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green · neutral

#83df27

a balanced, vivid green · neutral · closest name: Yellow Green

Token name suggestion: Atlas Basil

RGB
131, 223, 39
HSL
90°, 74%, 51%
CMYK
41, 0, 83, 13
Luminance
0.5775

#83df27 is a balanced vivid green, 90° on the wheel and 50/100 on the cool side. Put black text on it (12.55:1). As text it scores 1.67:1 on white — use #4B8313 instead. Nearest name is Yellow Green, nearest Tailwind family is lime.

hsl(90 74% 51%)rgb(131 223 39)Base step 600AAA inkNeutral

At a glance

Every number on this page in one read: what #83df27 is made of, how bright it looks, and which way it leans.

Hex
#83df27
Hue
90°
green
Saturation
74%
vivid
Lightness
51%
balanced
Brightness
87%
HSV value
Perceived
73%
weighted brightness
Luminance
0.5775
WCAG relative
Temperature
Neutral
50/100 cool
Color family
Green
Tone
Vivid
Best ink
Black
12.55:1
Closest name
Yellow Green
ΔE2000 5.8
Chroma
90.9
LCH, 0–130ish
OKLCH L
0.815
perceptual lightness
Tailwind
lime
500 · ΔE 4.7
Web-safe
#99CC33
nearest of 216
Where it sits
Hue90° of 360°
Saturation74%
Lightness51%
Saturation × lightness field

Left edge is grey, right edge is full chroma; top is white, bottom is black. The dot is #83df27.

Temperature
Warm ← → Cool50% 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
Red8%
Green91%
Blue0%

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

Every format

HEX#83df27
HEX (8-digit)#83df27ff
RGBrgb(131, 223, 39)
RGBArgba(131, 223, 39, 1)
HSLhsl(90, 74%, 51%)
HSV / HSBhsv(90, 83%, 87%)
HWBhwb(90 15% 13%)
CMYKcmyk(41%, 0%, 83%, 13%)
LABlab(80.6 -54.2 72.9)
LCHlch(80.6 90.9 126.6)
OKLCHoklch(0.815 0.221 133.7)
XYZ (D65)xyz(36.11, 57.75, 11.16)
Decimal8642343
Display P3color(display-p3 0.514 0.875 0.153)
Web-safe#99CC33

Copy-ready code

every platformclick to select
/* CSS */
color: #83df27;
background-color: #83df27;
/* CSS custom property */
--brand: #83df27;
/* Tailwind (arbitrary) */
class="text-[#83df27] bg-[#83df27]"
/* SCSS */
$brand: #83df27;
/* SwiftUI */
Color(red: 0.514, green: 0.875, blue: 0.153)
/* UIKit */
UIColor(red: 0.514, green: 0.875, blue: 0.153, alpha: 1)
/* Android XML */
<color name="brand">#83DF27</color>
/* Android Compose */
Color(0xFF83DF27)
/* Flutter */
Color(0xFF83DF27)
/* Python / OpenCV (BGR) */
(39, 223, 131)
/* Python / PIL (RGB) */
(131, 223, 39)
/* Java AWT */
new Color(131, 223, 39)
/* .NET */
Color.FromArgb(255, 131, 223, 39)
/* OpenGL / Unity (0–1) */
(0.5137f, 0.8745f, 0.1529f, 1f)
/* LaTeX */
\definecolor{brand}{RGB}{131,223,39}
modern cssclick to select
/* mix without leaving CSS */
background: color-mix(in oklab, #83df27 85%, white);
border-color: color-mix(in oklab, #83df27 40%, transparent);
/* theme-aware in one line */
color: light-dark(#406F10, #E0EED3);
/* relative colour syntax */
--hover: hsl(from #83df27 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: #F7FCF3;
  --brand-100: #F0F9E7;
  --brand-200: #DEF3C8;
  --brand-300: #C7F19D;
  --brand-400: #ABE96C;
  --brand-500: #8FE23C;
  --brand-600: #83df27;
  --brand-700: #66B21A;
  --brand-800: #528E15;
  --brand-900: #3D6713;
  --brand-950: #26400C;
  --brand: #83df27;
  --brand-ink: #000000;
  --brand-surface: #F7FAF4;
  --brand-border: #D6EDC0;
  --brand-hover: #71C51D;
  --brand-pressed: #5FA619;
}
@media (prefers-color-scheme: dark) {
  :root {
    --brand-surface: #1C2414;
    --brand-ink: #E0EED3;
  }
}
tailwind.config.jsclick to select
theme: {
  extend: {
    colors: {
      brand: {
        50: '#F7FCF3',
        100: '#F0F9E7',
        200: '#DEF3C8',
        300: '#C7F19D',
        400: '#ABE96C',
        500: '#8FE23C',
        600: '#83df27',
        700: '#66B21A',
        800: '#528E15',
        900: '#3D6713',
        950: '#26400C',
        DEFAULT: '#83df27',
      },
    },
  },
}
scss mapclick to select
$brand: (
  '50': #F7FCF3,
  '100': #F0F9E7,
  '200': #DEF3C8,
  '300': #C7F19D,
  '400': #ABE96C,
  '500': #8FE23C,
  '600': #83df27,
  '700': #66B21A,
  '800': #528E15,
  '900': #3D6713,
  '950': #26400C,
);
$brand-base: #83df27;
$brand-ink: #000000;

@function brand($step) { @return map-get($brand, $step); }
w3c design tokens (json)click to select
{
  "color": {
    "brand": {
      "50": { "$value": "#F7FCF3", "$type": "color" },
      "100": { "$value": "#F0F9E7", "$type": "color" },
      "200": { "$value": "#DEF3C8", "$type": "color" },
      "300": { "$value": "#C7F19D", "$type": "color" },
      "400": { "$value": "#ABE96C", "$type": "color" },
      "500": { "$value": "#8FE23C", "$type": "color" },
      "600": { "$value": "#83df27", "$type": "color" },
      "700": { "$value": "#66B21A", "$type": "color" },
      "800": { "$value": "#528E15", "$type": "color" },
      "900": { "$value": "#3D6713", "$type": "color" },
      "950": { "$value": "#26400C", "$type": "color" }
    },
    "brandInk": { "$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 #83df27 · 12.55:1
Use #000000AAA at every size.
Aa
12px
Aa
16px
Aa
24px
Aa
White text · 1.67:1
AA fail · AA large fail · AAA fail
Aa
Black text · 12.55:1 · recommended
AA pass · AA large pass · AAA pass
Reading the other direction: #83df27 as text scores 1.67:1 on white and 12.55:1 on black.
Best tinted ink on it, if plain black or white feels flat: #406F10 at 3.59:1.

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
#4B8313 · 4.61:1
AA on white−22% L
#4B8313
The quick fox
#375F0E · 7.48:1
AAA on white−30% L
#375F0E
The quick fox
#83df27 · 12.55:1
AA on blackalready passes
#83df27
The quick fox
#83df27 · 12.55:1
AAA on blackalready passes
#83df27

Large text — 24px regular or 18.66px bold and above — only needs 3:1, so #5FA619 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
#83df27 on white: 1.67:1
AA ✗ fail · AA-large · AAA
Aa
#83df27 on black: 12.55:1
AA ✓ pass · AA-large · AAA
Against the neutral ladder

Contrast is symmetric, so each row covers both directions: #83df27 as text on that neutral, and that neutral as text on #83df27.

NeutralRatioBoth directions
White1.67:1AaAa
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 6004.53:1AaAa
Slate 7006.19:1AaAa
Slate 8008.74:1AaAa
Slate 90010.67:1AaAa
Black12.55:1AaAa
Colour vision deficiency
true color
protanopia · #E8CD00
deuteranopia · #DCC53E
tritanopia · #82D6BE

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. #83df27 is pinned to step 600; the rest hold its hue and let saturation ease off at the extremes so the pale end never turns neon.

#F7FCF3
#F0F9E7
#DEF3C8
#C7F19D
#ABE96C
#8FE23C
#83df27
#66B21A
#528E15
#3D6713
#26400C
Base = 600Lightest = 50 · #F7FCF3Darkest = 950 · #26400CText 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 0.055 133.7);
  --brand-100: oklch(0.94 0.088 133.7);
  --brand-200: oklch(0.88 0.133 133.7);
  --brand-300: oklch(0.80 0.172 133.7);
  --brand-400: oklch(0.72 0.203 133.7);
  --brand-500: oklch(0.64 0.221 133.7);
  --brand-600: oklch(0.56 0.221 133.7);
  --brand-700: oklch(0.48 0.208 133.7);
  --brand-800: oklch(0.40 0.186 133.7);
  --brand-900: oklch(0.32 0.155 133.7);
  --brand-950: oklch(0.24 0.122 133.7);
}

Colors that work with #83df27

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#F7FAF4
Tinted page background
Border#D6EDC0
Hairlines and dividers
Muted text#739B4B
Captions on the surface
Accent#5322E4
Second voice, not a rival
Dark variant#406F10
Hover, pressed, headers
Light variant#F2FCE9
Selected rows, tints
Dark surface#1C2414
Dark-mode background
Hover#71C51D
One step down in lightness
Pressed#5FA619
Two steps down
Disabled#BBCAAC
Chroma pulled out
Focus ring#8DED2E
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 #83df27

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 #406F10
Safe as a 1px border on white
No — use #5FA619

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
  • Weight49/100
  • 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#8327DF
Analogous left#DFDF27
Analogous right#27DF27
Split-complement 1#2727DF
Split-complement 2#DF27DF
Triadic 1#2783DF
Triadic 2#DF2783
Tetradic#27DFDF
On the wheel
Base+30°−30°+120°+240°+180°90°

#83df27 sits at 90°. Every dot is a harmony position and links to its own page in the table alongside.

RGB percentages

Red51.4%
Green87.5%
Blue15.3%
R · 0–255
131
0x83
G · 0–255
223
0xdf
B · 0–255
39
0x27

CMYK percentages

Cyan41.3%
Magenta0.0%
Yellow82.5%
Key (black)12.5%

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

Color previews

#83df27 text on a black background

contrast 12.55:1

Card sample

#83df27 text on a white background

contrast 1.67:1

Card sample

#83df27 on grey

1.53:1

#83df27 on its own surface

1.59:1

#83df27 on its dark surface

9.57:1

CSS3 live lab

Text font color

The quick brown fox

color: #83df27;
Background color
Panel with #83df27 background
background-color: #83df27;
Text shadow — hex

Glowing headline

text-shadow: 2px 2px 8px #83df27;
Text shadow — RGB

Soft neon halo

text-shadow: 0 0 14px rgba(131, 223, 39, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(131, 223, 39, 0.45);
Border & gradient
Gradient panel
border: 3px solid #83df27;
background: linear-gradient(135deg, #83df27, #27DF46);
Gradient text

Gradient headline

background: linear-gradient(90deg, #83df27, #27DF74);
-webkit-background-clip: text;
color: transparent;
Focus ring
Focused control
outline: 2px solid #83df27;
outline-offset: 3px;
Underline & caret

Marked up text

text-decoration-color: #83df27;
caret-color: #83df27;
Left rule
Pull quote or callout
border-left: 4px solid #83df27;
Ring + tint
Selected chip
background: #F2FCE9;
box-shadow: inset 0 0 0 2px #83df27;
Conic badge
68%
background: conic-gradient(#83df27 68%, #e2e8f0 0);

Transparency

What each alpha value actually composites to. The top row is #83df27 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(131, 223, 39, 0.5)
rgb(131 223 39 / 50%)
#83df2780
hsl(90 74% 51% / 50%)
color-mix(in srgb, #83df27 50%, transparent)
Alpha8-digit hexFlat on white
10%#83df271a#F3FCE9
20%#83df2733#E6F9D4
40%#83df2766#CDF2A9
60%#83df2799#B5EC7D
80%#83df27cc#9CE552

Gradients from #83df27

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, #A2E75C, #83df27 45%, #406F10);
Duotone
A short hue run reads richer than a flat fill
background: linear-gradient(120deg, #83df27, #1ECA49);
Complement sweep
Loud — keep it behind large type only
background: linear-gradient(90deg, #83df27, #8327DF);
Spotlight
Hero panels and app headers
background: radial-gradient(120% 120% at 20% 0%, #B1EB77 0%, #83df27 45%, #406F10 100%);
Soft wash
Section backgrounds that stay readable
background: linear-gradient(180deg, #F7FAF4, #ffffff);
Mesh
Ambient background, no image weight
background: radial-gradient(60% 60% at 15% 20%, #E6D954 0%, transparent 60%), radial-gradient(55% 55% at 85% 15%, #42E34F 0%, transparent 60%), radial-gradient(70% 70% at 50% 95%, #406F10 0%, transparent 65%), #83df27;

Monochromatic scale

Palettes built from #83df27

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.

#83df27 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 12.55:1.

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.

#83df27, answered

What color is #83df27?

#83df27 is a balanced vivid green, closest to Yellow Green (ΔE2000 5.8). It sits at 90° on the hue wheel with 74% saturation and 51% lightness, which reads as neutral.

What is the RGB value of #83df27?

rgb(131, 223, 39) — 131 red, 223 green and 39 blue out of 255, or 51.4% / 87.5% / 15.3% by channel.

What is #83df27 in HSL and HSV?

hsl(90, 74%, 51%) and hsv(90, 83%, 87%). HSL is what CSS takes; HSV is what your design tool's picker shows, which is why the saturation numbers rarely match.

Is #83df27 a light or a dark color?

It is a light color. Relative luminance is 0.5775 and perceived brightness is 73%, so black text on it reaches 12.55:1.

Should I use black or white text on #83df27?

Black. It scores 12.55:1 against #83df27, versus 1.67:1 for white — AAA at any size.

Is #83df27 accessible on a white background?

#83df27 on white scores 1.67:1, which fails WCAG AA at every size. Darken it to #4B8313 to reach 4.5:1, or #375F0E for 7:1.

What is the complementary color of #83df27?

#8327DF sits directly opposite on the wheel. Softer options are the split-complements #2727DF and #DF27DF, which give the same contrast with far less vibration.

What colors go well with #83df27?

For interface work: #F7FAF4 as the surface, #D6EDC0 for borders, #739B4B for secondary text, #5322E4 as an accent and #406F10 for hover and pressed states. For a palette, the analogous pair #DFDF27 and #27DF27 stays calm, while #8327DF is the loudest partner.

What is #83df27 in CMYK for printing?

cmyk(41%, 0%, 83%, 13%). This is a screen-to-ink approximation — ask your printer for a proof before committing to a run.

Is #83df27 warm or cool?

Neutral — it scores 50 on a scale where 0 is the warmest orange and 100 the coolest azure. Nudged warmer it becomes #C7DF27; nudged cooler, #3EE225.

Which Tailwind color is closest to #83df27?

The lime family — its 500 step is #84cc16, ΔE2000 4.7 away. That is a visible difference, so define #83df27 as a custom token rather than reaching for the built-in.

How do I use #83df27 in Tailwind CSS?

Inline it as an arbitrary value with bg-[#83df27] or text-[#83df27], 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 #83df27 with 50% opacity?

rgba(131, 223, 39, 0.5), or #83df2780 in eight-digit hex. Over white that composites to #C1EF93; over black, #427014.

Is #83df27 a web-safe color?

No. The nearest web-safe colour is #99CC33, ΔE2000 6 away. The palette only matters for legacy displays and some email clients now.

What does the color #83df27 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 #83df27?

The safest is same-hue elevation: linear-gradient(135deg, #A2E75C, #83df27 45%, #406F10). For more colour, a short hue run to #1ECA49 keeps it rich without turning muddy.

Work with #83df27 in the Color Lab

Every tool opens with this colour already loaded.

Every value on this page is computed from #83df27 at request time — conversions, contrast ratios and ΔE distances are calculated, never looked up.