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green · neutral

#b0f366

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

Token name suggestion: Drift Basil

RGB
176, 243, 102
HSL
89°, 86%, 68%
CMYK
28, 0, 58, 5
Luminance
0.7429

#b0f366 is a light electric green, 89° on the wheel and 49/100 on the cool side. Put black text on it (15.86:1). As text it scores 1.32:1 on white — use #49830A instead. Nearest name is Green Yellow, nearest Tailwind family is lime.

hsl(89 86% 68%)rgb(176 243 102)Base step 400AAA inkNeutral

At a glance

Every number on this page in one read: what #b0f366 is made of, how bright it looks, and which way it leans.

Hex
#b0f366
Hue
89°
green
Saturation
86%
electric
Lightness
68%
light
Brightness
95%
HSV value
Perceived
83%
weighted brightness
Luminance
0.7429
WCAG relative
Temperature
Neutral
49/100 cool
Color family
Green
Tone
Electric
Best ink
Black
15.86:1
Closest name
Green Yellow
ΔE2000 5.4
Chroma
73.9
LCH, 0–130ish
OKLCH L
0.891
perceptual lightness
Tailwind
lime
500 · ΔE 10
Web-safe
#99FF66
nearest of 216
Where it sits
Hue89° of 360°
Saturation86%
Lightness68%
Saturation × lightness field

Left edge is grey, right edge is full chroma; top is white, bottom is black. The dot is #b0f366.

Temperature
Warm ← → Cool49% 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
Red12%
Green86%
Blue1%

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

Every format

HEX#b0f366
HEX (8-digit)#b0f366ff
RGBrgb(176, 243, 102)
RGBArgba(176, 243, 102, 1)
HSLhsl(89, 86%, 68%)
HSV / HSBhsv(89, 58%, 95%)
HWBhwb(89 40% 5%)
CMYKcmyk(28%, 0%, 58%, 5%)
LABlab(89.1 -43.0 60.1)
LCHlch(89.1 73.9 125.6)
OKLCHoklch(0.891 0.185 130.7)
XYZ (D65)xyz(52.35, 74.29, 24.15)
Decimal11596646
Display P3color(display-p3 0.690 0.953 0.400)
Web-safe#99FF66

Copy-ready code

every platformclick to select
/* CSS */
color: #b0f366;
background-color: #b0f366;
/* CSS custom property */
--brand: #b0f366;
/* Tailwind (arbitrary) */
class="text-[#b0f366] bg-[#b0f366]"
/* SCSS */
$brand: #b0f366;
/* SwiftUI */
Color(red: 0.690, green: 0.953, blue: 0.400)
/* UIKit */
UIColor(red: 0.690, green: 0.953, blue: 0.400, alpha: 1)
/* Android XML */
<color name="brand">#B0F366</color>
/* Android Compose */
Color(0xFFB0F366)
/* Flutter */
Color(0xFFB0F366)
/* Python / OpenCV (BGR) */
(102, 243, 176)
/* Python / PIL (RGB) */
(176, 243, 102)
/* Java AWT */
new Color(176, 243, 102)
/* .NET */
Color.FromArgb(255, 176, 243, 102)
/* OpenGL / Unity (0–1) */
(0.6902f, 0.9529f, 0.4000f, 1f)
/* LaTeX */
\definecolor{brand}{RGB}{176,243,102}
modern cssclick to select
/* mix without leaving CSS */
background: color-mix(in oklab, #b0f366 85%, white);
border-color: color-mix(in oklab, #b0f366 40%, transparent);
/* theme-aware in one line */
color: light-dark(#427609, #E1EED3);
/* relative colour syntax */
--hover: hsl(from #b0f366 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: #F8FDF2;
  --brand-100: #F0FAE5;
  --brand-200: #DFF7C5;
  --brand-300: #C9F797;
  --brand-400: #b0f366;
  --brand-500: #94EF2F;
  --brand-600: #80E312;
  --brand-700: #6ABD0F;
  --brand-800: #55970C;
  --brand-900: #406D0D;
  --brand-950: #284408;
  --brand: #b0f366;
  --brand-ink: #000000;
  --brand-surface: #F8FAF4;
  --brand-border: #D7EDC0;
  --brand-hover: #9FF045;
  --brand-pressed: #8EEE24;
}
@media (prefers-color-scheme: dark) {
  :root {
    --brand-surface: #1C2414;
    --brand-ink: #E1EED3;
  }
}
tailwind.config.jsclick to select
theme: {
  extend: {
    colors: {
      brand: {
        50: '#F8FDF2',
        100: '#F0FAE5',
        200: '#DFF7C5',
        300: '#C9F797',
        400: '#b0f366',
        500: '#94EF2F',
        600: '#80E312',
        700: '#6ABD0F',
        800: '#55970C',
        900: '#406D0D',
        950: '#284408',
        DEFAULT: '#b0f366',
      },
    },
  },
}
scss mapclick to select
$brand: (
  '50': #F8FDF2,
  '100': #F0FAE5,
  '200': #DFF7C5,
  '300': #C9F797,
  '400': #b0f366,
  '500': #94EF2F,
  '600': #80E312,
  '700': #6ABD0F,
  '800': #55970C,
  '900': #406D0D,
  '950': #284408,
);
$brand-base: #b0f366;
$brand-ink: #000000;

@function brand($step) { @return map-get($brand, $step); }
w3c design tokens (json)click to select
{
  "color": {
    "brand": {
      "50": { "$value": "#F8FDF2", "$type": "color" },
      "100": { "$value": "#F0FAE5", "$type": "color" },
      "200": { "$value": "#DFF7C5", "$type": "color" },
      "300": { "$value": "#C9F797", "$type": "color" },
      "400": { "$value": "#b0f366", "$type": "color" },
      "500": { "$value": "#94EF2F", "$type": "color" },
      "600": { "$value": "#80E312", "$type": "color" },
      "700": { "$value": "#6ABD0F", "$type": "color" },
      "800": { "$value": "#55970C", "$type": "color" },
      "900": { "$value": "#406D0D", "$type": "color" },
      "950": { "$value": "#284408", "$type": "color" }
    },
    "brandInk": { "$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 #b0f366 · 15.86:1
Use #000000AAA at every size.
Aa
12px
Aa
16px
Aa
24px
Aa
White text · 1.32:1
AA fail · AA large fail · AAA fail
Aa
Black text · 15.86:1 · recommended
AA pass · AA large pass · AAA pass
Reading the other direction: #b0f366 as text scores 1.32:1 on white and 15.86:1 on black.
Best tinted ink on it, if plain black or white feels flat: #427609 at 4.14:1.

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
#49830A · 4.63:1
AA on white−40% L
#49830A
The quick fox
#376108 · 7.30:1
AAA on white−47% L
#376108
The quick fox
#b0f366 · 15.86:1
AA on blackalready passes
#b0f366
The quick fox
#b0f366 · 15.86:1
AAA on blackalready passes
#b0f366

Large text — 24px regular or 18.66px bold and above — only needs 3:1, so #5CA40D 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
#b0f366 on white: 1.32:1
AA ✗ fail · AA-large · AAA
Aa
#b0f366 on black: 15.86:1
AA ✓ pass · AA-large · AAA
Against the neutral ladder

Contrast is symmetric, so each row covers both directions: #b0f366 as text on that neutral, and that neutral as text on #b0f366.

NeutralRatioBoth directions
White1.32:1AaAa
Slate 501.27:1AaAa
Slate 1001.21:1AaAa
Slate 2001.07:1AaAa
Slate 3001.12:1AaAa
Slate 4001.94:1AaAa
Slate 5003.59:1AaAa
Slate 6005.72:1AaAa
Slate 7007.82:1AaAa
Slate 80011.05:1AaAa
Slate 90013.48:1AaAa
Black15.86:1AaAa
Colour vision deficiency
true color
protanopia · #FDE357
deuteranopia · #F4DE70
tritanopia · #B3EAD5

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. #b0f366 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.

#F8FDF2
#F0FAE5
#DFF7C5
#C9F797
#b0f366
#94EF2F
#80E312
#6ABD0F
#55970C
#406D0D
#284408
Base = 400Lightest = 50 · #F8FDF2Darkest = 950 · #284408Text 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 0.046 130.7);
  --brand-100: oklch(0.94 0.074 130.7);
  --brand-200: oklch(0.88 0.111 130.7);
  --brand-300: oklch(0.80 0.144 130.7);
  --brand-400: oklch(0.72 0.170 130.7);
  --brand-500: oklch(0.64 0.185 130.7);
  --brand-600: oklch(0.56 0.185 130.7);
  --brand-700: oklch(0.48 0.174 130.7);
  --brand-800: oklch(0.40 0.155 130.7);
  --brand-900: oklch(0.32 0.129 130.7);
  --brand-950: oklch(0.24 0.102 130.7);
}

Colors that work with #b0f366

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#D7EDC0
Hairlines and dividers
Muted text#759B4B
Captions on the surface
Accent#8462F6
Second voice, not a rival
Dark variant#427609
Hover, pressed, headers
Light variant#F3FDE7
Selected rows, tints
Dark surface#1C2414
Dark-mode background
Hover#9FF045
One step down in lightness
Pressed#8EEE24
Two steps down
Disabled#E5EADF
Chroma pulled out
Focus ring#BAFC71
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 #b0f366

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 #427609
Safe as a 1px border on white
No — use #5CA40D

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
  • Weight32/100
  • 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#A966F3
Analogous left#F3EF66
Analogous right#69F366
Split-complement 1#6669F3
Split-complement 2#EF66F3
Triadic 1#66B0F3
Triadic 2#F366B0
Tetradic#66F3EF
On the wheel
Base+30°−30°+120°+240°+180°89°

#b0f366 sits at 89°. Every dot is a harmony position and links to its own page in the table alongside.

RGB percentages

Red69.0%
Green95.3%
Blue40.0%
R · 0–255
176
0xb0
G · 0–255
243
0xf3
B · 0–255
102
0x66

CMYK percentages

Cyan27.6%
Magenta0.0%
Yellow58.0%
Key (black)4.7%

Total ink coverage is 90%. Most commercial presses cap around 300% — above that, sheets stop drying properly.

Color previews

#b0f366 text on a black background

contrast 15.86:1

Card sample

#b0f366 text on a white background

contrast 1.32:1

Card sample

#b0f366 on grey

1.21:1

#b0f366 on its own surface

1.26:1

#b0f366 on its dark surface

12.09:1

CSS3 live lab

Text font color

The quick brown fox

color: #b0f366;
Background color
Panel with #b0f366 background
background-color: #b0f366;
Text shadow — hex

Glowing headline

text-shadow: 2px 2px 8px #b0f366;
Text shadow — RGB

Soft neon halo

text-shadow: 0 0 14px rgba(176, 243, 102, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(176, 243, 102, 0.45);
Border & gradient
Gradient panel
border: 3px solid #b0f366;
background: linear-gradient(135deg, #b0f366, #66F37A);
Gradient text

Gradient headline

background: linear-gradient(90deg, #b0f366, #66F39D);
-webkit-background-clip: text;
color: transparent;
Focus ring
Focused control
outline: 2px solid #b0f366;
outline-offset: 3px;
Underline & caret

Marked up text

text-decoration-color: #b0f366;
caret-color: #b0f366;
Left rule
Pull quote or callout
border-left: 4px solid #b0f366;
Ring + tint
Selected chip
background: #F3FDE7;
box-shadow: inset 0 0 0 2px #b0f366;
Conic badge
68%
background: conic-gradient(#b0f366 68%, #e2e8f0 0);

Transparency

What each alpha value actually composites to. The top row is #b0f366 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(176, 243, 102, 0.5)
rgb(176 243 102 / 50%)
#b0f36680
hsl(89 86% 68% / 50%)
color-mix(in srgb, #b0f366 50%, transparent)
Alpha8-digit hexFlat on white
10%#b0f3661a#F7FEF0
20%#b0f36633#EFFDE0
40%#b0f36666#DFFAC2
60%#b0f36699#D0F8A3
80%#b0f366cc#C0F585

Gradients from #b0f366

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, #CDF79F, #b0f366 45%, #427609);
Duotone
A short hue run reads richer than a flat fill
background: linear-gradient(120deg, #b0f366, #49F16F);
Complement sweep
Loud — keep it behind large type only
background: linear-gradient(90deg, #b0f366, #A966F3);
Spotlight
Hero panels and app headers
background: radial-gradient(120% 120% at 20% 0%, #DCFABB 0%, #b0f366 45%, #427609 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%, #F7EC95 0%, transparent 60%), radial-gradient(55% 55% at 85% 15%, #82F589 0%, transparent 60%), radial-gradient(70% 70% at 50% 95%, #427609 0%, transparent 65%), #b0f366;

Monochromatic scale

Palettes built from #b0f366

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.

#b0f366 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 15.86:1.

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.

#b0f366, answered

What color is #b0f366?

#b0f366 is a light electric green, closest to Green Yellow (ΔE2000 5.4). It sits at 89° on the hue wheel with 86% saturation and 68% lightness, which reads as neutral.

What is the RGB value of #b0f366?

rgb(176, 243, 102) — 176 red, 243 green and 102 blue out of 255, or 69% / 95.3% / 40% by channel.

What is #b0f366 in HSL and HSV?

hsl(89, 86%, 68%) and hsv(89, 58%, 95%). HSL is what CSS takes; HSV is what your design tool's picker shows, which is why the saturation numbers rarely match.

Is #b0f366 a light or a dark color?

It is a light color. Relative luminance is 0.7429 and perceived brightness is 83%, so black text on it reaches 15.86:1.

Should I use black or white text on #b0f366?

Black. It scores 15.86:1 against #b0f366, versus 1.32:1 for white — AAA at any size.

Is #b0f366 accessible on a white background?

#b0f366 on white scores 1.32:1, which fails WCAG AA at every size. Darken it to #49830A to reach 4.5:1, or #376108 for 7:1.

What is the complementary color of #b0f366?

#A966F3 sits directly opposite on the wheel. Softer options are the split-complements #6669F3 and #EF66F3, which give the same contrast with far less vibration.

What colors go well with #b0f366?

For interface work: #F8FAF4 as the surface, #D7EDC0 for borders, #759B4B for secondary text, #8462F6 as an accent and #427609 for hover and pressed states. For a palette, the analogous pair #F3EF66 and #69F366 stays calm, while #A966F3 is the loudest partner.

What is #b0f366 in CMYK for printing?

cmyk(28%, 0%, 58%, 5%). 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 #b0f366 warm or cool?

Neutral — it scores 49 on a scale where 0 is the warmest orange and 100 the coolest azure. Nudged warmer it becomes #E4F366; nudged cooler, #7BF564.

Which Tailwind color is closest to #b0f366?

The lime family — its 500 step is #84cc16, ΔE2000 10 away. That is a visible difference, so define #b0f366 as a custom token rather than reaching for the built-in.

How do I use #b0f366 in Tailwind CSS?

Inline it as an arbitrary value with bg-[#b0f366] or text-[#b0f366], 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 #b0f366 with 50% opacity?

rgba(176, 243, 102, 0.5), or #b0f36680 in eight-digit hex. Over white that composites to #D8F9B3; over black, #587A33.

Is #b0f366 a web-safe color?

No. The nearest web-safe colour is #99FF66, ΔE2000 4.3 away. The palette only matters for legacy displays and some email clients now.

What does the color #b0f366 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 #b0f366?

The safest is same-hue elevation: linear-gradient(135deg, #CDF79F, #b0f366 45%, #427609). For more colour, a short hue run to #49F16F keeps it rich without turning muddy.

Work with #b0f366 in the Color Lab

Every tool opens with this colour already loaded.

Every value on this page is computed from #b0f366 at request time — conversions, contrast ratios and ΔE distances are calculated, never looked up.