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green · warm

#b2d366

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

Token name suggestion: Signal Basil

RGB
178, 211, 102
HSL
78°, 55%, 61%
CMYK
16, 0, 52, 17
Luminance
0.5701

#b2d366 is a balanced vivid green, 78° on the wheel and 40/100 on the cool side. Put black text on it (12.40:1). As text it scores 1.69:1 on white — use #658025 instead. Nearest name is Yellow Green, nearest Tailwind family is lime.

hsl(78 55% 61%)rgb(178 211 102)Base step 500AAA inkWarm

At a glance

Every number on this page in one read: what #b2d366 is made of, how bright it looks, and which way it leans.

Hex
#b2d366
Hue
78°
green
Saturation
55%
vivid
Lightness
61%
balanced
Brightness
83%
HSV value
Perceived
75%
weighted brightness
Luminance
0.5701
WCAG relative
Temperature
Warm
40/100 cool
Color family
Green
Tone
Vivid
Best ink
Black
12.40:1
Closest name
Yellow Green
ΔE2000 5.6
Chroma
57.0
LCH, 0–130ish
OKLCH L
0.820
perceptual lightness
Tailwind
lime
500 · ΔE 8.1
Web-safe
#99CC66
nearest of 216
Where it sits
Hue78° of 360°
Saturation55%
Lightness61%
Saturation × lightness field

Left edge is grey, right edge is full chroma; top is white, bottom is black. The dot is #b2d366.

Temperature
Warm ← → Cool40% cool

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

Luminance by channel
Red17%
Green82%
Blue2%

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

Every format

HEX#b2d366
HEX (8-digit)#b2d366ff
RGBrgb(178, 211, 102)
RGBArgba(178, 211, 102, 1)
HSLhsl(78, 55%, 61%)
HSV / HSBhsv(78, 52%, 83%)
HWBhwb(78 40% 17%)
CMYKcmyk(16%, 0%, 52%, 17%)
LABlab(80.2 -27.6 49.8)
LCHlch(80.2 57.0 119.0)
OKLCHoklch(0.820 0.141 123.5)
XYZ (D65)xyz(44.05, 57.01, 21.25)
Decimal11719526
Display P3color(display-p3 0.698 0.827 0.400)
Web-safe#99CC66

Copy-ready code

every platformclick to select
/* CSS */
color: #b2d366;
background-color: #b2d366;
/* CSS custom property */
--brand: #b2d366;
/* Tailwind (arbitrary) */
class="text-[#b2d366] bg-[#b2d366]"
/* SCSS */
$brand: #b2d366;
/* SwiftUI */
Color(red: 0.698, green: 0.827, blue: 0.400)
/* UIKit */
UIColor(red: 0.698, green: 0.827, blue: 0.400, alpha: 1)
/* Android XML */
<color name="brand">#B2D366</color>
/* Android Compose */
Color(0xFFB2D366)
/* Flutter */
Color(0xFFB2D366)
/* Python / OpenCV (BGR) */
(102, 211, 178)
/* Python / PIL (RGB) */
(178, 211, 102)
/* Java AWT */
new Color(178, 211, 102)
/* .NET */
Color.FromArgb(255, 178, 211, 102)
/* OpenGL / Unity (0–1) */
(0.6980f, 0.8275f, 0.4000f, 1f)
/* LaTeX */
\definecolor{brand}{RGB}{178,211,102}
modern cssclick to select
/* mix without leaving CSS */
background: color-mix(in oklab, #b2d366 85%, white);
border-color: color-mix(in oklab, #b2d366 40%, transparent);
/* theme-aware in one line */
color: light-dark(#4E631C, #E6EED3);
/* relative colour syntax */
--hover: hsl(from #b2d366 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: #F9FBF4;
  --brand-100: #F2F6E9;
  --brand-200: #E4EECE;
  --brand-300: #D3E6A8;
  --brand-400: #BDD97C;
  --brand-500: #b2d366;
  --brand-600: #95BE37;
  --brand-700: #7C9E2E;
  --brand-800: #637F24;
  --brand-900: #495C1E;
  --brand-950: #2E3A13;
  --brand: #b2d366;
  --brand-ink: #000000;
  --brand-surface: #F9FAF4;
  --brand-border: #DFEDC0;
  --brand-hover: #A4CB4A;
  --brand-pressed: #93BC36;
}
@media (prefers-color-scheme: dark) {
  :root {
    --brand-surface: #1F2414;
    --brand-ink: #E6EED3;
  }
}
tailwind.config.jsclick to select
theme: {
  extend: {
    colors: {
      brand: {
        50: '#F9FBF4',
        100: '#F2F6E9',
        200: '#E4EECE',
        300: '#D3E6A8',
        400: '#BDD97C',
        500: '#b2d366',
        600: '#95BE37',
        700: '#7C9E2E',
        800: '#637F24',
        900: '#495C1E',
        950: '#2E3A13',
        DEFAULT: '#b2d366',
      },
    },
  },
}
scss mapclick to select
$brand: (
  '50': #F9FBF4,
  '100': #F2F6E9,
  '200': #E4EECE,
  '300': #D3E6A8,
  '400': #BDD97C,
  '500': #b2d366,
  '600': #95BE37,
  '700': #7C9E2E,
  '800': #637F24,
  '900': #495C1E,
  '950': #2E3A13,
);
$brand-base: #b2d366;
$brand-ink: #000000;

@function brand($step) { @return map-get($brand, $step); }
w3c design tokens (json)click to select
{
  "color": {
    "brand": {
      "50": { "$value": "#F9FBF4", "$type": "color" },
      "100": { "$value": "#F2F6E9", "$type": "color" },
      "200": { "$value": "#E4EECE", "$type": "color" },
      "300": { "$value": "#D3E6A8", "$type": "color" },
      "400": { "$value": "#BDD97C", "$type": "color" },
      "500": { "$value": "#b2d366", "$type": "color" },
      "600": { "$value": "#95BE37", "$type": "color" },
      "700": { "$value": "#7C9E2E", "$type": "color" },
      "800": { "$value": "#637F24", "$type": "color" },
      "900": { "$value": "#495C1E", "$type": "color" },
      "950": { "$value": "#2E3A13", "$type": "color" }
    },
    "brandInk": { "$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 #b2d366 · 12.40:1
Use #000000AAA at every size.
Aa
12px
Aa
16px
Aa
24px
Aa
White text · 1.69:1
AA fail · AA large fail · AAA fail
Aa
Black text · 12.40:1 · recommended
AA pass · AA large pass · AAA pass
Reading the other direction: #b2d366 as text scores 1.69:1 on white and 12.40:1 on black.
Best tinted ink on it, if plain black or white feels flat: #4E631C at 3.97:1.

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
#658025 · 4.50:1
AA on white−29% L
#658025
The quick fox
#495D1B · 7.33:1
AAA on white−38% L
#495D1B
The quick fox
#b2d366 · 12.40:1
AA on blackalready passes
#b2d366
The quick fox
#b2d366 · 12.40:1
AAA on blackalready passes
#b2d366

Large text — 24px regular or 18.66px bold and above — only needs 3:1, so #7DA02E 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
#b2d366 on white: 1.69:1
AA ✗ fail · AA-large · AAA
Aa
#b2d366 on black: 12.40:1
AA ✓ pass · AA-large · AAA
Against the neutral ladder

Contrast is symmetric, so each row covers both directions: #b2d366 as text on that neutral, and that neutral as text on #b2d366.

NeutralRatioBoth directions
White1.69:1AaAa
Slate 501.62:1AaAa
Slate 1001.55:1AaAa
Slate 2001.37:1AaAa
Slate 3001.14:1AaAa
Slate 4001.51:1AaAa
Slate 5002.81:1AaAa
Slate 6004.48:1AaAa
Slate 7006.12:1AaAa
Slate 8008.64:1AaAa
Slate 90010.54:1AaAa
Black12.40:1AaAa
Colour vision deficiency
true color
protanopia · #DDC85C
deuteranopia · #D9C76D
tritanopia · #B9CABA

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. #b2d366 is pinned to step 500; the rest hold its hue and let saturation ease off at the extremes so the pale end never turns neon.

#F9FBF4
#F2F6E9
#E4EECE
#D3E6A8
#BDD97C
#b2d366
#95BE37
#7C9E2E
#637F24
#495C1E
#2E3A13
Base = 500Lightest = 50 · #F9FBF4Darkest = 950 · #2E3A13Text 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 0.035 123.5);
  --brand-100: oklch(0.94 0.057 123.5);
  --brand-200: oklch(0.88 0.085 123.5);
  --brand-300: oklch(0.80 0.110 123.5);
  --brand-400: oklch(0.72 0.130 123.5);
  --brand-500: oklch(0.64 0.141 123.5);
  --brand-600: oklch(0.56 0.141 123.5);
  --brand-700: oklch(0.48 0.133 123.5);
  --brand-800: oklch(0.40 0.119 123.5);
  --brand-900: oklch(0.32 0.099 123.5);
  --brand-950: oklch(0.24 0.078 123.5);
}

Colors that work with #b2d366

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#F9FAF4
Tinted page background
Border#DFEDC0
Hairlines and dividers
Muted text#839B4B
Captions on the surface
Accent#6862D7
Second voice, not a rival
Dark variant#4E631C
Hover, pressed, headers
Light variant#F5F9EB
Selected rows, tints
Dark surface#1F2414
Dark-mode background
Hover#A4CB4A
One step down in lightness
Pressed#93BC36
Two steps down
Disabled#D8DECB
Chroma pulled out
Focus ring#BDE06D
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 #b2d366

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 #4E631C
Safe as a 1px border on white
No — use #7DA02E

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
  • Weight39/100
  • TemperatureWarm
  • ApproachabilityHigh

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#8766D3
Analogous left#D3BE66
Analogous right#7CD366
Split-complement 1#667CD3
Split-complement 2#BE66D3
Triadic 1#66B2D3
Triadic 2#D366B2
Tetradic#66D3BE
On the wheel
Base+30°−30°+120°+240°+180°78°

#b2d366 sits at 78°. Every dot is a harmony position and links to its own page in the table alongside.

RGB percentages

Red69.8%
Green82.7%
Blue40.0%
R · 0–255
178
0xb2
G · 0–255
211
0xd3
B · 0–255
102
0x66

CMYK percentages

Cyan15.6%
Magenta0.0%
Yellow51.7%
Key (black)17.3%

Total ink coverage is 85%. Most commercial presses cap around 300% — above that, sheets stop drying properly.

Color previews

#b2d366 text on a black background

contrast 12.40:1

Card sample

#b2d366 text on a white background

contrast 1.69:1

Card sample

#b2d366 on grey

1.55:1

#b2d366 on its own surface

1.61:1

#b2d366 on its dark surface

9.39:1

CSS3 live lab

Text font color

The quick brown fox

color: #b2d366;
Background color
Panel with #b2d366 background
background-color: #b2d366;
Text shadow — hex

Glowing headline

text-shadow: 2px 2px 8px #b2d366;
Text shadow — RGB

Soft neon halo

text-shadow: 0 0 14px rgba(178, 211, 102, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(178, 211, 102, 0.45);
Border & gradient
Gradient panel
border: 3px solid #b2d366;
background: linear-gradient(135deg, #b2d366, #69D366);
Gradient text

Gradient headline

background: linear-gradient(90deg, #b2d366, #66D37E);
-webkit-background-clip: text;
color: transparent;
Focus ring
Focused control
outline: 2px solid #b2d366;
outline-offset: 3px;
Underline & caret

Marked up text

text-decoration-color: #b2d366;
caret-color: #b2d366;
Left rule
Pull quote or callout
border-left: 4px solid #b2d366;
Ring + tint
Selected chip
background: #F5F9EB;
box-shadow: inset 0 0 0 2px #b2d366;
Conic badge
68%
background: conic-gradient(#b2d366 68%, #e2e8f0 0);

Transparency

What each alpha value actually composites to. The top row is #b2d366 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(178, 211, 102, 0.5)
rgb(178 211 102 / 50%)
#b2d36680
hsl(78 55% 61% / 50%)
color-mix(in srgb, #b2d366 50%, transparent)
Alpha8-digit hexFlat on white
10%#b2d3661a#F7FBF0
20%#b2d36633#F0F6E0
40%#b2d36666#E0EDC2
60%#b2d36699#D1E5A3
80%#b2d366cc#C1DC85

Gradients from #b2d366

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, #CAE196, #b2d366 45%, #4E631C);
Duotone
A short hue run reads richer than a flat fill
background: linear-gradient(120deg, #b2d366, #4ECC55);
Complement sweep
Loud — keep it behind large type only
background: linear-gradient(90deg, #b2d366, #8766D3);
Spotlight
Hero panels and app headers
background: radial-gradient(120% 120% at 20% 0%, #D6E8AD 0%, #b2d366 45%, #4E631C 100%);
Soft wash
Section backgrounds that stay readable
background: linear-gradient(180deg, #F9FAF4, #ffffff);
Mesh
Ambient background, no image weight
background: radial-gradient(60% 60% at 15% 20%, #DEC88E 0%, transparent 60%), radial-gradient(55% 55% at 85% 15%, #88DA7E 0%, transparent 60%), radial-gradient(70% 70% at 50% 95%, #4E631C 0%, transparent 65%), #b2d366;

Monochromatic scale

Palettes built from #b2d366

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.

#b2d366 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 12.40:1.

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.

#b2d366, answered

What color is #b2d366?

#b2d366 is a balanced vivid green, closest to Yellow Green (ΔE2000 5.6). It sits at 78° on the hue wheel with 55% saturation and 61% lightness, which reads as warm.

What is the RGB value of #b2d366?

rgb(178, 211, 102) — 178 red, 211 green and 102 blue out of 255, or 69.8% / 82.7% / 40% by channel.

What is #b2d366 in HSL and HSV?

hsl(78, 55%, 61%) and hsv(78, 52%, 83%). HSL is what CSS takes; HSV is what your design tool's picker shows, which is why the saturation numbers rarely match.

Is #b2d366 a light or a dark color?

It is a light color. Relative luminance is 0.5701 and perceived brightness is 75%, so black text on it reaches 12.40:1.

Should I use black or white text on #b2d366?

Black. It scores 12.40:1 against #b2d366, versus 1.69:1 for white — AAA at any size.

Is #b2d366 accessible on a white background?

#b2d366 on white scores 1.69:1, which fails WCAG AA at every size. Darken it to #658025 to reach 4.5:1, or #495D1B for 7:1.

What is the complementary color of #b2d366?

#8766D3 sits directly opposite on the wheel. Softer options are the split-complements #667CD3 and #BE66D3, which give the same contrast with far less vibration.

What colors go well with #b2d366?

For interface work: #F9FAF4 as the surface, #DFEDC0 for borders, #839B4B for secondary text, #6862D7 as an accent and #4E631C for hover and pressed states. For a palette, the analogous pair #D3BE66 and #7CD366 stays calm, while #8766D3 is the loudest partner.

What is #b2d366 in CMYK for printing?

cmyk(16%, 0%, 52%, 17%). This is a screen-to-ink approximation — ask your printer for a proof before committing to a run.

Is #b2d366 warm or cool?

Warm — it scores 40 on a scale where 0 is the warmest orange and 100 the coolest azure. Nudged warmer it becomes #D3CC66; nudged cooler, #89D564.

Which Tailwind color is closest to #b2d366?

The lime family — its 500 step is #84cc16, ΔE2000 8.1 away. That is a visible difference, so define #b2d366 as a custom token rather than reaching for the built-in.

How do I use #b2d366 in Tailwind CSS?

Inline it as an arbitrary value with bg-[#b2d366] or text-[#b2d366], 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 #b2d366 with 50% opacity?

rgba(178, 211, 102, 0.5), or #b2d36680 in eight-digit hex. Over white that composites to #D9E9B3; over black, #596A33.

Is #b2d366 a web-safe color?

No. The nearest web-safe colour is #99CC66, ΔE2000 4.6 away. The palette only matters for legacy displays and some email clients now.

What does the color #b2d366 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 #b2d366?

The safest is same-hue elevation: linear-gradient(135deg, #CAE196, #b2d366 45%, #4E631C). For more colour, a short hue run to #4ECC55 keeps it rich without turning muddy.

Work with #b2d366 in the Color Lab

Every tool opens with this colour already loaded.

Every value on this page is computed from #b2d366 at request time — conversions, contrast ratios and ΔE distances are calculated, never looked up.