, #7ffc39 45%, #2E7E02 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%, #F4FD6B 0%, transparent 60%), radial-gradient(55% 55% at 85% 15%, #57FC7C 0%, transparent 60%), radial-gradient(70% 70% at 50% 95%, #2E7E02 0%, transparent 65%), #7ffc39;

Monochromatic scale

Palettes built from #7ffc39

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.

#7ffc39 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 15.89:1.

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.

#7ffc39, answered

What color is #7ffc39?

#7ffc39 is a balanced electric green, closest to Lawn Green (ΔE2000 2). It sits at 99° on the hue wheel with 97% saturation and 61% lightness, which reads as neutral.

What is the RGB value of #7ffc39?

rgb(127, 252, 57) — 127 red, 252 green and 57 blue out of 255, or 49.8% / 98.8% / 22.4% by channel.

What is #7ffc39 in HSL and HSV?

hsl(99, 97%, 61%) and hsv(98, 77%, 99%). HSL is what CSS takes; HSV is what your design tool's picker shows, which is why the saturation numbers rarely match.

Is #7ffc39 a light or a dark color?

It is a light color. Relative luminance is 0.7443 and perceived brightness is 81%, so black text on it reaches 15.89:1.

Should I use black or white text on #7ffc39?

Black. It scores 15.89:1 against #7ffc39, versus 1.32:1 for white — AAA at any size.

Is #7ffc39 accessible on a white background?

#7ffc39 on white scores 1.32:1, which fails WCAG AA at every size. Darken it to #318602 to reach 4.5:1, or #246201 for 7:1.

What is the complementary color of #7ffc39?

#B639FC sits directly opposite on the wheel. Softer options are the split-complements #5539FC and #FC39E0, which give the same contrast with far less vibration.

What colors go well with #7ffc39?

For interface work: #F6FAF4 as the surface, #D0EDC0 for borders, #679B4B for secondary text, #8536FF as an accent and #2E7E02 for hover and pressed states. For a palette, the analogous pair #E0FC39 and #39FC55 stays calm, while #B639FC is the loudest partner.

What is #7ffc39 in CMYK for printing?

cmyk(50%, 0%, 77%, 1%). 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 #7ffc39 warm or cool?

Neutral — it scores 54 on a scale where 0 is the warmest orange and 100 the coolest azure. Nudged warmer it becomes #C6FC39; nudged cooler, #37FE39.

Which Tailwind color is closest to #7ffc39?

The lime family — its 500 step is #84cc16, ΔE2000 11 away. That is a visible difference, so define #7ffc39 as a custom token rather than reaching for the built-in.

How do I use #7ffc39 in Tailwind CSS?

Inline it as an arbitrary value with bg-[#7ffc39] or text-[#7ffc39], 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 #7ffc39 with 50% opacity?

rgba(127, 252, 57, 0.5), or #7ffc3980 in eight-digit hex. Over white that composites to #BFFE9C; over black, #407E1D.

Is #7ffc39 a web-safe color?

No. The nearest web-safe colour is #66FF33, ΔE2000 1.9 away. The palette only matters for legacy displays and some email clients now.

What does the color #7ffc39 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 #7ffc39?

The safest is same-hue elevation: linear-gradient(135deg, #A6FD75, #7ffc39 45%, #2E7E02). For more colour, a short hue run to #1BFC73 keeps it rich without turning muddy.

Work with #7ffc39 in the Color Lab

Every tool opens with this colour already loaded.

Every value on this page is computed from #7ffc39 at request time — conversions, contrast ratios and ΔE distances are calculated, never looked up.