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green · cool

#81fdad

a light, electric green · cool · closest name: Pale Green

Token name suggestion: Linen Moss

RGB
129, 253, 173
HSL
141°, 97%, 75%
CMYK
49, 0, 32, 1
Luminance
0.7793

#81fdad is a light electric green, 141° on the wheel and 71/100 on the cool side. Put black text on it (16.59:1). As text it scores 1.27:1 on white — use #028731 instead. Nearest name is Pale Green, nearest Tailwind family is green.

hsl(141 97% 75%)rgb(129 253 173)Base step 300AAA inkCool

At a glance

Every number on this page in one read: what #81fdad is made of, how bright it looks, and which way it leans.

Hex
#81fdad
Hue
141°
green
Saturation
97%
electric
Lightness
75%
light
Brightness
99%
HSV value
Perceived
84%
weighted brightness
Luminance
0.7793
WCAG relative
Temperature
Cool
71/100 cool
Color family
Green
Tone
Electric
Best ink
Black
16.59:1
Closest name
Pale Green
ΔE2000 4.9
Chroma
58.9
LCH, 0–130ish
OKLCH L
0.902
perceptual lightness
Tailwind
green
500 · ΔE 14.8
Web-safe
#99FF99
nearest of 216
Where it sits
Hue141° of 360°
Saturation97%
Lightness75%
Saturation × lightness field

Left edge is grey, right edge is full chroma; top is white, bottom is black. The dot is #81fdad.

Temperature
Warm ← → Cool71% 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
Red6%
Green90%
Blue4%

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

Every format

HEX#81fdad
HEX (8-digit)#81fdadff
RGBrgb(129, 253, 173)
RGBArgba(129, 253, 173, 1)
HSLhsl(141, 97%, 75%)
HSV / HSBhsv(141, 49%, 99%)
HWBhwb(141 51% 1%)
CMYKcmyk(49%, 0%, 32%, 1%)
LABlab(90.8 -51.9 27.9)
LCHlch(90.8 58.9 151.8)
OKLCHoklch(0.902 0.158 153.6)
XYZ (D65)xyz(51.72, 77.93, 51.84)
Decimal8519085
Display P3color(display-p3 0.506 0.992 0.678)
Web-safe#99FF99

Copy-ready code

every platformclick to select
/* CSS */
color: #81fdad;
background-color: #81fdad;
/* CSS custom property */
--brand: #81fdad;
/* Tailwind (arbitrary) */
class="text-[#81fdad] bg-[#81fdad]"
/* SCSS */
$brand: #81fdad;
/* SwiftUI */
Color(red: 0.506, green: 0.992, blue: 0.678)
/* UIKit */
UIColor(red: 0.506, green: 0.992, blue: 0.678, alpha: 1)
/* Android XML */
<color name="brand">#81FDAD</color>
/* Android Compose */
Color(0xFF81FDAD)
/* Flutter */
Color(0xFF81FDAD)
/* Python / OpenCV (BGR) */
(173, 253, 129)
/* Python / PIL (RGB) */
(129, 253, 173)
/* Java AWT */
new Color(129, 253, 173)
/* .NET */
Color.FromArgb(255, 129, 253, 173)
/* OpenGL / Unity (0–1) */
(0.5059f, 0.9922f, 0.6784f, 1f)
/* LaTeX */
\definecolor{brand}{RGB}{129,253,173}
modern cssclick to select
/* mix without leaving CSS */
background: color-mix(in oklab, #81fdad 85%, white);
border-color: color-mix(in oklab, #81fdad 40%, transparent);
/* theme-aware in one line */
color: light-dark(#027E2E, #D3EEDC);
/* relative colour syntax */
--hover: hsl(from #81fdad 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: #F1FDF6;
  --brand-100: #E4FCEC;
  --brand-200: #C1FBD5;
  --brand-300: #81fdad;
  --brand-400: #59FC93;
  --brand-500: #22FC6F;
  --brand-600: #04F158;
  --brand-700: #03C949;
  --brand-800: #03A13B;
  --brand-900: #07742D;
  --brand-950: #04481C;
  --brand: #81fdad;
  --brand-ink: #000000;
  --brand-surface: #F4FAF6;
  --brand-border: #C0EDD0;
  --brand-hover: #5EFC96;
  --brand-pressed: #3BFC7F;
}
@media (prefers-color-scheme: dark) {
  :root {
    --brand-surface: #14241A;
    --brand-ink: #D3EEDC;
  }
}
tailwind.config.jsclick to select
theme: {
  extend: {
    colors: {
      brand: {
        50: '#F1FDF6',
        100: '#E4FCEC',
        200: '#C1FBD5',
        300: '#81fdad',
        400: '#59FC93',
        500: '#22FC6F',
        600: '#04F158',
        700: '#03C949',
        800: '#03A13B',
        900: '#07742D',
        950: '#04481C',
        DEFAULT: '#81fdad',
      },
    },
  },
}
scss mapclick to select
$brand: (
  '50': #F1FDF6,
  '100': #E4FCEC,
  '200': #C1FBD5,
  '300': #81fdad,
  '400': #59FC93,
  '500': #22FC6F,
  '600': #04F158,
  '700': #03C949,
  '800': #03A13B,
  '900': #07742D,
  '950': #04481C,
);
$brand-base: #81fdad;
$brand-ink: #000000;

@function brand($step) { @return map-get($brand, $step); }
w3c design tokens (json)click to select
{
  "color": {
    "brand": {
      "50": { "$value": "#F1FDF6", "$type": "color" },
      "100": { "$value": "#E4FCEC", "$type": "color" },
      "200": { "$value": "#C1FBD5", "$type": "color" },
      "300": { "$value": "#81fdad", "$type": "color" },
      "400": { "$value": "#59FC93", "$type": "color" },
      "500": { "$value": "#22FC6F", "$type": "color" },
      "600": { "$value": "#04F158", "$type": "color" },
      "700": { "$value": "#03C949", "$type": "color" },
      "800": { "$value": "#03A13B", "$type": "color" },
      "900": { "$value": "#07742D", "$type": "color" },
      "950": { "$value": "#04481C", "$type": "color" }
    },
    "brandInk": { "$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 #81fdad · 16.59:1
Use #000000AAA at every size.
Aa
12px
Aa
16px
Aa
24px
Aa
White text · 1.27:1
AA fail · AA large fail · AAA fail
Aa
Black text · 16.59:1 · recommended
AA pass · AA large pass · AAA pass
Reading the other direction: #81fdad as text scores 1.27:1 on white and 16.59:1 on black.
Best tinted ink on it, if plain black or white feels flat: #027E2E at 4.12:1.

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
#028731 · 4.65:1
AA on white−48% L
#028731
The quick fox
#026424 · 7.37:1
AAA on white−55% L
#026424
The quick fox
#81fdad · 16.59:1
AA on blackalready passes
#81fdad
The quick fox
#81fdad · 16.59:1
AAA on blackalready passes
#81fdad

Large text — 24px regular or 18.66px bold and above — only needs 3:1, so #03AA3E 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
#81fdad on white: 1.27:1
AA ✗ fail · AA-large · AAA
Aa
#81fdad on black: 16.59:1
AA ✓ pass · AA-large · AAA
Against the neutral ladder

Contrast is symmetric, so each row covers both directions: #81fdad as text on that neutral, and that neutral as text on #81fdad.

NeutralRatioBoth directions
White1.27:1AaAa
Slate 501.21:1AaAa
Slate 1001.16:1AaAa
Slate 2001.03:1AaAa
Slate 3001.17:1AaAa
Slate 4002.03:1AaAa
Slate 5003.76:1AaAa
Slate 6005.99:1AaAa
Slate 7008.18:1AaAa
Slate 80011.55:1AaAa
Slate 90014.10:1AaAa
Black16.59:1AaAa
Colour vision deficiency
true color
protanopia · #FDECA8
deuteranopia · #EBE0B2
tritanopia · #63FAE8

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. #81fdad is pinned to step 300; the rest hold its hue and let saturation ease off at the extremes so the pale end never turns neon.

#F1FDF6
#E4FCEC
#C1FBD5
#81fdad
#59FC93
#22FC6F
#04F158
#03C949
#03A13B
#07742D
#04481C
Base = 300Lightest = 50 · #F1FDF6Darkest = 950 · #04481CText 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 0.040 153.6);
  --brand-100: oklch(0.94 0.063 153.6);
  --brand-200: oklch(0.88 0.095 153.6);
  --brand-300: oklch(0.80 0.123 153.6);
  --brand-400: oklch(0.72 0.145 153.6);
  --brand-500: oklch(0.64 0.158 153.6);
  --brand-600: oklch(0.56 0.158 153.6);
  --brand-700: oklch(0.48 0.149 153.6);
  --brand-800: oklch(0.40 0.133 153.6);
  --brand-900: oklch(0.32 0.111 153.6);
  --brand-950: oklch(0.24 0.087 153.6);
}

Colors that work with #81fdad

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#C0EDD0
Hairlines and dividers
Muted text#4B9B67
Captions on the surface
Accent#CC00B7
Second voice, not a rival
Dark variant#027E2E
Hover, pressed, headers
Light variant#E6FFEF
Selected rows, tints
Dark surface#14241A
Dark-mode background
Hover#5EFC96
One step down in lightness
Pressed#3BFC7F
Two steps down
Disabled#F3F7F4
Chroma pulled out
Focus ring#93FFBA
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 #81fdad

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
  • Card and section backgrounds
  • 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
  • White 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 #027E2E
Safe as a 1px border on white
No — use #03AA3E

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 lightness keeps it airy and approachable.

Worth knowing

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

Reads as
  • FormalityLow
  • EnergyHigh
  • Weight25/100
  • 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#FD81D1
Analogous left#93FD81
Analogous right#81FDEB
Split-complement 1#EB81FD
Split-complement 2#FD8193
Triadic 1#AD81FD
Triadic 2#FDAD81
Tetradic#8193FD
On the wheel
Base+30°−30°+120°+240°+180°141°

#81fdad sits at 141°. Every dot is a harmony position and links to its own page in the table alongside.

RGB percentages

Red50.6%
Green99.2%
Blue67.8%
R · 0–255
129
0x81
G · 0–255
253
0xfd
B · 0–255
173
0xad

CMYK percentages

Cyan49.0%
Magenta0.0%
Yellow31.6%
Key (black)0.8%

Total ink coverage is 81%. Most commercial presses cap around 300% — above that, sheets stop drying properly.

Color previews

#81fdad text on a black background

contrast 16.59:1

Card sample

#81fdad text on a white background

contrast 1.27:1

Card sample

#81fdad on grey

1.16:1

#81fdad on its own surface

1.20:1

#81fdad on its dark surface

12.79:1

CSS3 live lab

Text font color

The quick brown fox

color: #81fdad;
Background color
Panel with #81fdad background
background-color: #81fdad;
Text shadow — hex

Glowing headline

text-shadow: 2px 2px 8px #81fdad;
Text shadow — RGB

Soft neon halo

text-shadow: 0 0 14px rgba(129, 253, 173, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(129, 253, 173, 0.45);
Border & gradient
Gradient panel
border: 3px solid #81fdad;
background: linear-gradient(135deg, #81fdad, #81FAFD);
Gradient text

Gradient headline

background: linear-gradient(90deg, #81fdad, #81DBFD);
-webkit-background-clip: text;
color: transparent;
Focus ring
Focused control
outline: 2px solid #81fdad;
outline-offset: 3px;
Underline & caret

Marked up text

text-decoration-color: #81fdad;
caret-color: #81fdad;
Left rule
Pull quote or callout
border-left: 4px solid #81fdad;
Ring + tint
Selected chip
background: #E6FFEF;
box-shadow: inset 0 0 0 2px #81fdad;
Conic badge
68%
background: conic-gradient(#81fdad 68%, #e2e8f0 0);

Transparency

What each alpha value actually composites to. The top row is #81fdad 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(129, 253, 173, 0.5)
rgb(129 253 173 / 50%)
#81fdad80
hsl(141 97% 75% / 50%)
color-mix(in srgb, #81fdad 50%, transparent)
Alpha8-digit hexFlat on white
10%#81fdad1a#F2FFF7
20%#81fdad33#E6FFEF
40%#81fdad66#CDFEDE
60%#81fdad99#B3FECE
80%#81fdadcc#9AFDBD

Gradients from #81fdad

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, #BDFED4, #81fdad 45%, #027E2E);
Duotone
A short hue run reads richer than a flat fill
background: linear-gradient(120deg, #81fdad, #63ECFD);
Complement sweep
Loud — keep it behind large type only
background: linear-gradient(90deg, #81fdad, #FD81D1);
Spotlight
Hero panels and app headers
background: radial-gradient(120% 120% at 20% 0%, #DBFEE8 0%, #81fdad 45%, #027E2E 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%, #C4FEB3 0%, transparent 60%), radial-gradient(55% 55% at 85% 15%, #9FFDF8 0%, transparent 60%), radial-gradient(70% 70% at 50% 95%, #027E2E 0%, transparent 65%), #81fdad;

Monochromatic scale

Palettes built from #81fdad

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.

#81fdad 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
SurfacesBadgesHighlightsEmpty states
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 16.59:1.

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.

#81fdad, answered

What color is #81fdad?

#81fdad is a light electric green, closest to Pale Green (ΔE2000 4.9). It sits at 141° on the hue wheel with 97% saturation and 75% lightness, which reads as cool.

What is the RGB value of #81fdad?

rgb(129, 253, 173) — 129 red, 253 green and 173 blue out of 255, or 50.6% / 99.2% / 67.8% by channel.

What is #81fdad in HSL and HSV?

hsl(141, 97%, 75%) and hsv(141, 49%, 99%). HSL is what CSS takes; HSV is what your design tool's picker shows, which is why the saturation numbers rarely match.

Is #81fdad a light or a dark color?

It is a light color. Relative luminance is 0.7793 and perceived brightness is 84%, so black text on it reaches 16.59:1.

Should I use black or white text on #81fdad?

Black. It scores 16.59:1 against #81fdad, versus 1.27:1 for white — AAA at any size.

Is #81fdad accessible on a white background?

#81fdad on white scores 1.27:1, which fails WCAG AA at every size. Darken it to #028731 to reach 4.5:1, or #026424 for 7:1.

What is the complementary color of #81fdad?

#FD81D1 sits directly opposite on the wheel. Softer options are the split-complements #EB81FD and #FD8193, which give the same contrast with far less vibration.

What colors go well with #81fdad?

For interface work: #F4FAF6 as the surface, #C0EDD0 for borders, #4B9B67 for secondary text, #CC00B7 as an accent and #027E2E for hover and pressed states. For a palette, the analogous pair #93FD81 and #81FDEB stays calm, while #FD81D1 is the loudest partner.

What is #81fdad in CMYK for printing?

cmyk(49%, 0%, 32%, 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 #81fdad warm or cool?

Cool — it scores 71 on a scale where 0 is the warmest orange and 100 the coolest azure. Nudged warmer it becomes #82FD81; nudged cooler, #80FEDB.

Which Tailwind color is closest to #81fdad?

The green family — its 500 step is #22c55e, ΔE2000 14.8 away. That is a visible difference, so define #81fdad as a custom token rather than reaching for the built-in.

How do I use #81fdad in Tailwind CSS?

Inline it as an arbitrary value with bg-[#81fdad] or text-[#81fdad], 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 #81fdad with 50% opacity?

rgba(129, 253, 173, 0.5), or #81fdad80 in eight-digit hex. Over white that composites to #C0FED6; over black, #417F57.

Is #81fdad a web-safe color?

No. The nearest web-safe colour is #99FF99, ΔE2000 5.1 away. The palette only matters for legacy displays and some email clients now.

What does the color #81fdad 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 #81fdad?

The safest is same-hue elevation: linear-gradient(135deg, #BDFED4, #81fdad 45%, #027E2E). For more colour, a short hue run to #63ECFD keeps it rich without turning muddy.

Work with #81fdad in the Color Lab

Every tool opens with this colour already loaded.

Every value on this page is computed from #81fdad at request time — conversions, contrast ratios and ΔE distances are calculated, never looked up.