Skip to content
green · warm

#b9d52f

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

Token name suggestion: Atlas Moss

RGB
185, 213, 47
HSL
70°, 66%, 51%
CMYK
13, 0, 78, 17
Luminance
0.5811

#b9d52f is a balanced vivid green, 70° on the wheel and 33/100 on the cool side. Put black text on it (12.62:1). As text it scores 1.66:1 on white — use #6B7B19 instead. Nearest name is Yellow Green, nearest Tailwind family is lime.

hsl(70 66% 51%)rgb(185 213 47)Base step 600AAA inkWarm

At a glance

Every number on this page in one read: what #b9d52f is made of, how bright it looks, and which way it leans.

Hex
#b9d52f
Hue
70°
green
Saturation
66%
vivid
Lightness
51%
balanced
Brightness
84%
HSV value
Perceived
76%
weighted brightness
Luminance
0.5811
WCAG relative
Temperature
Warm
33/100 cool
Color family
Green
Tone
Vivid
Best ink
Black
12.62:1
Closest name
Yellow Green
ΔE2000 5.5
Chroma
78.0
LCH, 0–130ish
OKLCH L
0.824
perceptual lightness
Tailwind
lime
500 · ΔE 8.1
Web-safe
#CCCC33
nearest of 216
Where it sits
Hue70° of 360°
Saturation66%
Lightness51%
Saturation × lightness field

Left edge is grey, right edge is full chroma; top is white, bottom is black. The dot is #b9d52f.

Temperature
Warm ← → Cool33% 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
Red18%
Green82%
Blue0%

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

Every format

HEX#b9d52f
HEX (8-digit)#b9d52fff
RGBrgb(185, 213, 47)
RGBArgba(185, 213, 47, 1)
HSLhsl(70, 66%, 51%)
HSV / HSBhsv(70, 78%, 84%)
HWBhwb(70 18% 16%)
CMYKcmyk(13%, 0%, 78%, 17%)
LABlab(80.8 -29.5 72.2)
LCHlch(80.8 78.0 112.2)
OKLCHoklch(0.824 0.181 119.3)
XYZ (D65)xyz(44.32, 58.11, 11.57)
Decimal12178735
Display P3color(display-p3 0.725 0.835 0.184)
Web-safe#CCCC33

Copy-ready code

every platformclick to select
/* CSS */
color: #b9d52f;
background-color: #b9d52f;
/* CSS custom property */
--brand: #b9d52f;
/* Tailwind (arbitrary) */
class="text-[#b9d52f] bg-[#b9d52f]"
/* SCSS */
$brand: #b9d52f;
/* SwiftUI */
Color(red: 0.725, green: 0.835, blue: 0.184)
/* UIKit */
UIColor(red: 0.725, green: 0.835, blue: 0.184, alpha: 1)
/* Android XML */
<color name="brand">#B9D52F</color>
/* Android Compose */
Color(0xFFB9D52F)
/* Flutter */
Color(0xFFB9D52F)
/* Python / OpenCV (BGR) */
(47, 213, 185)
/* Python / PIL (RGB) */
(185, 213, 47)
/* Java AWT */
new Color(185, 213, 47)
/* .NET */
Color.FromArgb(255, 185, 213, 47)
/* OpenGL / Unity (0–1) */
(0.7255f, 0.8353f, 0.1843f, 1f)
/* LaTeX */
\definecolor{brand}{RGB}{185,213,47}
modern cssclick to select
/* mix without leaving CSS */
background: color-mix(in oklab, #b9d52f 85%, white);
border-color: color-mix(in oklab, #b9d52f 40%, transparent);
/* theme-aware in one line */
color: light-dark(#5C6A15, #EAEED3);
/* relative colour syntax */
--hover: hsl(from #b9d52f 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: #FAFBF3;
  --brand-100: #F5F8E8;
  --brand-200: #EBF1CA;
  --brand-300: #E0ECA2;
  --brand-400: #D0E373;
  --brand-500: #C0D944;
  --brand-600: #b9d52f;
  --brand-700: #93AA22;
  --brand-800: #76881B;
  --brand-900: #566318;
  --brand-950: #363E0F;
  --brand: #b9d52f;
  --brand-ink: #000000;
  --brand-surface: #F9FAF4;
  --brand-border: #E5EDC0;
  --brand-hover: #A2BB26;
  --brand-pressed: #889D20;
}
@media (prefers-color-scheme: dark) {
  :root {
    --brand-surface: #222414;
    --brand-ink: #EAEED3;
  }
}
tailwind.config.jsclick to select
theme: {
  extend: {
    colors: {
      brand: {
        50: '#FAFBF3',
        100: '#F5F8E8',
        200: '#EBF1CA',
        300: '#E0ECA2',
        400: '#D0E373',
        500: '#C0D944',
        600: '#b9d52f',
        700: '#93AA22',
        800: '#76881B',
        900: '#566318',
        950: '#363E0F',
        DEFAULT: '#b9d52f',
      },
    },
  },
}
scss mapclick to select
$brand: (
  '50': #FAFBF3,
  '100': #F5F8E8,
  '200': #EBF1CA,
  '300': #E0ECA2,
  '400': #D0E373,
  '500': #C0D944,
  '600': #b9d52f,
  '700': #93AA22,
  '800': #76881B,
  '900': #566318,
  '950': #363E0F,
);
$brand-base: #b9d52f;
$brand-ink: #000000;

@function brand($step) { @return map-get($brand, $step); }
w3c design tokens (json)click to select
{
  "color": {
    "brand": {
      "50": { "$value": "#FAFBF3", "$type": "color" },
      "100": { "$value": "#F5F8E8", "$type": "color" },
      "200": { "$value": "#EBF1CA", "$type": "color" },
      "300": { "$value": "#E0ECA2", "$type": "color" },
      "400": { "$value": "#D0E373", "$type": "color" },
      "500": { "$value": "#C0D944", "$type": "color" },
      "600": { "$value": "#b9d52f", "$type": "color" },
      "700": { "$value": "#93AA22", "$type": "color" },
      "800": { "$value": "#76881B", "$type": "color" },
      "900": { "$value": "#566318", "$type": "color" },
      "950": { "$value": "#363E0F", "$type": "color" }
    },
    "brandInk": { "$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 #b9d52f · 12.62:1
Use #000000AAA at every size.
Aa
12px
Aa
16px
Aa
24px
Aa
White text · 1.66:1
AA fail · AA large fail · AAA fail
Aa
Black text · 12.62:1 · recommended
AA pass · AA large pass · AAA pass
Reading the other direction: #b9d52f as text scores 1.66:1 on white and 12.62:1 on black.
Best tinted ink on it, if plain black or white feels flat: #5C6A15 at 3.58:1.

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
#6B7B19 · 4.70:1
AA on white−22% L
#6B7B19
The quick fox
#515D13 · 7.18:1
AAA on white−29% L
#515D13
The quick fox
#b9d52f · 12.62:1
AA on blackalready passes
#b9d52f
The quick fox
#b9d52f · 12.62:1
AAA on blackalready passes
#b9d52f

Large text — 24px regular or 18.66px bold and above — only needs 3:1, so #889D20 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
#b9d52f on white: 1.66:1
AA ✗ fail · AA-large · AAA
Aa
#b9d52f on black: 12.62:1
AA ✓ pass · AA-large · AAA
Against the neutral ladder

Contrast is symmetric, so each row covers both directions: #b9d52f as text on that neutral, and that neutral as text on #b9d52f.

NeutralRatioBoth directions
White1.66:1AaAa
Slate 501.59:1AaAa
Slate 1001.52:1AaAa
Slate 2001.35:1AaAa
Slate 3001.12:1AaAa
Slate 4001.54:1AaAa
Slate 5002.86:1AaAa
Slate 6004.55:1AaAa
Slate 7006.22:1AaAa
Slate 8008.79:1AaAa
Slate 90010.73:1AaAa
Black12.62:1AaAa
Colour vision deficiency
true color
protanopia · #E3C900
deuteranopia · #E0C93F
tritanopia · #C4C9B7

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. #b9d52f 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.

#FAFBF3
#F5F8E8
#EBF1CA
#E0ECA2
#D0E373
#C0D944
#b9d52f
#93AA22
#76881B
#566318
#363E0F
Base = 600Lightest = 50 · #FAFBF3Darkest = 950 · #363E0FText 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 0.045 119.3);
  --brand-100: oklch(0.94 0.072 119.3);
  --brand-200: oklch(0.88 0.109 119.3);
  --brand-300: oklch(0.80 0.141 119.3);
  --brand-400: oklch(0.72 0.166 119.3);
  --brand-500: oklch(0.64 0.181 119.3);
  --brand-600: oklch(0.56 0.181 119.3);
  --brand-700: oklch(0.48 0.170 119.3);
  --brand-800: oklch(0.40 0.152 119.3);
  --brand-900: oklch(0.32 0.127 119.3);
  --brand-950: oklch(0.24 0.099 119.3);
}

Colors that work with #b9d52f

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#E5EDC0
Hairlines and dividers
Muted text#8D9B4B
Captions on the surface
Accent#2A38DA
Second voice, not a rival
Dark variant#5C6A15
Hover, pressed, headers
Light variant#F8FBEA
Selected rows, tints
Dark surface#222414
Dark-mode background
Hover#A2BB26
One step down in lightness
Pressed#889D20
Two steps down
Disabled#C4C9AB
Chroma pulled out
Focus ring#C6E435
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 #b9d52f

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 #5C6A15
Safe as a 1px border on white
No — use #889D20

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
  • 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#4B2FD5
Analogous left#D59E2F
Analogous right#66D52F
Split-complement 1#2F66D5
Split-complement 2#9E2FD5
Triadic 1#2FB9D5
Triadic 2#D52FB9
Tetradic#2FD59E
On the wheel
Base+30°−30°+120°+240°+180°70°

#b9d52f sits at 70°. Every dot is a harmony position and links to its own page in the table alongside.

RGB percentages

Red72.5%
Green83.5%
Blue18.4%
R · 0–255
185
0xb9
G · 0–255
213
0xd5
B · 0–255
47
0x2f

CMYK percentages

Cyan13.1%
Magenta0.0%
Yellow77.9%
Key (black)16.5%

Total ink coverage is 108%. Most commercial presses cap around 300% — above that, sheets stop drying properly.

Color previews

#b9d52f text on a black background

contrast 12.62:1

Card sample

#b9d52f text on a white background

contrast 1.66:1

Card sample

#b9d52f on grey

1.52:1

#b9d52f on its own surface

1.59:1

#b9d52f on its dark surface

9.49:1

CSS3 live lab

Text font color

The quick brown fox

color: #b9d52f;
Background color
Panel with #b9d52f background
background-color: #b9d52f;
Text shadow — hex

Glowing headline

text-shadow: 2px 2px 8px #b9d52f;
Text shadow — RGB

Soft neon halo

text-shadow: 0 0 14px rgba(185, 213, 47, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(185, 213, 47, 0.45);
Border & gradient
Gradient panel
border: 3px solid #b9d52f;
background: linear-gradient(135deg, #b9d52f, #4AD52F);
Gradient text

Gradient headline

background: linear-gradient(90deg, #b9d52f, #2FD53D);
-webkit-background-clip: text;
color: transparent;
Focus ring
Focused control
outline: 2px solid #b9d52f;
outline-offset: 3px;
Underline & caret

Marked up text

text-decoration-color: #b9d52f;
caret-color: #b9d52f;
Left rule
Pull quote or callout
border-left: 4px solid #b9d52f;
Ring + tint
Selected chip
background: #F8FBEA;
box-shadow: inset 0 0 0 2px #b9d52f;
Conic badge
68%
background: conic-gradient(#b9d52f 68%, #e2e8f0 0);

Transparency

What each alpha value actually composites to. The top row is #b9d52f 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(185, 213, 47, 0.5)
rgb(185 213 47 / 50%)
#b9d52f80
hsl(70 66% 51% / 50%)
color-mix(in srgb, #b9d52f 50%, transparent)
Alpha8-digit hexFlat on white
10%#b9d52f1a#F8FBEA
20%#b9d52f33#F1F7D5
40%#b9d52f66#E3EEAC
60%#b9d52f99#D5E682
80%#b9d52fcc#C7DD59

Gradients from #b9d52f

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, #CADF62, #b9d52f 45%, #5C6A15);
Duotone
A short hue run reads richer than a flat fill
background: linear-gradient(120deg, #b9d52f, #33BF27);
Complement sweep
Loud — keep it behind large type only
background: linear-gradient(90deg, #b9d52f, #4B2FD5);
Spotlight
Hero panels and app headers
background: radial-gradient(120% 120% at 20% 0%, #D3E47B 0%, #b9d52f 45%, #5C6A15 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%, #DEA75A 0%, transparent 60%), radial-gradient(55% 55% at 85% 15%, #6DDA49 0%, transparent 60%), radial-gradient(70% 70% at 50% 95%, #5C6A15 0%, transparent 65%), #b9d52f;

Monochromatic scale

Palettes built from #b9d52f

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.

#b9d52f 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 12.62:1.

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.

#b9d52f, answered

What color is #b9d52f?

#b9d52f is a balanced vivid green, closest to Yellow Green (ΔE2000 5.5). It sits at 70° on the hue wheel with 66% saturation and 51% lightness, which reads as warm.

What is the RGB value of #b9d52f?

rgb(185, 213, 47) — 185 red, 213 green and 47 blue out of 255, or 72.5% / 83.5% / 18.4% by channel.

What is #b9d52f in HSL and HSV?

hsl(70, 66%, 51%) and hsv(70, 78%, 84%). HSL is what CSS takes; HSV is what your design tool's picker shows, which is why the saturation numbers rarely match.

Is #b9d52f a light or a dark color?

It is a light color. Relative luminance is 0.5811 and perceived brightness is 76%, so black text on it reaches 12.62:1.

Should I use black or white text on #b9d52f?

Black. It scores 12.62:1 against #b9d52f, versus 1.66:1 for white — AAA at any size.

Is #b9d52f accessible on a white background?

#b9d52f on white scores 1.66:1, which fails WCAG AA at every size. Darken it to #6B7B19 to reach 4.5:1, or #515D13 for 7:1.

What is the complementary color of #b9d52f?

#4B2FD5 sits directly opposite on the wheel. Softer options are the split-complements #2F66D5 and #9E2FD5, which give the same contrast with far less vibration.

What colors go well with #b9d52f?

For interface work: #F9FAF4 as the surface, #E5EDC0 for borders, #8D9B4B for secondary text, #2A38DA as an accent and #5C6A15 for hover and pressed states. For a palette, the analogous pair #D59E2F and #66D52F stays calm, while #4B2FD5 is the loudest partner.

What is #b9d52f in CMYK for printing?

cmyk(13%, 0%, 78%, 17%). This is a screen-to-ink approximation — ask your printer for a proof before committing to a run.

Is #b9d52f warm or cool?

Warm — it scores 33 on a scale where 0 is the warmest orange and 100 the coolest azure. Nudged warmer it becomes #D5B42F; nudged cooler, #7CD82D.

Which Tailwind color is closest to #b9d52f?

The lime family — its 500 step is #84cc16, ΔE2000 8.1 away. That is a visible difference, so define #b9d52f as a custom token rather than reaching for the built-in.

How do I use #b9d52f in Tailwind CSS?

Inline it as an arbitrary value with bg-[#b9d52f] or text-[#b9d52f], 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 #b9d52f with 50% opacity?

rgba(185, 213, 47, 0.5), or #b9d52f80 in eight-digit hex. Over white that composites to #DCEA97; over black, #5D6B18.

Is #b9d52f a web-safe color?

No. The nearest web-safe colour is #CCCC33, ΔE2000 5.9 away. The palette only matters for legacy displays and some email clients now.

What does the color #b9d52f 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 #b9d52f?

The safest is same-hue elevation: linear-gradient(135deg, #CADF62, #b9d52f 45%, #5C6A15). For more colour, a short hue run to #33BF27 keeps it rich without turning muddy.

Work with #b9d52f in the Color Lab

Every tool opens with this colour already loaded.

Every value on this page is computed from #b9d52f at request time — conversions, contrast ratios and ΔE distances are calculated, never looked up.