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green · cool

#4fec74

a balanced, electric green · cool · closest name: Spring Green

Token name suggestion: True Fern

RGB
79, 236, 116
HSL
134°, 81%, 62%
CMYK
67, 0, 51, 8
Luminance
0.6291

#4fec74 is a balanced electric green, 134° on the wheel and 68/100 on the cool side. Put black text on it (13.58:1). As text it scores 1.55:1 on white — use #0F892C instead. Nearest name is Spring Green, nearest Tailwind family is green.

hsl(134 81% 62%)rgb(79 236 116)Base step 400AAA inkCool

At a glance

Every number on this page in one read: what #4fec74 is made of, how bright it looks, and which way it leans.

Hex
#4fec74
Hue
134°
green
Saturation
81%
electric
Lightness
62%
balanced
Brightness
93%
HSV value
Perceived
75%
weighted brightness
Luminance
0.6291
WCAG relative
Temperature
Cool
68/100 cool
Color family
Green
Tone
Electric
Best ink
Black
13.58:1
Closest name
Spring Green
ΔE2000 4.4
Chroma
80.0
LCH, 0–130ish
OKLCH L
0.835
perceptual lightness
Tailwind
green
500 · ΔE 9.6
Web-safe
#66FF66
nearest of 216
Where it sits
Hue134° of 360°
Saturation81%
Lightness62%
Saturation × lightness field

Left edge is grey, right edge is full chroma; top is white, bottom is black. The dot is #4fec74.

Temperature
Warm ← → Cool68% cool

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

Luminance by channel
Red3%
Green95%
Blue2%

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

Every format

HEX#4fec74
HEX (8-digit)#4fec74ff
RGBrgb(79, 236, 116)
RGBArgba(79, 236, 116, 1)
HSLhsl(134, 81%, 62%)
HSV / HSBhsv(134, 67%, 93%)
HWBhwb(134 31% 7%)
CMYKcmyk(67%, 0%, 51%, 8%)
LABlab(83.4 -65.4 46.1)
LCHlch(83.4 80.0 144.8)
OKLCHoklch(0.835 0.209 147.8)
XYZ (D65)xyz(36.37, 62.91, 26.75)
Decimal5237876
Display P3color(display-p3 0.310 0.925 0.455)
Web-safe#66FF66

Copy-ready code

every platformclick to select
/* CSS */
color: #4fec74;
background-color: #4fec74;
/* CSS custom property */
--brand: #4fec74;
/* Tailwind (arbitrary) */
class="text-[#4fec74] bg-[#4fec74]"
/* SCSS */
$brand: #4fec74;
/* SwiftUI */
Color(red: 0.310, green: 0.925, blue: 0.455)
/* UIKit */
UIColor(red: 0.310, green: 0.925, blue: 0.455, alpha: 1)
/* Android XML */
<color name="brand">#4FEC74</color>
/* Android Compose */
Color(0xFF4FEC74)
/* Flutter */
Color(0xFF4FEC74)
/* Python / OpenCV (BGR) */
(116, 236, 79)
/* Python / PIL (RGB) */
(79, 236, 116)
/* Java AWT */
new Color(79, 236, 116)
/* .NET */
Color.FromArgb(255, 79, 236, 116)
/* OpenGL / Unity (0–1) */
(0.3098f, 0.9255f, 0.4549f, 1f)
/* LaTeX */
\definecolor{brand}{RGB}{79,236,116}
modern cssclick to select
/* mix without leaving CSS */
background: color-mix(in oklab, #4fec74 85%, white);
border-color: color-mix(in oklab, #4fec74 40%, transparent);
/* theme-aware in one line */
color: light-dark(#0C7325, #D3EED9);
/* relative colour syntax */
--hover: hsl(from #4fec74 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: #F3FCF5;
  --brand-100: #E6F9EB;
  --brand-200: #C6F5D1;
  --brand-300: #9AF4AF;
  --brand-400: #4fec74;
  --brand-500: #34E95F;
  --brand-600: #18DD46;
  --brand-700: #14B83A;
  --brand-800: #10932F;
  --brand-900: #106B25;
  --brand-950: #0A4317;
  --brand: #4fec74;
  --brand-ink: #000000;
  --brand-surface: #F4FAF6;
  --brand-border: #C0EDCA;
  --brand-hover: #2FE95B;
  --brand-pressed: #18DC46;
}
@media (prefers-color-scheme: dark) {
  :root {
    --brand-surface: #142418;
    --brand-ink: #D3EED9;
  }
}
tailwind.config.jsclick to select
theme: {
  extend: {
    colors: {
      brand: {
        50: '#F3FCF5',
        100: '#E6F9EB',
        200: '#C6F5D1',
        300: '#9AF4AF',
        400: '#4fec74',
        500: '#34E95F',
        600: '#18DD46',
        700: '#14B83A',
        800: '#10932F',
        900: '#106B25',
        950: '#0A4317',
        DEFAULT: '#4fec74',
      },
    },
  },
}
scss mapclick to select
$brand: (
  '50': #F3FCF5,
  '100': #E6F9EB,
  '200': #C6F5D1,
  '300': #9AF4AF,
  '400': #4fec74,
  '500': #34E95F,
  '600': #18DD46,
  '700': #14B83A,
  '800': #10932F,
  '900': #106B25,
  '950': #0A4317,
);
$brand-base: #4fec74;
$brand-ink: #000000;

@function brand($step) { @return map-get($brand, $step); }
w3c design tokens (json)click to select
{
  "color": {
    "brand": {
      "50": { "$value": "#F3FCF5", "$type": "color" },
      "100": { "$value": "#E6F9EB", "$type": "color" },
      "200": { "$value": "#C6F5D1", "$type": "color" },
      "300": { "$value": "#9AF4AF", "$type": "color" },
      "400": { "$value": "#4fec74", "$type": "color" },
      "500": { "$value": "#34E95F", "$type": "color" },
      "600": { "$value": "#18DD46", "$type": "color" },
      "700": { "$value": "#14B83A", "$type": "color" },
      "800": { "$value": "#10932F", "$type": "color" },
      "900": { "$value": "#106B25", "$type": "color" },
      "950": { "$value": "#0A4317", "$type": "color" }
    },
    "brandInk": { "$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 #4fec74 · 13.58:1
Use #000000AAA at every size.
Aa
12px
Aa
16px
Aa
24px
Aa
White text · 1.55:1
AA fail · AA large fail · AAA fail
Aa
Black text · 13.58:1 · recommended
AA pass · AA large pass · AAA pass
Reading the other direction: #4fec74 as text scores 1.55:1 on white and 13.58:1 on black.
Best tinted ink on it, if plain black or white feels flat: #0C7325 at 3.89:1.

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
#0F892C · 4.53:1
AA on white−32% L
#0F892C
The quick fox
#0B6420 · 7.35:1
AAA on white−40% L
#0B6420
The quick fox
#4fec74 · 13.58:1
AA on blackalready passes
#4fec74
The quick fox
#4fec74 · 13.58:1
AAA on blackalready passes
#4fec74

Large text — 24px regular or 18.66px bold and above — only needs 3:1, so #12A936 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
#4fec74 on white: 1.55:1
AA ✗ fail · AA-large · AAA
Aa
#4fec74 on black: 13.58:1
AA ✓ pass · AA-large · AAA
Against the neutral ladder

Contrast is symmetric, so each row covers both directions: #4fec74 as text on that neutral, and that neutral as text on #4fec74.

NeutralRatioBoth directions
White1.55:1AaAa
Slate 501.48:1AaAa
Slate 1001.41:1AaAa
Slate 2001.25:1AaAa
Slate 3001.04:1AaAa
Slate 4001.66:1AaAa
Slate 5003.08:1AaAa
Slate 6004.90:1AaAa
Slate 7006.70:1AaAa
Slate 8009.46:1AaAa
Slate 90011.55:1AaAa
Black13.58:1AaAa
Colour vision deficiency
true color
protanopia · #EED86A
deuteranopia · #DBCB7D
tritanopia · #08E7D0

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. #4fec74 is pinned to step 400; the rest hold its hue and let saturation ease off at the extremes so the pale end never turns neon.

#F3FCF5
#E6F9EB
#C6F5D1
#9AF4AF
#4fec74
#34E95F
#18DD46
#14B83A
#10932F
#106B25
#0A4317
Base = 400Lightest = 50 · #F3FCF5Darkest = 950 · #0A4317Text 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 0.052 147.8);
  --brand-100: oklch(0.94 0.083 147.8);
  --brand-200: oklch(0.88 0.125 147.8);
  --brand-300: oklch(0.80 0.163 147.8);
  --brand-400: oklch(0.72 0.192 147.8);
  --brand-500: oklch(0.64 0.209 147.8);
  --brand-600: oklch(0.56 0.209 147.8);
  --brand-700: oklch(0.48 0.196 147.8);
  --brand-800: oklch(0.40 0.175 147.8);
  --brand-900: oklch(0.32 0.146 147.8);
  --brand-950: oklch(0.24 0.115 147.8);
}

Colors that work with #4fec74

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#F4FAF6
Tinted page background
Border#C0EDCA
Hairlines and dividers
Muted text#4B9B5D
Captions on the surface
Accent#B910BC
Second voice, not a rival
Dark variant#0C7325
Hover, pressed, headers
Light variant#E8FDED
Selected rows, tints
Dark surface#142418
Dark-mode background
Hover#2FE95B
One step down in lightness
Pressed#18DC46
Two steps down
Disabled#CDDFD1
Chroma pulled out
Focus ring#59F77E
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 #4fec74

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 #0C7325
Safe as a 1px border on white
No — use #12A936

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
  • Weight38/100
  • TemperatureCool
  • ApproachabilityReserved

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#EC4FC7
Analogous left#79EC4F
Analogous right#4FECC2
Split-complement 1#C24FEC
Split-complement 2#EC4F79
Triadic 1#744FEC
Triadic 2#EC744F
Tetradic#4F79EC
On the wheel
Base+30°−30°+120°+240°+180°134°

#4fec74 sits at 134°. Every dot is a harmony position and links to its own page in the table alongside.

RGB percentages

Red31.0%
Green92.5%
Blue45.5%
R · 0–255
79
0x4f
G · 0–255
236
0xec
B · 0–255
116
0x74

CMYK percentages

Cyan66.5%
Magenta0.0%
Yellow50.8%
Key (black)7.5%

Total ink coverage is 125%. Most commercial presses cap around 300% — above that, sheets stop drying properly.

Color previews

#4fec74 text on a black background

contrast 13.58:1

Card sample

#4fec74 text on a white background

contrast 1.55:1

Card sample

#4fec74 on grey

1.41:1

#4fec74 on its own surface

1.46:1

#4fec74 on its dark surface

10.49:1

CSS3 live lab

Text font color

The quick brown fox

color: #4fec74;
Background color
Panel with #4fec74 background
background-color: #4fec74;
Text shadow — hex

Glowing headline

text-shadow: 2px 2px 8px #4fec74;
Text shadow — RGB

Soft neon halo

text-shadow: 0 0 14px rgba(79, 236, 116, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(79, 236, 116, 0.45);
Border & gradient
Gradient panel
border: 3px solid #4fec74;
background: linear-gradient(135deg, #4fec74, #4FECDD);
Gradient text

Gradient headline

background: linear-gradient(90deg, #4fec74, #4FD4EC);
-webkit-background-clip: text;
color: transparent;
Focus ring
Focused control
outline: 2px solid #4fec74;
outline-offset: 3px;
Underline & caret

Marked up text

text-decoration-color: #4fec74;
caret-color: #4fec74;
Left rule
Pull quote or callout
border-left: 4px solid #4fec74;
Ring + tint
Selected chip
background: #E8FDED;
box-shadow: inset 0 0 0 2px #4fec74;
Conic badge
68%
background: conic-gradient(#4fec74 68%, #e2e8f0 0);

Transparency

What each alpha value actually composites to. The top row is #4fec74 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(79, 236, 116, 0.5)
rgb(79 236 116 / 50%)
#4fec7480
hsl(134 81% 62% / 50%)
color-mix(in srgb, #4fec74 50%, transparent)
Alpha8-digit hexFlat on white
10%#4fec741a#EDFDF1
20%#4fec7433#DCFBE3
40%#4fec7466#B9F7C7
60%#4fec7499#95F4AC
80%#4fec74cc#72F090

Gradients from #4fec74

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, #86F2A0, #4fec74 45%, #0C7325);
Duotone
A short hue run reads richer than a flat fill
background: linear-gradient(120deg, #4fec74, #34E9E6);
Complement sweep
Loud — keep it behind large type only
background: linear-gradient(90deg, #4fec74, #EC4FC7);
Spotlight
Hero panels and app headers
background: radial-gradient(120% 120% at 20% 0%, #A2F5B6 0%, #4fec74 45%, #0C7325 100%);
Soft wash
Section backgrounds that stay readable
background: linear-gradient(180deg, #F4FAF6, #ffffff);
Mesh
Ambient background, no image weight
background: radial-gradient(60% 60% at 15% 20%, #A6F17D 0%, transparent 60%), radial-gradient(55% 55% at 85% 15%, #6BEFD7 0%, transparent 60%), radial-gradient(70% 70% at 50% 95%, #0C7325 0%, transparent 65%), #4fec74;

Monochromatic scale

Palettes built from #4fec74

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.

#4fec74 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 13.58:1.

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.

#4fec74, answered

What color is #4fec74?

#4fec74 is a balanced electric green, closest to Spring Green (ΔE2000 4.4). It sits at 134° on the hue wheel with 81% saturation and 62% lightness, which reads as cool.

What is the RGB value of #4fec74?

rgb(79, 236, 116) — 79 red, 236 green and 116 blue out of 255, or 31% / 92.5% / 45.5% by channel.

What is #4fec74 in HSL and HSV?

hsl(134, 81%, 62%) and hsv(134, 67%, 93%). HSL is what CSS takes; HSV is what your design tool's picker shows, which is why the saturation numbers rarely match.

Is #4fec74 a light or a dark color?

It is a light color. Relative luminance is 0.6291 and perceived brightness is 75%, so black text on it reaches 13.58:1.

Should I use black or white text on #4fec74?

Black. It scores 13.58:1 against #4fec74, versus 1.55:1 for white — AAA at any size.

Is #4fec74 accessible on a white background?

#4fec74 on white scores 1.55:1, which fails WCAG AA at every size. Darken it to #0F892C to reach 4.5:1, or #0B6420 for 7:1.

What is the complementary color of #4fec74?

#EC4FC7 sits directly opposite on the wheel. Softer options are the split-complements #C24FEC and #EC4F79, which give the same contrast with far less vibration.

What colors go well with #4fec74?

For interface work: #F4FAF6 as the surface, #C0EDCA for borders, #4B9B5D for secondary text, #B910BC as an accent and #0C7325 for hover and pressed states. For a palette, the analogous pair #79EC4F and #4FECC2 stays calm, while #EC4FC7 is the loudest partner.

What is #4fec74 in CMYK for printing?

cmyk(67%, 0%, 51%, 8%). 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 #4fec74 warm or cool?

Cool — it scores 68 on a scale where 0 is the warmest orange and 100 the coolest azure. Nudged warmer it becomes #64EC4F; nudged cooler, #4DEEAE.

Which Tailwind color is closest to #4fec74?

The green family — its 500 step is #22c55e, ΔE2000 9.6 away. That is a visible difference, so define #4fec74 as a custom token rather than reaching for the built-in.

How do I use #4fec74 in Tailwind CSS?

Inline it as an arbitrary value with bg-[#4fec74] or text-[#4fec74], 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 #4fec74 with 50% opacity?

rgba(79, 236, 116, 0.5), or #4fec7480 in eight-digit hex. Over white that composites to #A7F6BA; over black, #28763A.

Is #4fec74 a web-safe color?

No. The nearest web-safe colour is #66FF66, ΔE2000 5.5 away. The palette only matters for legacy displays and some email clients now.

What does the color #4fec74 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 #4fec74?

The safest is same-hue elevation: linear-gradient(135deg, #86F2A0, #4fec74 45%, #0C7325). For more colour, a short hue run to #34E9E6 keeps it rich without turning muddy.

Work with #4fec74 in the Color Lab

Every tool opens with this colour already loaded.

Every value on this page is computed from #4fec74 at request time — conversions, contrast ratios and ΔE distances are calculated, never looked up.