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green · neutral

#b1df73

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

Token name suggestion: Meadow Basil

RGB
177, 223, 115
HSL
86°, 63%, 66%
CMYK
21, 0, 48, 13
Luminance
0.6336

#b1df73 is a light vivid green, 86° on the wheel and 46/100 on the cool side. Put black text on it (13.67:1). As text it scores 1.54:1 on white — use #57821E instead. Nearest name is Yellow Green, nearest Tailwind family is lime.

hsl(86 63% 66%)rgb(177 223 115)Base step 400AAA inkNeutral

At a glance

Every number on this page in one read: what #b1df73 is made of, how bright it looks, and which way it leans.

Hex
#b1df73
Hue
86°
green
Saturation
63%
vivid
Lightness
66%
light
Brightness
87%
HSV value
Perceived
78%
weighted brightness
Luminance
0.6336
WCAG relative
Temperature
Neutral
46/100 cool
Color family
Green
Tone
Vivid
Best ink
Black
13.67:1
Closest name
Yellow Green
ΔE2000 7.2
Chroma
57.7
LCH, 0–130ish
OKLCH L
0.848
perceptual lightness
Tailwind
lime
500 · ΔE 9
Web-safe
#99CC66
nearest of 216
Where it sits
Hue86° of 360°
Saturation63%
Lightness66%
Saturation × lightness field

Left edge is grey, right edge is full chroma; top is white, bottom is black. The dot is #b1df73.

Temperature
Warm ← → Cool46% 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
Red15%
Green83%
Blue2%

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

Every format

HEX#b1df73
HEX (8-digit)#b1df73ff
RGBrgb(177, 223, 115)
RGBArgba(177, 223, 115, 1)
HSLhsl(86, 63%, 66%)
HSV / HSBhsv(86, 48%, 87%)
HWBhwb(86 45% 13%)
CMYKcmyk(21%, 0%, 48%, 13%)
LABlab(83.6 -32.3 47.8)
LCHlch(83.6 57.7 124.1)
OKLCHoklch(0.848 0.146 128.2)
XYZ (D65)xyz(47.61, 63.36, 25.94)
Decimal11657075
Display P3color(display-p3 0.694 0.875 0.451)
Web-safe#99CC66

Copy-ready code

every platformclick to select
/* CSS */
color: #b1df73;
background-color: #b1df73;
/* CSS custom property */
--brand: #b1df73;
/* Tailwind (arbitrary) */
class="text-[#b1df73] bg-[#b1df73]"
/* SCSS */
$brand: #b1df73;
/* SwiftUI */
Color(red: 0.694, green: 0.875, blue: 0.451)
/* UIKit */
UIColor(red: 0.694, green: 0.875, blue: 0.451, alpha: 1)
/* Android XML */
<color name="brand">#B1DF73</color>
/* Android Compose */
Color(0xFFB1DF73)
/* Flutter */
Color(0xFFB1DF73)
/* Python / OpenCV (BGR) */
(115, 223, 177)
/* Python / PIL (RGB) */
(177, 223, 115)
/* Java AWT */
new Color(177, 223, 115)
/* .NET */
Color.FromArgb(255, 177, 223, 115)
/* OpenGL / Unity (0–1) */
(0.6941f, 0.8745f, 0.4510f, 1f)
/* LaTeX */
\definecolor{brand}{RGB}{177,223,115}
modern cssclick to select
/* mix without leaving CSS */
background: color-mix(in oklab, #b1df73 85%, white);
border-color: color-mix(in oklab, #b1df73 40%, transparent);
/* theme-aware in one line */
color: light-dark(#466818, #E2EED3);
/* relative colour syntax */
--hover: hsl(from #b1df73 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: #F8FBF4;
  --brand-100: #F1F7E8;
  --brand-200: #E1F0CC;
  --brand-300: #CCEAA4;
  --brand-400: #b1df73;
  --brand-500: #99D548;
  --brand-600: #86C72E;
  --brand-700: #6FA626;
  --brand-800: #59851E;
  --brand-900: #42611A;
  --brand-950: #293C10;
  --brand: #b1df73;
  --brand-ink: #000000;
  --brand-surface: #F8FAF4;
  --brand-border: #D9EDC0;
  --brand-hover: #A1D856;
  --brand-pressed: #91D239;
}
@media (prefers-color-scheme: dark) {
  :root {
    --brand-surface: #1D2414;
    --brand-ink: #E2EED3;
  }
}
tailwind.config.jsclick to select
theme: {
  extend: {
    colors: {
      brand: {
        50: '#F8FBF4',
        100: '#F1F7E8',
        200: '#E1F0CC',
        300: '#CCEAA4',
        400: '#b1df73',
        500: '#99D548',
        600: '#86C72E',
        700: '#6FA626',
        800: '#59851E',
        900: '#42611A',
        950: '#293C10',
        DEFAULT: '#b1df73',
      },
    },
  },
}
scss mapclick to select
$brand: (
  '50': #F8FBF4,
  '100': #F1F7E8,
  '200': #E1F0CC,
  '300': #CCEAA4,
  '400': #b1df73,
  '500': #99D548,
  '600': #86C72E,
  '700': #6FA626,
  '800': #59851E,
  '900': #42611A,
  '950': #293C10,
);
$brand-base: #b1df73;
$brand-ink: #000000;

@function brand($step) { @return map-get($brand, $step); }
w3c design tokens (json)click to select
{
  "color": {
    "brand": {
      "50": { "$value": "#F8FBF4", "$type": "color" },
      "100": { "$value": "#F1F7E8", "$type": "color" },
      "200": { "$value": "#E1F0CC", "$type": "color" },
      "300": { "$value": "#CCEAA4", "$type": "color" },
      "400": { "$value": "#b1df73", "$type": "color" },
      "500": { "$value": "#99D548", "$type": "color" },
      "600": { "$value": "#86C72E", "$type": "color" },
      "700": { "$value": "#6FA626", "$type": "color" },
      "800": { "$value": "#59851E", "$type": "color" },
      "900": { "$value": "#42611A", "$type": "color" },
      "950": { "$value": "#293C10", "$type": "color" }
    },
    "brandInk": { "$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 #b1df73 · 13.67:1
Use #000000AAA at every size.
Aa
12px
Aa
16px
Aa
24px
Aa
White text · 1.54:1
AA fail · AA large fail · AAA fail
Aa
Black text · 13.67:1 · recommended
AA pass · AA large pass · AAA pass
Reading the other direction: #b1df73 as text scores 1.54:1 on white and 13.67:1 on black.
Best tinted ink on it, if plain black or white feels flat: #466818 at 4.20:1.

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
#57821E · 4.55:1
AA on white−35% L
#57821E
The quick fox
#416116 · 7.13:1
AAA on white−43% L
#416116
The quick fox
#b1df73 · 13.67:1
AA on blackalready passes
#b1df73
The quick fox
#b1df73 · 13.67:1
AAA on blackalready passes
#b1df73

Large text — 24px regular or 18.66px bold and above — only needs 3:1, so #6DA325 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
#b1df73 on white: 1.54:1
AA ✗ fail · AA-large · AAA
Aa
#b1df73 on black: 13.67:1
AA ✓ pass · AA-large · AAA
Against the neutral ladder

Contrast is symmetric, so each row covers both directions: #b1df73 as text on that neutral, and that neutral as text on #b1df73.

NeutralRatioBoth directions
White1.54:1AaAa
Slate 501.47:1AaAa
Slate 1001.40:1AaAa
Slate 2001.25:1AaAa
Slate 3001.03:1AaAa
Slate 4001.67:1AaAa
Slate 5003.10:1AaAa
Slate 6004.93:1AaAa
Slate 7006.74:1AaAa
Slate 8009.52:1AaAa
Slate 90011.62:1AaAa
Black13.67:1AaAa
Colour vision deficiency
true color
protanopia · #E8D26A
deuteranopia · #E2D079
tritanopia · #B5D7C6

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. #b1df73 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.

#F8FBF4
#F1F7E8
#E1F0CC
#CCEAA4
#b1df73
#99D548
#86C72E
#6FA626
#59851E
#42611A
#293C10
Base = 400Lightest = 50 · #F8FBF4Darkest = 950 · #293C10Text 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 0.036 128.2);
  --brand-100: oklch(0.94 0.058 128.2);
  --brand-200: oklch(0.88 0.087 128.2);
  --brand-300: oklch(0.80 0.114 128.2);
  --brand-400: oklch(0.72 0.134 128.2);
  --brand-500: oklch(0.64 0.146 128.2);
  --brand-600: oklch(0.56 0.146 128.2);
  --brand-700: oklch(0.48 0.137 128.2);
  --brand-800: oklch(0.40 0.122 128.2);
  --brand-900: oklch(0.32 0.102 128.2);
  --brand-950: oklch(0.24 0.080 128.2);
}

Colors that work with #b1df73

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#F8FAF4
Tinted page background
Border#D9EDC0
Hairlines and dividers
Muted text#799B4B
Captions on the surface
Accent#8470E2
Second voice, not a rival
Dark variant#466818
Hover, pressed, headers
Light variant#F3FAEA
Selected rows, tints
Dark surface#1D2414
Dark-mode background
Hover#A1D856
One step down in lightness
Pressed#91D239
Two steps down
Disabled#E2E8DB
Chroma pulled out
Focus ring#BBEA7C
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 #b1df73

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 #466818
Safe as a 1px border on white
No — use #6DA325

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 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
  • FormalityMedium
  • EnergyMedium-high
  • Weight34/100
  • 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#A173DF
Analogous left#DFD773
Analogous right#7BDF73
Split-complement 1#737BDF
Split-complement 2#D773DF
Triadic 1#73B1DF
Triadic 2#DF73B1
Tetradic#73DFD7
On the wheel
Base+30°−30°+120°+240°+180°86°

#b1df73 sits at 86°. Every dot is a harmony position and links to its own page in the table alongside.

RGB percentages

Red69.4%
Green87.5%
Blue45.1%
R · 0–255
177
0xb1
G · 0–255
223
0xdf
B · 0–255
115
0x73

CMYK percentages

Cyan20.6%
Magenta0.0%
Yellow48.4%
Key (black)12.5%

Total ink coverage is 82%. Most commercial presses cap around 300% — above that, sheets stop drying properly.

Color previews

#b1df73 text on a black background

contrast 13.67:1

Card sample

#b1df73 text on a white background

contrast 1.54:1

Card sample

#b1df73 on grey

1.40:1

#b1df73 on its own surface

1.46:1

#b1df73 on its dark surface

10.40:1

CSS3 live lab

Text font color

The quick brown fox

color: #b1df73;
Background color
Panel with #b1df73 background
background-color: #b1df73;
Text shadow — hex

Glowing headline

text-shadow: 2px 2px 8px #b1df73;
Text shadow — RGB

Soft neon halo

text-shadow: 0 0 14px rgba(177, 223, 115, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(177, 223, 115, 0.45);
Border & gradient
Gradient panel
border: 3px solid #b1df73;
background: linear-gradient(135deg, #b1df73, #73DF7D);
Gradient text

Gradient headline

background: linear-gradient(90deg, #b1df73, #73DF98);
-webkit-background-clip: text;
color: transparent;
Focus ring
Focused control
outline: 2px solid #b1df73;
outline-offset: 3px;
Underline & caret

Marked up text

text-decoration-color: #b1df73;
caret-color: #b1df73;
Left rule
Pull quote or callout
border-left: 4px solid #b1df73;
Ring + tint
Selected chip
background: #F3FAEA;
box-shadow: inset 0 0 0 2px #b1df73;
Conic badge
68%
background: conic-gradient(#b1df73 68%, #e2e8f0 0);

Transparency

What each alpha value actually composites to. The top row is #b1df73 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(177, 223, 115, 0.5)
rgb(177 223 115 / 50%)
#b1df7380
hsl(86 63% 66% / 50%)
color-mix(in srgb, #b1df73 50%, transparent)
Alpha8-digit hexFlat on white
10%#b1df731a#F7FCF1
20%#b1df7333#EFF9E3
40%#b1df7366#E0F2C7
60%#b1df7399#D0ECAB
80%#b1df73cc#C1E58F

Gradients from #b1df73

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, #CDEAA5, #b1df73 45%, #466818);
Duotone
A short hue run reads richer than a flat fill
background: linear-gradient(120deg, #b1df73, #5AD971);
Complement sweep
Loud — keep it behind large type only
background: linear-gradient(90deg, #b1df73, #A173DF);
Spotlight
Hero panels and app headers
background: radial-gradient(120% 120% at 20% 0%, #DBF0BE 0%, #b1df73 45%, #466818 100%);
Soft wash
Section backgrounds that stay readable
background: linear-gradient(180deg, #F8FAF4, #ffffff);
Mesh
Ambient background, no image weight
background: radial-gradient(60% 60% at 15% 20%, #E9DD9D 0%, transparent 60%), radial-gradient(55% 55% at 85% 15%, #8CE58D 0%, transparent 60%), radial-gradient(70% 70% at 50% 95%, #466818 0%, transparent 65%), #b1df73;

Monochromatic scale

Palettes built from #b1df73

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.

#b1df73 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

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 13.67:1.

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.

#b1df73, answered

What color is #b1df73?

#b1df73 is a light vivid green, closest to Yellow Green (ΔE2000 7.2). It sits at 86° on the hue wheel with 63% saturation and 66% lightness, which reads as neutral.

What is the RGB value of #b1df73?

rgb(177, 223, 115) — 177 red, 223 green and 115 blue out of 255, or 69.4% / 87.5% / 45.1% by channel.

What is #b1df73 in HSL and HSV?

hsl(86, 63%, 66%) and hsv(86, 48%, 87%). HSL is what CSS takes; HSV is what your design tool's picker shows, which is why the saturation numbers rarely match.

Is #b1df73 a light or a dark color?

It is a light color. Relative luminance is 0.6336 and perceived brightness is 78%, so black text on it reaches 13.67:1.

Should I use black or white text on #b1df73?

Black. It scores 13.67:1 against #b1df73, versus 1.54:1 for white — AAA at any size.

Is #b1df73 accessible on a white background?

#b1df73 on white scores 1.54:1, which fails WCAG AA at every size. Darken it to #57821E to reach 4.5:1, or #416116 for 7:1.

What is the complementary color of #b1df73?

#A173DF sits directly opposite on the wheel. Softer options are the split-complements #737BDF and #D773DF, which give the same contrast with far less vibration.

What colors go well with #b1df73?

For interface work: #F8FAF4 as the surface, #D9EDC0 for borders, #799B4B for secondary text, #8470E2 as an accent and #466818 for hover and pressed states. For a palette, the analogous pair #DFD773 and #7BDF73 stays calm, while #A173DF is the loudest partner.

What is #b1df73 in CMYK for printing?

cmyk(21%, 0%, 48%, 13%). This is a screen-to-ink approximation — ask your printer for a proof before committing to a run.

Is #b1df73 warm or cool?

Neutral — it scores 46 on a scale where 0 is the warmest orange and 100 the coolest azure. Nudged warmer it becomes #D9DF73; nudged cooler, #88E171.

Which Tailwind color is closest to #b1df73?

The lime family — its 500 step is #84cc16, ΔE2000 9 away. That is a visible difference, so define #b1df73 as a custom token rather than reaching for the built-in.

How do I use #b1df73 in Tailwind CSS?

Inline it as an arbitrary value with bg-[#b1df73] or text-[#b1df73], 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 #b1df73 with 50% opacity?

rgba(177, 223, 115, 0.5), or #b1df7380 in eight-digit hex. Over white that composites to #D8EFB9; over black, #59703A.

Is #b1df73 a web-safe color?

No. The nearest web-safe colour is #99CC66, ΔE2000 5 away. The palette only matters for legacy displays and some email clients now.

What does the color #b1df73 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 #b1df73?

The safest is same-hue elevation: linear-gradient(135deg, #CDEAA5, #b1df73 45%, #466818). For more colour, a short hue run to #5AD971 keeps it rich without turning muddy.

Work with #b1df73 in the Color Lab

Every tool opens with this colour already loaded.

Every value on this page is computed from #b1df73 at request time — conversions, contrast ratios and ΔE distances are calculated, never looked up.