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green · cool

#78df63

a balanced, vivid green · cool · closest name: Light Green

Token name suggestion: Atlas Basil

RGB
120, 223, 99
HSL
110°, 66%, 63%
CMYK
46, 0, 56, 13
Luminance
0.5767

#78df63 is a balanced vivid green, 110° on the wheel and 58/100 on the cool side. Put black text on it (12.53:1). As text it scores 1.68:1 on white — use #2E881C instead. Nearest name is Light Green, nearest Tailwind family is lime.

hsl(110 66% 63%)rgb(120 223 99)Base step 400AAA inkCool

At a glance

Every number on this page in one read: what #78df63 is made of, how bright it looks, and which way it leans.

Hex
#78df63
Hue
110°
green
Saturation
66%
vivid
Lightness
63%
balanced
Brightness
87%
HSV value
Perceived
73%
weighted brightness
Luminance
0.5767
WCAG relative
Temperature
Cool
58/100 cool
Color family
Green
Tone
Vivid
Best ink
Black
12.53:1
Closest name
Light Green
ΔE2000 5.9
Chroma
73.6
LCH, 0–130ish
OKLCH L
0.814
perceptual lightness
Tailwind
lime
500 · ΔE 8.6
Web-safe
#66CC66
nearest of 216
Where it sits
Hue110° of 360°
Saturation66%
Lightness63%
Saturation × lightness field

Left edge is grey, right edge is full chroma; top is white, bottom is black. The dot is #78df63.

Temperature
Warm ← → Cool58% 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
Red7%
Green92%
Blue2%

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

Every format

HEX#78df63
HEX (8-digit)#78df63ff
RGBrgb(120, 223, 99)
RGBArgba(120, 223, 99, 1)
HSLhsl(110, 66%, 63%)
HSV / HSBhsv(110, 56%, 87%)
HWBhwb(110 39% 13%)
CMYKcmyk(46%, 0%, 56%, 13%)
LABlab(80.5 -53.1 50.9)
LCHlch(80.5 73.6 136.2)
OKLCHoklch(0.814 0.189 140.3)
XYZ (D65)xyz(36.38, 57.67, 21.02)
Decimal7921507
Display P3color(display-p3 0.471 0.875 0.388)
Web-safe#66CC66

Copy-ready code

every platformclick to select
/* CSS */
color: #78df63;
background-color: #78df63;
/* CSS custom property */
--brand: #78df63;
/* Tailwind (arbitrary) */
class="text-[#78df63] bg-[#78df63]"
/* SCSS */
$brand: #78df63;
/* SwiftUI */
Color(red: 0.471, green: 0.875, blue: 0.388)
/* UIKit */
UIColor(red: 0.471, green: 0.875, blue: 0.388, alpha: 1)
/* Android XML */
<color name="brand">#78DF63</color>
/* Android Compose */
Color(0xFF78DF63)
/* Flutter */
Color(0xFF78DF63)
/* Python / OpenCV (BGR) */
(99, 223, 120)
/* Python / PIL (RGB) */
(120, 223, 99)
/* Java AWT */
new Color(120, 223, 99)
/* .NET */
Color.FromArgb(255, 120, 223, 99)
/* OpenGL / Unity (0–1) */
(0.4706f, 0.8745f, 0.3882f, 1f)
/* LaTeX */
\definecolor{brand}{RGB}{120,223,99}
modern cssclick to select
/* mix without leaving CSS */
background: color-mix(in oklab, #78df63 85%, white);
border-color: color-mix(in oklab, #78df63 40%, transparent);
/* theme-aware in one line */
color: light-dark(#246A16, #D7EED3);
/* relative colour syntax */
--hover: hsl(from #78df63 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: #F5FBF3;
  --brand-100: #EBF8E8;
  --brand-200: #D1F1CB;
  --brand-300: #AEECA2;
  --brand-400: #78df63;
  --brand-500: #5ED945;
  --brand-600: #45CB2A;
  --brand-700: #3AA923;
  --brand-800: #2E871C;
  --brand-900: #256218;
  --brand-950: #173D0F;
  --brand: #78df63;
  --brand-ink: #000000;
  --brand-surface: #F5FAF4;
  --brand-border: #C7EDC0;
  --brand-hover: #5ED945;
  --brand-pressed: #47D02B;
}
@media (prefers-color-scheme: dark) {
  :root {
    --brand-surface: #162414;
    --brand-ink: #D7EED3;
  }
}
tailwind.config.jsclick to select
theme: {
  extend: {
    colors: {
      brand: {
        50: '#F5FBF3',
        100: '#EBF8E8',
        200: '#D1F1CB',
        300: '#AEECA2',
        400: '#78df63',
        500: '#5ED945',
        600: '#45CB2A',
        700: '#3AA923',
        800: '#2E871C',
        900: '#256218',
        950: '#173D0F',
        DEFAULT: '#78df63',
      },
    },
  },
}
scss mapclick to select
$brand: (
  '50': #F5FBF3,
  '100': #EBF8E8,
  '200': #D1F1CB,
  '300': #AEECA2,
  '400': #78df63,
  '500': #5ED945,
  '600': #45CB2A,
  '700': #3AA923,
  '800': #2E871C,
  '900': #256218,
  '950': #173D0F,
);
$brand-base: #78df63;
$brand-ink: #000000;

@function brand($step) { @return map-get($brand, $step); }
w3c design tokens (json)click to select
{
  "color": {
    "brand": {
      "50": { "$value": "#F5FBF3", "$type": "color" },
      "100": { "$value": "#EBF8E8", "$type": "color" },
      "200": { "$value": "#D1F1CB", "$type": "color" },
      "300": { "$value": "#AEECA2", "$type": "color" },
      "400": { "$value": "#78df63", "$type": "color" },
      "500": { "$value": "#5ED945", "$type": "color" },
      "600": { "$value": "#45CB2A", "$type": "color" },
      "700": { "$value": "#3AA923", "$type": "color" },
      "800": { "$value": "#2E871C", "$type": "color" },
      "900": { "$value": "#256218", "$type": "color" },
      "950": { "$value": "#173D0F", "$type": "color" }
    },
    "brandInk": { "$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 #78df63 · 12.53:1
Use #000000AAA at every size.
Aa
12px
Aa
16px
Aa
24px
Aa
White text · 1.68:1
AA fail · AA large fail · AAA fail
Aa
Black text · 12.53:1 · recommended
AA pass · AA large pass · AAA pass
Reading the other direction: #78df63 as text scores 1.68:1 on white and 12.53:1 on black.
Best tinted ink on it, if plain black or white feels flat: #246A16 at 3.98:1.

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
#2E881C · 4.51:1
AA on white−31% L
#2E881C
The quick fox
#236615 · 7.04:1
AAA on white−39% L
#236615
The quick fox
#78df63 · 12.53:1
AA on blackalready passes
#78df63
The quick fox
#78df63 · 12.53:1
AAA on blackalready passes
#78df63

Large text — 24px regular or 18.66px bold and above — only needs 3:1, so #3AAA23 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
#78df63 on white: 1.68:1
AA ✗ fail · AA-large · AAA
Aa
#78df63 on black: 12.53:1
AA ✓ pass · AA-large · AAA
Against the neutral ladder

Contrast is symmetric, so each row covers both directions: #78df63 as text on that neutral, and that neutral as text on #78df63.

NeutralRatioBoth directions
White1.68:1AaAa
Slate 501.60:1AaAa
Slate 1001.53:1AaAa
Slate 2001.36:1AaAa
Slate 3001.13:1AaAa
Slate 4001.53:1AaAa
Slate 5002.84:1AaAa
Slate 6004.52:1AaAa
Slate 7006.18:1AaAa
Slate 8008.73:1AaAa
Slate 90010.66:1AaAa
Black12.53:1AaAa
Colour vision deficiency
true color
protanopia · #E5CE57
deuteranopia · #D6C46C
tritanopia · #6ED9C4

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. #78df63 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.

#F5FBF3
#EBF8E8
#D1F1CB
#AEECA2
#78df63
#5ED945
#45CB2A
#3AA923
#2E871C
#256218
#173D0F
Base = 400Lightest = 50 · #F5FBF3Darkest = 950 · #173D0FText step on white = 800
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 0.047 140.3);
  --brand-100: oklch(0.94 0.076 140.3);
  --brand-200: oklch(0.88 0.113 140.3);
  --brand-300: oklch(0.80 0.147 140.3);
  --brand-400: oklch(0.72 0.174 140.3);
  --brand-500: oklch(0.64 0.189 140.3);
  --brand-600: oklch(0.56 0.189 140.3);
  --brand-700: oklch(0.48 0.178 140.3);
  --brand-800: oklch(0.40 0.159 140.3);
  --brand-900: oklch(0.32 0.132 140.3);
  --brand-950: oklch(0.24 0.104 140.3);
}

Colors that work with #78df63

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#F5FAF4
Tinted page background
Border#C7EDC0
Hairlines and dividers
Muted text#589B4B
Captions on the surface
Accent#AB5FE3
Second voice, not a rival
Dark variant#246A16
Hover, pressed, headers
Light variant#EDFBEA
Selected rows, tints
Dark surface#162414
Dark-mode background
Hover#5ED945
One step down in lightness
Pressed#47D02B
Two steps down
Disabled#D3E1D1
Chroma pulled out
Focus ring#81EB6B
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 #78df63

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 #246A16
Safe as a 1px border on white
No — use #3AAA23

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.

This is a confident chroma: strong enough to lead a brand, restrained enough to live in an interface all day. 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
  • FormalityMedium
  • EnergyMedium-high
  • Weight37/100
  • TemperatureCool
  • 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#CA63DF
Analogous left#B6DF63
Analogous right#63DF8C
Split-complement 1#8C63DF
Split-complement 2#DF63B6
Triadic 1#6378DF
Triadic 2#DF6378
Tetradic#63B6DF
On the wheel
Base+30°−30°+120°+240°+180°110°

#78df63 sits at 110°. Every dot is a harmony position and links to its own page in the table alongside.

RGB percentages

Red47.1%
Green87.5%
Blue38.8%
R · 0–255
120
0x78
G · 0–255
223
0xdf
B · 0–255
99
0x63

CMYK percentages

Cyan46.2%
Magenta0.0%
Yellow55.6%
Key (black)12.5%

Total ink coverage is 114%. Most commercial presses cap around 300% — above that, sheets stop drying properly.

Color previews

#78df63 text on a black background

contrast 12.53:1

Card sample

#78df63 text on a white background

contrast 1.68:1

Card sample

#78df63 on grey

1.53:1

#78df63 on its own surface

1.58:1

#78df63 on its dark surface

9.67:1

CSS3 live lab

Text font color

The quick brown fox

color: #78df63;
Background color
Panel with #78df63 background
background-color: #78df63;
Text shadow — hex

Glowing headline

text-shadow: 2px 2px 8px #78df63;
Text shadow — RGB

Soft neon halo

text-shadow: 0 0 14px rgba(120, 223, 99, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(120, 223, 99, 0.45);
Border & gradient
Gradient panel
border: 3px solid #78df63;
background: linear-gradient(135deg, #78df63, #63DFA0);
Gradient text

Gradient headline

background: linear-gradient(90deg, #78df63, #63DFC0);
-webkit-background-clip: text;
color: transparent;
Focus ring
Focused control
outline: 2px solid #78df63;
outline-offset: 3px;
Underline & caret

Marked up text

text-decoration-color: #78df63;
caret-color: #78df63;
Left rule
Pull quote or callout
border-left: 4px solid #78df63;
Ring + tint
Selected chip
background: #EDFBEA;
box-shadow: inset 0 0 0 2px #78df63;
Conic badge
68%
background: conic-gradient(#78df63 68%, #e2e8f0 0);

Transparency

What each alpha value actually composites to. The top row is #78df63 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(120, 223, 99, 0.5)
rgb(120 223 99 / 50%)
#78df6380
hsl(110 66% 63% / 50%)
color-mix(in srgb, #78df63 50%, transparent)
Alpha8-digit hexFlat on white
10%#78df631a#F2FCEF
20%#78df6333#E4F9E0
40%#78df6366#C9F2C1
60%#78df6399#AEECA1
80%#78df63cc#93E582

Gradients from #78df63

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, #A4E996, #78df63 45%, #246A16);
Duotone
A short hue run reads richer than a flat fill
background: linear-gradient(120deg, #78df63, #49DA9D);
Complement sweep
Loud — keep it behind large type only
background: linear-gradient(90deg, #78df63, #CA63DF);
Spotlight
Hero panels and app headers
background: radial-gradient(120% 120% at 20% 0%, #BAEFAF 0%, #78df63 45%, #246A16 100%);
Soft wash
Section backgrounds that stay readable
background: linear-gradient(180deg, #F5FAF4, #ffffff);
Mesh
Ambient background, no image weight
background: radial-gradient(60% 60% at 15% 20%, #D1E88D 0%, transparent 60%), radial-gradient(55% 55% at 85% 15%, #7CE4A7 0%, transparent 60%), radial-gradient(70% 70% at 50% 95%, #246A16 0%, transparent 65%), #78df63;

Monochromatic scale

Palettes built from #78df63

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.

#78df63 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

Converts to four-color process without much drama. Proof it anyway.

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 12.53:1.

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.

#78df63, answered

What color is #78df63?

#78df63 is a balanced vivid green, closest to Light Green (ΔE2000 5.9). It sits at 110° on the hue wheel with 66% saturation and 63% lightness, which reads as cool.

What is the RGB value of #78df63?

rgb(120, 223, 99) — 120 red, 223 green and 99 blue out of 255, or 47.1% / 87.5% / 38.8% by channel.

What is #78df63 in HSL and HSV?

hsl(110, 66%, 63%) and hsv(110, 56%, 87%). HSL is what CSS takes; HSV is what your design tool's picker shows, which is why the saturation numbers rarely match.

Is #78df63 a light or a dark color?

It is a light color. Relative luminance is 0.5767 and perceived brightness is 73%, so black text on it reaches 12.53:1.

Should I use black or white text on #78df63?

Black. It scores 12.53:1 against #78df63, versus 1.68:1 for white — AAA at any size.

Is #78df63 accessible on a white background?

#78df63 on white scores 1.68:1, which fails WCAG AA at every size. Darken it to #2E881C to reach 4.5:1, or #236615 for 7:1.

What is the complementary color of #78df63?

#CA63DF sits directly opposite on the wheel. Softer options are the split-complements #8C63DF and #DF63B6, which give the same contrast with far less vibration.

What colors go well with #78df63?

For interface work: #F5FAF4 as the surface, #C7EDC0 for borders, #589B4B for secondary text, #AB5FE3 as an accent and #246A16 for hover and pressed states. For a palette, the analogous pair #B6DF63 and #63DF8C stays calm, while #CA63DF is the loudest partner.

What is #78df63 in CMYK for printing?

cmyk(46%, 0%, 56%, 13%). This is a screen-to-ink approximation — ask your printer for a proof before committing to a run.

Is #78df63 warm or cool?

Cool — it scores 58 on a scale where 0 is the warmest orange and 100 the coolest azure. Nudged warmer it becomes #A5DF63; nudged cooler, #61E17A.

Which Tailwind color is closest to #78df63?

The lime family — its 500 step is #84cc16, ΔE2000 8.6 away. That is a visible difference, so define #78df63 as a custom token rather than reaching for the built-in.

How do I use #78df63 in Tailwind CSS?

Inline it as an arbitrary value with bg-[#78df63] or text-[#78df63], 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 #78df63 with 50% opacity?

rgba(120, 223, 99, 0.5), or #78df6380 in eight-digit hex. Over white that composites to #BCEFB1; over black, #3C7032.

Is #78df63 a web-safe color?

No. The nearest web-safe colour is #66CC66, ΔE2000 5.4 away. The palette only matters for legacy displays and some email clients now.

What does the color #78df63 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 #78df63?

The safest is same-hue elevation: linear-gradient(135deg, #A4E996, #78df63 45%, #246A16). For more colour, a short hue run to #49DA9D keeps it rich without turning muddy.

Work with #78df63 in the Color Lab

Every tool opens with this colour already loaded.

Every value on this page is computed from #78df63 at request time — conversions, contrast ratios and ΔE distances are calculated, never looked up.