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green · warm

#b9da5a

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

Token name suggestion: Signal Jade

RGB
185, 218, 90
HSL
76°, 63%, 60%
CMYK
15, 0, 59, 15
Luminance
0.6120

#b9da5a is a balanced vivid green, 76° on the wheel and 38/100 on the cool side. Put black text on it (13.24:1). As text it scores 1.59:1 on white — use #657F1C instead. Nearest name is Yellow Green, nearest Tailwind family is lime.

hsl(76 63% 60%)rgb(185 218 90)Base step 500AAA inkWarm

At a glance

Every number on this page in one read: what #b9da5a is made of, how bright it looks, and which way it leans.

Hex
#b9da5a
Hue
76°
green
Saturation
63%
vivid
Lightness
60%
balanced
Brightness
85%
HSV value
Perceived
77%
weighted brightness
Luminance
0.6120
WCAG relative
Temperature
Warm
38/100 cool
Color family
Green
Tone
Vivid
Best ink
Black
13.24:1
Closest name
Yellow Green
ΔE2000 5.3
Chroma
65.0
LCH, 0–130ish
OKLCH L
0.839
perceptual lightness
Tailwind
lime
500 · ΔE 8
Web-safe
#CCCC66
nearest of 216
Where it sits
Hue76° of 360°
Saturation63%
Lightness60%
Saturation × lightness field

Left edge is grey, right edge is full chroma; top is white, bottom is black. The dot is #b9da5a.

Temperature
Warm ← → Cool38% 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%
Blue1%

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

Every format

HEX#b9da5a
HEX (8-digit)#b9da5aff
RGBrgb(185, 218, 90)
RGBArgba(185, 218, 90, 1)
HSLhsl(76, 63%, 60%)
HSV / HSBhsv(75, 59%, 85%)
HWBhwb(76 35% 15%)
CMYKcmyk(15%, 0%, 59%, 15%)
LABlab(82.5 -29.3 58.0)
LCHlch(82.5 65.0 116.8)
OKLCHoklch(0.839 0.159 122.0)
XYZ (D65)xyz(46.92, 61.20, 19.01)
Decimal12180058
Display P3color(display-p3 0.725 0.855 0.353)
Web-safe#CCCC66

Copy-ready code

every platformclick to select
/* CSS */
color: #b9da5a;
background-color: #b9da5a;
/* CSS custom property */
--brand: #b9da5a;
/* Tailwind (arbitrary) */
class="text-[#b9da5a] bg-[#b9da5a]"
/* SCSS */
$brand: #b9da5a;
/* SwiftUI */
Color(red: 0.725, green: 0.855, blue: 0.353)
/* UIKit */
UIColor(red: 0.725, green: 0.855, blue: 0.353, alpha: 1)
/* Android XML */
<color name="brand">#B9DA5A</color>
/* Android Compose */
Color(0xFFB9DA5A)
/* Flutter */
Color(0xFFB9DA5A)
/* Python / OpenCV (BGR) */
(90, 218, 185)
/* Python / PIL (RGB) */
(185, 218, 90)
/* Java AWT */
new Color(185, 218, 90)
/* .NET */
Color.FromArgb(255, 185, 218, 90)
/* OpenGL / Unity (0–1) */
(0.7255f, 0.8549f, 0.3529f, 1f)
/* LaTeX */
\definecolor{brand}{RGB}{185,218,90}
modern cssclick to select
/* mix without leaving CSS */
background: color-mix(in oklab, #b9da5a 85%, white);
border-color: color-mix(in oklab, #b9da5a 40%, transparent);
/* theme-aware in one line */
color: light-dark(#536817, #E7EED3);
/* relative colour syntax */
--hover: hsl(from #b9da5a 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: #F3F7E8;
  --brand-200: #E7F0CB;
  --brand-300: #D8EAA3;
  --brand-400: #C5E075;
  --brand-500: #b9da5a;
  --brand-600: #A0C82D;
  --brand-700: #85A725;
  --brand-800: #6B851E;
  --brand-900: #4E611A;
  --brand-950: #313D10;
  --brand: #b9da5a;
  --brand-ink: #000000;
  --brand-surface: #F9FAF4;
  --brand-border: #E1EDC0;
  --brand-hover: #ADD43D;
  --brand-pressed: #9BC12B;
}
@media (prefers-color-scheme: dark) {
  :root {
    --brand-surface: #202414;
    --brand-ink: #E7EED3;
  }
}
tailwind.config.jsclick to select
theme: {
  extend: {
    colors: {
      brand: {
        50: '#F9FBF4',
        100: '#F3F7E8',
        200: '#E7F0CB',
        300: '#D8EAA3',
        400: '#C5E075',
        500: '#b9da5a',
        600: '#A0C82D',
        700: '#85A725',
        800: '#6B851E',
        900: '#4E611A',
        950: '#313D10',
        DEFAULT: '#b9da5a',
      },
    },
  },
}
scss mapclick to select
$brand: (
  '50': #F9FBF4,
  '100': #F3F7E8,
  '200': #E7F0CB,
  '300': #D8EAA3,
  '400': #C5E075,
  '500': #b9da5a,
  '600': #A0C82D,
  '700': #85A725,
  '800': #6B851E,
  '900': #4E611A,
  '950': #313D10,
);
$brand-base: #b9da5a;
$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": "#F3F7E8", "$type": "color" },
      "200": { "$value": "#E7F0CB", "$type": "color" },
      "300": { "$value": "#D8EAA3", "$type": "color" },
      "400": { "$value": "#C5E075", "$type": "color" },
      "500": { "$value": "#b9da5a", "$type": "color" },
      "600": { "$value": "#A0C82D", "$type": "color" },
      "700": { "$value": "#85A725", "$type": "color" },
      "800": { "$value": "#6B851E", "$type": "color" },
      "900": { "$value": "#4E611A", "$type": "color" },
      "950": { "$value": "#313D10", "$type": "color" }
    },
    "brandInk": { "$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 #b9da5a · 13.24:1
Use #000000AAA at every size.
Aa
12px
Aa
16px
Aa
24px
Aa
White text · 1.59:1
AA fail · AA large fail · AAA fail
Aa
Black text · 13.24:1 · recommended
AA pass · AA large pass · AAA pass
Reading the other direction: #b9da5a as text scores 1.59:1 on white and 13.24:1 on black.
Best tinted ink on it, if plain black or white feels flat: #536817 at 3.94:1.

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
#657F1C · 4.56:1
AA on white−30% L
#657F1C
The quick fox
#4B5D15 · 7.30:1
AAA on white−38% L
#4B5D15
The quick fox
#b9da5a · 13.24:1
AA on blackalready passes
#b9da5a
The quick fox
#b9da5a · 13.24:1
AAA on blackalready passes
#b9da5a

Large text — 24px regular or 18.66px bold and above — only needs 3:1, so #80A024 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
#b9da5a on white: 1.59:1
AA ✗ fail · AA-large · AAA
Aa
#b9da5a on black: 13.24:1
AA ✓ pass · AA-large · AAA
Against the neutral ladder

Contrast is symmetric, so each row covers both directions: #b9da5a as text on that neutral, and that neutral as text on #b9da5a.

NeutralRatioBoth directions
White1.59:1AaAa
Slate 501.52:1AaAa
Slate 1001.45:1AaAa
Slate 2001.29:1AaAa
Slate 3001.07:1AaAa
Slate 4001.62:1AaAa
Slate 5003.00:1AaAa
Slate 6004.78:1AaAa
Slate 7006.53:1AaAa
Slate 8009.22:1AaAa
Slate 90011.25:1AaAa
Black13.24:1AaAa
Colour vision deficiency
true color
protanopia · #E6CE4C
deuteranopia · #E2CD62
tritanopia · #C2D0BF

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. #b9da5a 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
#F3F7E8
#E7F0CB
#D8EAA3
#C5E075
#b9da5a
#A0C82D
#85A725
#6B851E
#4E611A
#313D10
Base = 500Lightest = 50 · #F9FBF4Darkest = 950 · #313D10Text 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 0.040 122.0);
  --brand-100: oklch(0.94 0.063 122.0);
  --brand-200: oklch(0.88 0.095 122.0);
  --brand-300: oklch(0.80 0.124 122.0);
  --brand-400: oklch(0.72 0.146 122.0);
  --brand-500: oklch(0.64 0.159 122.0);
  --brand-600: oklch(0.56 0.159 122.0);
  --brand-700: oklch(0.48 0.149 122.0);
  --brand-800: oklch(0.40 0.133 122.0);
  --brand-900: oklch(0.32 0.111 122.0);
  --brand-950: oklch(0.24 0.087 122.0);
}

Colors that work with #b9da5a

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#E1EDC0
Hairlines and dividers
Muted text#869B4B
Captions on the surface
Accent#5756DE
Second voice, not a rival
Dark variant#536817
Hover, pressed, headers
Light variant#F6FAEA
Selected rows, tints
Dark surface#202414
Dark-mode background
Hover#ADD43D
One step down in lightness
Pressed#9BC12B
Two steps down
Disabled#D7DCC8
Chroma pulled out
Focus ring#C4E762
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 #b9da5a

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 #536817
Safe as a 1px border on white
No — use #80A024

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
  • Weight40/100
  • 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#7B5ADA
Analogous left#DABB5A
Analogous right#79DA5A
Split-complement 1#5A79DA
Split-complement 2#BB5ADA
Triadic 1#5AB9DA
Triadic 2#DA5AB9
Tetradic#5ADABB
On the wheel
Base+30°−30°+120°+240°+180°76°

#b9da5a sits at 76°. Every dot is a harmony position and links to its own page in the table alongside.

RGB percentages

Red72.5%
Green85.5%
Blue35.3%
R · 0–255
185
0xb9
G · 0–255
218
0xda
B · 0–255
90
0x5a

CMYK percentages

Cyan15.1%
Magenta0.0%
Yellow58.7%
Key (black)14.5%

Total ink coverage is 88%. Most commercial presses cap around 300% — above that, sheets stop drying properly.

Color previews

#b9da5a text on a black background

contrast 13.24:1

Card sample

#b9da5a text on a white background

contrast 1.59:1

Card sample

#b9da5a on grey

1.45:1

#b9da5a on its own surface

1.51:1

#b9da5a on its dark surface

10.00:1

CSS3 live lab

Text font color

The quick brown fox

color: #b9da5a;
Background color
Panel with #b9da5a background
background-color: #b9da5a;
Text shadow — hex

Glowing headline

text-shadow: 2px 2px 8px #b9da5a;
Text shadow — RGB

Soft neon halo

text-shadow: 0 0 14px rgba(185, 218, 90, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(185, 218, 90, 0.45);
Border & gradient
Gradient panel
border: 3px solid #b9da5a;
background: linear-gradient(135deg, #b9da5a, #64DA5A);
Gradient text

Gradient headline

background: linear-gradient(90deg, #b9da5a, #5ADA70);
-webkit-background-clip: text;
color: transparent;
Focus ring
Focused control
outline: 2px solid #b9da5a;
outline-offset: 3px;
Underline & caret

Marked up text

text-decoration-color: #b9da5a;
caret-color: #b9da5a;
Left rule
Pull quote or callout
border-left: 4px solid #b9da5a;
Ring + tint
Selected chip
background: #F6FAEA;
box-shadow: inset 0 0 0 2px #b9da5a;
Conic badge
68%
background: conic-gradient(#b9da5a 68%, #e2e8f0 0);

Transparency

What each alpha value actually composites to. The top row is #b9da5a 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, 218, 90, 0.5)
rgb(185 218 90 / 50%)
#b9da5a80
hsl(76 63% 60% / 50%)
color-mix(in srgb, #b9da5a 50%, transparent)
Alpha8-digit hexFlat on white
10%#b9da5a1a#F8FBEF
20%#b9da5a33#F1F8DE
40%#b9da5a66#E3F0BD
60%#b9da5a99#D5E99C
80%#b9da5acc#C7E17B

Gradients from #b9da5a

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, #CEE58C, #b9da5a 45%, #536817);
Duotone
A short hue run reads richer than a flat fill
background: linear-gradient(120deg, #b9da5a, #41D442);
Complement sweep
Loud — keep it behind large type only
background: linear-gradient(90deg, #b9da5a, #7B5ADA);
Spotlight
Hero panels and app headers
background: radial-gradient(120% 120% at 20% 0%, #D9EBA5 0%, #b9da5a 45%, #536817 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%, #E3C484 0%, transparent 60%), radial-gradient(55% 55% at 85% 15%, #84E073 0%, transparent 60%), radial-gradient(70% 70% at 50% 95%, #536817 0%, transparent 65%), #b9da5a;

Monochromatic scale

Palettes built from #b9da5a

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.

#b9da5a 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 13.24:1.

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.

#b9da5a, answered

What color is #b9da5a?

#b9da5a is a balanced vivid green, closest to Yellow Green (ΔE2000 5.3). It sits at 76° on the hue wheel with 63% saturation and 60% lightness, which reads as warm.

What is the RGB value of #b9da5a?

rgb(185, 218, 90) — 185 red, 218 green and 90 blue out of 255, or 72.5% / 85.5% / 35.3% by channel.

What is #b9da5a in HSL and HSV?

hsl(76, 63%, 60%) and hsv(75, 59%, 85%). HSL is what CSS takes; HSV is what your design tool's picker shows, which is why the saturation numbers rarely match.

Is #b9da5a a light or a dark color?

It is a light color. Relative luminance is 0.6120 and perceived brightness is 77%, so black text on it reaches 13.24:1.

Should I use black or white text on #b9da5a?

Black. It scores 13.24:1 against #b9da5a, versus 1.59:1 for white — AAA at any size.

Is #b9da5a accessible on a white background?

#b9da5a on white scores 1.59:1, which fails WCAG AA at every size. Darken it to #657F1C to reach 4.5:1, or #4B5D15 for 7:1.

What is the complementary color of #b9da5a?

#7B5ADA sits directly opposite on the wheel. Softer options are the split-complements #5A79DA and #BB5ADA, which give the same contrast with far less vibration.

What colors go well with #b9da5a?

For interface work: #F9FAF4 as the surface, #E1EDC0 for borders, #869B4B for secondary text, #5756DE as an accent and #536817 for hover and pressed states. For a palette, the analogous pair #DABB5A and #79DA5A stays calm, while #7B5ADA is the loudest partner.

What is #b9da5a in CMYK for printing?

cmyk(15%, 0%, 59%, 15%). This is a screen-to-ink approximation — ask your printer for a proof before committing to a run.

Is #b9da5a warm or cool?

Warm — it scores 38 on a scale where 0 is the warmest orange and 100 the coolest azure. Nudged warmer it becomes #DACC5A; nudged cooler, #8ADC58.

Which Tailwind color is closest to #b9da5a?

The lime family — its 500 step is #84cc16, ΔE2000 8 away. That is a visible difference, so define #b9da5a as a custom token rather than reaching for the built-in.

How do I use #b9da5a in Tailwind CSS?

Inline it as an arbitrary value with bg-[#b9da5a] or text-[#b9da5a], 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 #b9da5a with 50% opacity?

rgba(185, 218, 90, 0.5), or #b9da5a80 in eight-digit hex. Over white that composites to #DCEDAD; over black, #5D6D2D.

Is #b9da5a a web-safe color?

No. The nearest web-safe colour is #CCCC66, ΔE2000 7.5 away. The palette only matters for legacy displays and some email clients now.

What does the color #b9da5a 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 #b9da5a?

The safest is same-hue elevation: linear-gradient(135deg, #CEE58C, #b9da5a 45%, #536817). For more colour, a short hue run to #41D442 keeps it rich without turning muddy.

Work with #b9da5a in the Color Lab

Every tool opens with this colour already loaded.

Every value on this page is computed from #b9da5a at request time — conversions, contrast ratios and ΔE distances are calculated, never looked up.