Skip to content
green · warm

#9fd40c

a dark, electric green · warm · closest name: Yellow Green

Token name suggestion: Dusk Fern

RGB
159, 212, 12
HSL
76°, 89%, 44%
CMYK
25, 0, 94, 17
Luminance
0.5448

#9fd40c is a dark electric green, 76° on the wheel and 38/100 on the cool side. Put black text on it (11.90:1). As text it scores 1.77:1 on white — use #5E7D07 instead. Nearest name is Yellow Green, nearest Tailwind family is lime.

hsl(76 89% 44%)rgb(159 212 12)Base step 700AAA inkWarm

At a glance

Every number on this page in one read: what #9fd40c is made of, how bright it looks, and which way it leans.

Hex
#9fd40c
Hue
76°
green
Saturation
89%
electric
Lightness
44%
dark
Brightness
83%
HSV value
Perceived
72%
weighted brightness
Luminance
0.5448
WCAG relative
Temperature
Warm
38/100 cool
Color family
Green
Tone
Electric
Best ink
Black
11.90:1
Closest name
Yellow Green
ΔE2000 2.9
Chroma
86.6
LCH, 0–130ish
OKLCH L
0.803
perceptual lightness
Tailwind
lime
500 · ΔE 4.3
Web-safe
#99CC00
nearest of 216
Where it sits
Hue76° of 360°
Saturation89%
Lightness44%
Saturation × lightness field

Left edge is grey, right edge is full chroma; top is white, bottom is black. The dot is #9fd40c.

Temperature
Warm ← → Cool38% cool

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

Luminance by channel
Red14%
Green86%
Blue0%

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

Every format

HEX#9fd40c
HEX (8-digit)#9fd40cff
RGBrgb(159, 212, 12)
RGBArgba(159, 212, 12, 1)
HSLhsl(76, 89%, 44%)
HSV / HSBhsv(76, 94%, 83%)
HWBhwb(76 5% 17%)
CMYKcmyk(25%, 0%, 94%, 17%)
LABlab(78.7 -40.3 76.7)
LCHlch(78.7 86.6 117.7)
OKLCHoklch(0.803 0.202 125.8)
XYZ (D65)xyz(37.91, 54.48, 8.87)
Decimal10474508
Display P3color(display-p3 0.624 0.831 0.047)
Web-safe#99CC00

Copy-ready code

every platformclick to select
/* CSS */
color: #9fd40c;
background-color: #9fd40c;
/* CSS custom property */
--brand: #9fd40c;
/* Tailwind (arbitrary) */
class="text-[#9fd40c] bg-[#9fd40c]"
/* SCSS */
$brand: #9fd40c;
/* SwiftUI */
Color(red: 0.624, green: 0.831, blue: 0.047)
/* UIKit */
UIColor(red: 0.624, green: 0.831, blue: 0.047, alpha: 1)
/* Android XML */
<color name="brand">#9FD40C</color>
/* Android Compose */
Color(0xFF9FD40C)
/* Flutter */
Color(0xFF9FD40C)
/* Python / OpenCV (BGR) */
(12, 212, 159)
/* Python / PIL (RGB) */
(159, 212, 12)
/* Java AWT */
new Color(159, 212, 12)
/* .NET */
Color.FromArgb(255, 159, 212, 12)
/* OpenGL / Unity (0–1) */
(0.6235f, 0.8314f, 0.0471f, 1f)
/* LaTeX */
\definecolor{brand}{RGB}{159,212,12}
modern cssclick to select
/* mix without leaving CSS */
background: color-mix(in oklab, #9fd40c 85%, white);
border-color: color-mix(in oklab, #9fd40c 40%, transparent);
/* theme-aware in one line */
color: light-dark(#5B7907, #E7EED3);
/* relative colour syntax */
--hover: hsl(from #9fd40c 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: #FAFDF2;
  --brand-100: #F5FBE5;
  --brand-200: #EAF8C4;
  --brand-300: #DEF995;
  --brand-400: #CEF660;
  --brand-500: #BEF32B;
  --brand-600: #AEE80D;
  --brand-700: #9fd40c;
  --brand-800: #749A09;
  --brand-900: #556F0B;
  --brand-950: #354607;
  --brand: #9fd40c;
  --brand-ink: #000000;
  --brand-surface: #F9FAF4;
  --brand-border: #E1EDC0;
  --brand-hover: #86B20A;
  --brand-pressed: #6C9008;
}
@media (prefers-color-scheme: dark) {
  :root {
    --brand-surface: #202414;
    --brand-ink: #E7EED3;
  }
}
tailwind.config.jsclick to select
theme: {
  extend: {
    colors: {
      brand: {
        50: '#FAFDF2',
        100: '#F5FBE5',
        200: '#EAF8C4',
        300: '#DEF995',
        400: '#CEF660',
        500: '#BEF32B',
        600: '#AEE80D',
        700: '#9fd40c',
        800: '#749A09',
        900: '#556F0B',
        950: '#354607',
        DEFAULT: '#9fd40c',
      },
    },
  },
}
scss mapclick to select
$brand: (
  '50': #FAFDF2,
  '100': #F5FBE5,
  '200': #EAF8C4,
  '300': #DEF995,
  '400': #CEF660,
  '500': #BEF32B,
  '600': #AEE80D,
  '700': #9fd40c,
  '800': #749A09,
  '900': #556F0B,
  '950': #354607,
);
$brand-base: #9fd40c;
$brand-ink: #000000;

@function brand($step) { @return map-get($brand, $step); }
w3c design tokens (json)click to select
{
  "color": {
    "brand": {
      "50": { "$value": "#FAFDF2", "$type": "color" },
      "100": { "$value": "#F5FBE5", "$type": "color" },
      "200": { "$value": "#EAF8C4", "$type": "color" },
      "300": { "$value": "#DEF995", "$type": "color" },
      "400": { "$value": "#CEF660", "$type": "color" },
      "500": { "$value": "#BEF32B", "$type": "color" },
      "600": { "$value": "#AEE80D", "$type": "color" },
      "700": { "$value": "#9fd40c", "$type": "color" },
      "800": { "$value": "#749A09", "$type": "color" },
      "900": { "$value": "#556F0B", "$type": "color" },
      "950": { "$value": "#354607", "$type": "color" }
    },
    "brandInk": { "$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 #9fd40c · 11.90:1
Use #000000AAA at every size.
Aa
12px
Aa
16px
Aa
24px
Aa
White text · 1.77:1
AA fail · AA large fail · AAA fail
Aa
Black text · 11.90:1 · recommended
AA pass · AA large pass · AAA pass
Reading the other direction: #9fd40c as text scores 1.77:1 on white and 11.90:1 on black.
Best tinted ink on it, if plain black or white feels flat: #5B7907 at 2.84:1.

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
#5E7D07 · 4.76:1
AA on white−18% L
#5E7D07
The quick fox
#486005 · 7.12:1
AAA on white−24% L
#486005
The quick fox
#9fd40c · 11.90:1
AA on blackalready passes
#9fd40c
The quick fox
#9fd40c · 11.90:1
AAA on blackalready passes
#9fd40c

Large text — 24px regular or 18.66px bold and above — only needs 3:1, so #779F09 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
#9fd40c on white: 1.77:1
AA ✗ fail · AA-large · AAA
Aa
#9fd40c on black: 11.90:1
AA ✓ pass · AA-large · AAA
Against the neutral ladder

Contrast is symmetric, so each row covers both directions: #9fd40c as text on that neutral, and that neutral as text on #9fd40c.

NeutralRatioBoth directions
White1.77:1AaAa
Slate 501.69:1AaAa
Slate 1001.61:1AaAa
Slate 2001.43:1AaAa
Slate 3001.19:1AaAa
Slate 4001.45:1AaAa
Slate 5002.70:1AaAa
Slate 6004.29:1AaAa
Slate 7005.87:1AaAa
Slate 8008.29:1AaAa
Slate 90010.11:1AaAa
Black11.90:1AaAa
Colour vision deficiency
true color
protanopia · #E0C500
deuteranopia · #D9C22E
tritanopia · #A7C9B4

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. #9fd40c is pinned to step 700; the rest hold its hue and let saturation ease off at the extremes so the pale end never turns neon.

#FAFDF2
#F5FBE5
#EAF8C4
#DEF995
#CEF660
#BEF32B
#AEE80D
#9fd40c
#749A09
#556F0B
#354607
Base = 700Lightest = 50 · #FAFDF2Darkest = 950 · #354607Text 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 0.050 125.8);
  --brand-100: oklch(0.94 0.081 125.8);
  --brand-200: oklch(0.88 0.121 125.8);
  --brand-300: oklch(0.80 0.157 125.8);
  --brand-400: oklch(0.72 0.186 125.8);
  --brand-500: oklch(0.64 0.202 125.8);
  --brand-600: oklch(0.56 0.202 125.8);
  --brand-700: oklch(0.48 0.190 125.8);
  --brand-800: oklch(0.40 0.170 125.8);
  --brand-900: oklch(0.32 0.141 125.8);
  --brand-950: oklch(0.24 0.111 125.8);
}

Colors that work with #9fd40c

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#F9FAF4
Tinted page background
Border#E1EDC0
Hairlines and dividers
Muted text#869B4B
Captions on the surface
Accent#0B08D8
Second voice, not a rival
Dark variant#5B7907
Hover, pressed, headers
Light variant#F8FEE7
Selected rows, tints
Dark surface#202414
Dark-mode background
Hover#86B20A
One step down in lightness
Pressed#6C9008
Two steps down
Disabled#B1BB95
Chroma pulled out
Focus ring#B3F301
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 #9fd40c

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
  • Headers, footers and dark-mode surfaces
  • Brand accents, badges and data highlights
Use with care
  • Text of any size on white — fails WCAG AA
  • Full-page backgrounds — tiring over long sessions
  • Black text placed on it
  • 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 #5B7907
Safe as a 1px border on white
No — use #779F09

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 low lightness adds weight and formality.

Worth knowing

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

Reads as
  • FormalityHigh
  • EnergyHigh
  • Weight56/100
  • TemperatureWarm
  • ApproachabilityHigh

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#410CD4
Analogous left#D4A50C
Analogous right#3BD40C
Split-complement 1#0C3BD4
Split-complement 2#A50CD4
Triadic 1#0C9FD4
Triadic 2#D40C9F
Tetradic#0CD4A5
On the wheel
Base+30°−30°+120°+240°+180°76°

#9fd40c sits at 76°. Every dot is a harmony position and links to its own page in the table alongside.

RGB percentages

Red62.4%
Green83.1%
Blue4.7%
R · 0–255
159
0x9f
G · 0–255
212
0xd4
B · 0–255
12
0x0c

CMYK percentages

Cyan25.0%
Magenta0.0%
Yellow94.3%
Key (black)16.9%

Total ink coverage is 136%. Most commercial presses cap around 300% — above that, sheets stop drying properly.

Color previews

#9fd40c text on a black background

contrast 11.90:1

Card sample

#9fd40c text on a white background

contrast 1.77:1

Card sample

#9fd40c on grey

1.61:1

#9fd40c on its own surface

1.68:1

#9fd40c on its dark surface

8.99:1

CSS3 live lab

Text font color

The quick brown fox

color: #9fd40c;
Background color
Panel with #9fd40c background
background-color: #9fd40c;
Text shadow — hex

Glowing headline

text-shadow: 2px 2px 8px #9fd40c;
Text shadow — RGB

Soft neon halo

text-shadow: 0 0 14px rgba(159, 212, 12, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(159, 212, 12, 0.45);
Border & gradient
Gradient panel
border: 3px solid #9fd40c;
background: linear-gradient(135deg, #9fd40c, #1AD40C);
Gradient text

Gradient headline

background: linear-gradient(90deg, #9fd40c, #0CD430);
-webkit-background-clip: text;
color: transparent;
Focus ring
Focused control
outline: 2px solid #9fd40c;
outline-offset: 3px;
Underline & caret

Marked up text

text-decoration-color: #9fd40c;
caret-color: #9fd40c;
Left rule
Pull quote or callout
border-left: 4px solid #9fd40c;
Ring + tint
Selected chip
background: #F8FEE7;
box-shadow: inset 0 0 0 2px #9fd40c;
Conic badge
68%
background: conic-gradient(#9fd40c 68%, #e2e8f0 0);

Transparency

What each alpha value actually composites to. The top row is #9fd40c 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(159, 212, 12, 0.5)
rgb(159 212 12 / 50%)
#9fd40c80
hsl(76 89% 44% / 50%)
color-mix(in srgb, #9fd40c 50%, transparent)
Alpha8-digit hexFlat on white
10%#9fd40c1a#F5FBE7
20%#9fd40c33#ECF6CE
40%#9fd40c66#D9EE9E
60%#9fd40c99#C5E56D
80%#9fd40ccc#B2DD3D

Gradients from #9fd40c

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, #BEF32A, #9fd40c 45%, #5B7907);
Duotone
A short hue run reads richer than a flat fill
background: linear-gradient(120deg, #9fd40c, #0AB70D);
Complement sweep
Loud — keep it behind large type only
background: linear-gradient(90deg, #9fd40c, #410CD4);
Spotlight
Hero panels and app headers
background: radial-gradient(120% 120% at 20% 0%, #C7F547 0%, #9fd40c 45%, #5B7907 100%);
Soft wash
Section backgrounds that stay readable
background: linear-gradient(180deg, #F9FAF4, #ffffff);
Mesh
Ambient background, no image weight
background: radial-gradient(60% 60% at 15% 20%, #F2B020 0%, transparent 60%), radial-gradient(55% 55% at 85% 15%, #30F10E 0%, transparent 60%), radial-gradient(70% 70% at 50% 95%, #5B7907 0%, transparent 65%), #9fd40c;

Monochromatic scale

Palettes built from #9fd40c

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.

#9fd40c 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 11.90:1.

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.

#9fd40c, answered

What color is #9fd40c?

#9fd40c is a dark electric green, closest to Yellow Green (ΔE2000 2.9). It sits at 76° on the hue wheel with 89% saturation and 44% lightness, which reads as warm.

What is the RGB value of #9fd40c?

rgb(159, 212, 12) — 159 red, 212 green and 12 blue out of 255, or 62.4% / 83.1% / 4.7% by channel.

What is #9fd40c in HSL and HSV?

hsl(76, 89%, 44%) and hsv(76, 94%, 83%). HSL is what CSS takes; HSV is what your design tool's picker shows, which is why the saturation numbers rarely match.

Is #9fd40c a light or a dark color?

It is a light color. Relative luminance is 0.5448 and perceived brightness is 72%, so black text on it reaches 11.90:1.

Should I use black or white text on #9fd40c?

Black. It scores 11.90:1 against #9fd40c, versus 1.77:1 for white — AAA at any size.

Is #9fd40c accessible on a white background?

#9fd40c on white scores 1.77:1, which fails WCAG AA at every size. Darken it to #5E7D07 to reach 4.5:1, or #486005 for 7:1.

What is the complementary color of #9fd40c?

#410CD4 sits directly opposite on the wheel. Softer options are the split-complements #0C3BD4 and #A50CD4, which give the same contrast with far less vibration.

What colors go well with #9fd40c?

For interface work: #F9FAF4 as the surface, #E1EDC0 for borders, #869B4B for secondary text, #0B08D8 as an accent and #5B7907 for hover and pressed states. For a palette, the analogous pair #D4A50C and #3BD40C stays calm, while #410CD4 is the loudest partner.

What is #9fd40c in CMYK for printing?

cmyk(25%, 0%, 94%, 17%). 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 #9fd40c warm or cool?

Warm — it scores 38 on a scale where 0 is the warmest orange and 100 the coolest azure. Nudged warmer it becomes #D4C00C; nudged cooler, #55D60A.

Which Tailwind color is closest to #9fd40c?

The lime family — its 500 step is #84cc16, ΔE2000 4.3 away. That is a visible difference, so define #9fd40c as a custom token rather than reaching for the built-in.

How do I use #9fd40c in Tailwind CSS?

Inline it as an arbitrary value with bg-[#9fd40c] or text-[#9fd40c], 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 #9fd40c with 50% opacity?

rgba(159, 212, 12, 0.5), or #9fd40c80 in eight-digit hex. Over white that composites to #CFEA86; over black, #506A06.

Is #9fd40c a web-safe color?

No. The nearest web-safe colour is #99CC00, ΔE2000 2 away. The palette only matters for legacy displays and some email clients now.

What does the color #9fd40c 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 #9fd40c?

The safest is same-hue elevation: linear-gradient(135deg, #BEF32A, #9fd40c 45%, #5B7907). For more colour, a short hue run to #0AB70D keeps it rich without turning muddy.

Work with #9fd40c in the Color Lab

Every tool opens with this colour already loaded.

Every value on this page is computed from #9fd40c at request time — conversions, contrast ratios and ΔE distances are calculated, never looked up.