Skip to content
green · warm

#acd739

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

Token name suggestion: Studio Basil

RGB
172, 215, 57
HSL
76°, 66%, 53%
CMYK
20, 0, 74, 16
Luminance
0.5767

#acd739 is a balanced vivid green, 76° on the wheel and 39/100 on the cool side. Put black text on it (12.53:1). As text it scores 1.68:1 on white — use #617C19 instead. Nearest name is Yellow Green, nearest Tailwind family is lime.

hsl(76 66% 53%)rgb(172 215 57)Base step 500AAA inkWarm

At a glance

Every number on this page in one read: what #acd739 is made of, how bright it looks, and which way it leans.

Hex
#acd739
Hue
76°
green
Saturation
66%
vivid
Lightness
53%
balanced
Brightness
84%
HSV value
Perceived
75%
weighted brightness
Luminance
0.5767
WCAG relative
Temperature
Warm
39/100 cool
Color family
Green
Tone
Vivid
Best ink
Black
12.53:1
Closest name
Yellow Green
ΔE2000 3.2
Chroma
77.0
LCH, 0–130ish
OKLCH L
0.820
perceptual lightness
Tailwind
lime
500 · ΔE 5.7
Web-safe
#99CC33
nearest of 216
Where it sits
Hue76° of 360°
Saturation66%
Lightness53%
Saturation × lightness field

Left edge is grey, right edge is full chroma; top is white, bottom is black. The dot is #acd739.

Temperature
Warm ← → Cool39% 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
Red15%
Green84%
Blue1%

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

Every format

HEX#acd739
HEX (8-digit)#acd739ff
RGBrgb(172, 215, 57)
RGBArgba(172, 215, 57, 1)
HSLhsl(76, 66%, 53%)
HSV / HSBhsv(76, 73%, 84%)
HWBhwb(76 22% 16%)
CMYKcmyk(20%, 0%, 74%, 16%)
LABlab(80.5 -35.2 68.5)
LCHlch(80.5 77.0 117.2)
OKLCHoklch(0.820 0.183 124.0)
XYZ (D65)xyz(42.05, 57.67, 12.79)
Decimal11327289
Display P3color(display-p3 0.675 0.843 0.224)
Web-safe#99CC33

Copy-ready code

every platformclick to select
/* CSS */
color: #acd739;
background-color: #acd739;
/* CSS custom property */
--brand: #acd739;
/* Tailwind (arbitrary) */
class="text-[#acd739] bg-[#acd739]"
/* SCSS */
$brand: #acd739;
/* SwiftUI */
Color(red: 0.675, green: 0.843, blue: 0.224)
/* UIKit */
UIColor(red: 0.675, green: 0.843, blue: 0.224, alpha: 1)
/* Android XML */
<color name="brand">#ACD739</color>
/* Android Compose */
Color(0xFFACD739)
/* Flutter */
Color(0xFFACD739)
/* Python / OpenCV (BGR) */
(57, 215, 172)
/* Python / PIL (RGB) */
(172, 215, 57)
/* Java AWT */
new Color(172, 215, 57)
/* .NET */
Color.FromArgb(255, 172, 215, 57)
/* OpenGL / Unity (0–1) */
(0.6745f, 0.8431f, 0.2235f, 1f)
/* LaTeX */
\definecolor{brand}{RGB}{172,215,57}
modern cssclick to select
/* mix without leaving CSS */
background: color-mix(in oklab, #acd739 85%, white);
border-color: color-mix(in oklab, #acd739 40%, transparent);
/* theme-aware in one line */
color: light-dark(#536A15, #E7EED3);
/* relative colour syntax */
--hover: hsl(from #acd739 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: #F9FBF3;
  --brand-100: #F3F8E8;
  --brand-200: #E7F1CA;
  --brand-300: #D8ECA2;
  --brand-400: #C4E373;
  --brand-500: #acd739;
  --brand-600: #A0CC29;
  --brand-700: #85AA22;
  --brand-800: #6A881B;
  --brand-900: #4E6318;
  --brand-950: #313E0F;
  --brand: #acd739;
  --brand-ink: #000000;
  --brand-surface: #F9FAF4;
  --brand-border: #E0EDC0;
  --brand-hover: #9AC428;
  --brand-pressed: #83A722;
}
@media (prefers-color-scheme: dark) {
  :root {
    --brand-surface: #202414;
    --brand-ink: #E7EED3;
  }
}
tailwind.config.jsclick to select
theme: {
  extend: {
    colors: {
      brand: {
        50: '#F9FBF3',
        100: '#F3F8E8',
        200: '#E7F1CA',
        300: '#D8ECA2',
        400: '#C4E373',
        500: '#acd739',
        600: '#A0CC29',
        700: '#85AA22',
        800: '#6A881B',
        900: '#4E6318',
        950: '#313E0F',
        DEFAULT: '#acd739',
      },
    },
  },
}
scss mapclick to select
$brand: (
  '50': #F9FBF3,
  '100': #F3F8E8,
  '200': #E7F1CA,
  '300': #D8ECA2,
  '400': #C4E373,
  '500': #acd739,
  '600': #A0CC29,
  '700': #85AA22,
  '800': #6A881B,
  '900': #4E6318,
  '950': #313E0F,
);
$brand-base: #acd739;
$brand-ink: #000000;

@function brand($step) { @return map-get($brand, $step); }
w3c design tokens (json)click to select
{
  "color": {
    "brand": {
      "50": { "$value": "#F9FBF3", "$type": "color" },
      "100": { "$value": "#F3F8E8", "$type": "color" },
      "200": { "$value": "#E7F1CA", "$type": "color" },
      "300": { "$value": "#D8ECA2", "$type": "color" },
      "400": { "$value": "#C4E373", "$type": "color" },
      "500": { "$value": "#acd739", "$type": "color" },
      "600": { "$value": "#A0CC29", "$type": "color" },
      "700": { "$value": "#85AA22", "$type": "color" },
      "800": { "$value": "#6A881B", "$type": "color" },
      "900": { "$value": "#4E6318", "$type": "color" },
      "950": { "$value": "#313E0F", "$type": "color" }
    },
    "brandInk": { "$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 #acd739 · 12.53:1
Use #000000AAA at every size.
Aa
12px
Aa
16px
Aa
24px
Aa
White text · 1.68:1
AA fail · AA large fail · AAA fail
Aa
Black text · 12.53:1 · recommended
AA pass · AA large pass · AAA pass
Reading the other direction: #acd739 as text scores 1.68:1 on white and 12.53:1 on black.
Best tinted ink on it, if plain black or white feels flat: #536A15 at 3.64:1.

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
#617C19 · 4.77:1
AA on white−24% L
#617C19
The quick fox
#4A5F13 · 7.15:1
AAA on white−31% L
#4A5F13
The quick fox
#acd739 · 12.53:1
AA on blackalready passes
#acd739
The quick fox
#acd739 · 12.53:1
AAA on blackalready passes
#acd739

Large text — 24px regular or 18.66px bold and above — only needs 3:1, so #7C9E20 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
#acd739 on white: 1.68:1
AA ✗ fail · AA-large · AAA
Aa
#acd739 on black: 12.53:1
AA ✓ pass · AA-large · AAA
Against the neutral ladder

Contrast is symmetric, so each row covers both directions: #acd739 as text on that neutral, and that neutral as text on #acd739.

NeutralRatioBoth directions
White1.68:1AaAa
Slate 501.60:1AaAa
Slate 1001.53:1AaAa
Slate 2001.36:1AaAa
Slate 3001.13:1AaAa
Slate 4001.53:1AaAa
Slate 5002.84:1AaAa
Slate 6004.52:1AaAa
Slate 7006.18:1AaAa
Slate 8008.73:1AaAa
Slate 90010.65:1AaAa
Black12.53:1AaAa
Colour vision deficiency
true color
protanopia · #E3C917
deuteranopia · #DEC848
tritanopia · #B4CCB9

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. #acd739 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.

#F9FBF3
#F3F8E8
#E7F1CA
#D8ECA2
#C4E373
#acd739
#A0CC29
#85AA22
#6A881B
#4E6318
#313E0F
Base = 500Lightest = 50 · #F9FBF3Darkest = 950 · #313E0FText 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 0.046 124.0);
  --brand-100: oklch(0.94 0.073 124.0);
  --brand-200: oklch(0.88 0.110 124.0);
  --brand-300: oklch(0.80 0.143 124.0);
  --brand-400: oklch(0.72 0.169 124.0);
  --brand-500: oklch(0.64 0.183 124.0);
  --brand-600: oklch(0.56 0.183 124.0);
  --brand-700: oklch(0.48 0.172 124.0);
  --brand-800: oklch(0.40 0.154 124.0);
  --brand-900: oklch(0.32 0.128 124.0);
  --brand-950: oklch(0.24 0.101 124.0);
}

Colors that work with #acd739

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#E0EDC0
Hairlines and dividers
Muted text#859B4B
Captions on the surface
Accent#3834DC
Second voice, not a rival
Dark variant#536A15
Hover, pressed, headers
Light variant#F6FBEA
Selected rows, tints
Dark surface#202414
Dark-mode background
Hover#9AC428
One step down in lightness
Pressed#83A722
Two steps down
Disabled#C6CEB2
Chroma pulled out
Focus ring#B8E53F
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 #acd739

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 #536A15
Safe as a 1px border on white
No — use #7C9E20

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
  • Weight47/100
  • 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#6439D7
Analogous left#D7B339
Analogous right#5DD739
Split-complement 1#395DD7
Split-complement 2#B339D7
Triadic 1#39ACD7
Triadic 2#D739AC
Tetradic#39D7B3
On the wheel
Base+30°−30°+120°+240°+180°76°

#acd739 sits at 76°. Every dot is a harmony position and links to its own page in the table alongside.

RGB percentages

Red67.5%
Green84.3%
Blue22.4%
R · 0–255
172
0xac
G · 0–255
215
0xd7
B · 0–255
57
0x39

CMYK percentages

Cyan20.0%
Magenta0.0%
Yellow73.5%
Key (black)15.7%

Total ink coverage is 109%. Most commercial presses cap around 300% — above that, sheets stop drying properly.

Color previews

#acd739 text on a black background

contrast 12.53:1

Card sample

#acd739 text on a white background

contrast 1.68:1

Card sample

#acd739 on grey

1.53:1

#acd739 on its own surface

1.60:1

#acd739 on its dark surface

9.47:1

CSS3 live lab

Text font color

The quick brown fox

color: #acd739;
Background color
Panel with #acd739 background
background-color: #acd739;
Text shadow — hex

Glowing headline

text-shadow: 2px 2px 8px #acd739;
Text shadow — RGB

Soft neon halo

text-shadow: 0 0 14px rgba(172, 215, 57, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(172, 215, 57, 0.45);
Border & gradient
Gradient panel
border: 3px solid #acd739;
background: linear-gradient(135deg, #acd739, #43D739);
Gradient text

Gradient headline

background: linear-gradient(90deg, #acd739, #39D757);
-webkit-background-clip: text;
color: transparent;
Focus ring
Focused control
outline: 2px solid #acd739;
outline-offset: 3px;
Underline & caret

Marked up text

text-decoration-color: #acd739;
caret-color: #acd739;
Left rule
Pull quote or callout
border-left: 4px solid #acd739;
Ring + tint
Selected chip
background: #F6FBEA;
box-shadow: inset 0 0 0 2px #acd739;
Conic badge
68%
background: conic-gradient(#acd739 68%, #e2e8f0 0);

Transparency

What each alpha value actually composites to. The top row is #acd739 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(172, 215, 57, 0.5)
rgb(172 215 57 / 50%)
#acd73980
hsl(76 66% 53% / 50%)
color-mix(in srgb, #acd739 50%, transparent)
Alpha8-digit hexFlat on white
10%#acd7391a#F7FBEB
20%#acd73933#EEF7D7
40%#acd73966#DEEFB0
60%#acd73999#CDE788
80%#acd739cc#BDDF61

Gradients from #acd739

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, #C1E16C, #acd739 45%, #536A15);
Duotone
A short hue run reads richer than a flat fill
background: linear-gradient(120deg, #acd739, #29C92C);
Complement sweep
Loud — keep it behind large type only
background: linear-gradient(90deg, #acd739, #6439D7);
Spotlight
Hero panels and app headers
background: radial-gradient(120% 120% at 20% 0%, #CCE685 0%, #acd739 45%, #536A15 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%, #E0B963 0%, transparent 60%), radial-gradient(55% 55% at 85% 15%, #66DC52 0%, transparent 60%), radial-gradient(70% 70% at 50% 95%, #536A15 0%, transparent 65%), #acd739;

Monochromatic scale

Palettes built from #acd739

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.

#acd739 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 12.53:1.

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.

#acd739, answered

What color is #acd739?

#acd739 is a balanced vivid green, closest to Yellow Green (ΔE2000 3.2). It sits at 76° on the hue wheel with 66% saturation and 53% lightness, which reads as warm.

What is the RGB value of #acd739?

rgb(172, 215, 57) — 172 red, 215 green and 57 blue out of 255, or 67.5% / 84.3% / 22.4% by channel.

What is #acd739 in HSL and HSV?

hsl(76, 66%, 53%) and hsv(76, 73%, 84%). HSL is what CSS takes; HSV is what your design tool's picker shows, which is why the saturation numbers rarely match.

Is #acd739 a light or a dark color?

It is a light color. Relative luminance is 0.5767 and perceived brightness is 75%, so black text on it reaches 12.53:1.

Should I use black or white text on #acd739?

Black. It scores 12.53:1 against #acd739, versus 1.68:1 for white — AAA at any size.

Is #acd739 accessible on a white background?

#acd739 on white scores 1.68:1, which fails WCAG AA at every size. Darken it to #617C19 to reach 4.5:1, or #4A5F13 for 7:1.

What is the complementary color of #acd739?

#6439D7 sits directly opposite on the wheel. Softer options are the split-complements #395DD7 and #B339D7, which give the same contrast with far less vibration.

What colors go well with #acd739?

For interface work: #F9FAF4 as the surface, #E0EDC0 for borders, #859B4B for secondary text, #3834DC as an accent and #536A15 for hover and pressed states. For a palette, the analogous pair #D7B339 and #5DD739 stays calm, while #6439D7 is the loudest partner.

What is #acd739 in CMYK for printing?

cmyk(20%, 0%, 74%, 16%). This is a screen-to-ink approximation — ask your printer for a proof before committing to a run.

Is #acd739 warm or cool?

Warm — it scores 39 on a scale where 0 is the warmest orange and 100 the coolest azure. Nudged warmer it becomes #D7C839; nudged cooler, #71D936.

Which Tailwind color is closest to #acd739?

The lime family — its 500 step is #84cc16, ΔE2000 5.7 away. That is a visible difference, so define #acd739 as a custom token rather than reaching for the built-in.

How do I use #acd739 in Tailwind CSS?

Inline it as an arbitrary value with bg-[#acd739] or text-[#acd739], 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 #acd739 with 50% opacity?

rgba(172, 215, 57, 0.5), or #acd73980 in eight-digit hex. Over white that composites to #D6EB9C; over black, #566C1D.

Is #acd739 a web-safe color?

No. The nearest web-safe colour is #99CC33, ΔE2000 3.5 away. The palette only matters for legacy displays and some email clients now.

What does the color #acd739 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 #acd739?

The safest is same-hue elevation: linear-gradient(135deg, #C1E16C, #acd739 45%, #536A15). For more colour, a short hue run to #29C92C keeps it rich without turning muddy.

Work with #acd739 in the Color Lab

Every tool opens with this colour already loaded.

Every value on this page is computed from #acd739 at request time — conversions, contrast ratios and ΔE distances are calculated, never looked up.