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green · warm

#abca33

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

Token name suggestion: Atlas Jade

RGB
171, 202, 51
HSL
72°, 60%, 50%
CMYK
15, 0, 75, 21
Luminance
0.5114

#abca33 is a balanced vivid green, 72° on the wheel and 35/100 on the cool side. Put black text on it (11.23:1). As text it scores 1.87:1 on white — use #6A7D1F instead. Nearest name is Yellow Green, nearest Tailwind family is lime.

hsl(72 60% 50%)rgb(171 202 51)Base step 600AAA inkWarm

At a glance

Every number on this page in one read: what #abca33 is made of, how bright it looks, and which way it leans.

Hex
#abca33
Hue
72°
green
Saturation
60%
vivid
Lightness
50%
balanced
Brightness
79%
HSV value
Perceived
71%
weighted brightness
Luminance
0.5114
WCAG relative
Temperature
Warm
35/100 cool
Color family
Green
Tone
Vivid
Best ink
Black
11.23:1
Closest name
Yellow Green
ΔE2000 3.5
Chroma
73.2
LCH, 0–130ish
OKLCH L
0.789
perceptual lightness
Tailwind
lime
500 · ΔE 6.3
Web-safe
#99CC33
nearest of 216
Where it sits
Hue72° of 360°
Saturation60%
Lightness50%
Saturation × lightness field

Left edge is grey, right edge is full chroma; top is white, bottom is black. The dot is #abca33.

Temperature
Warm ← → Cool35% 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%
Green83%
Blue0%

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

Every format

HEX#abca33
HEX (8-digit)#abca33ff
RGBrgb(171, 202, 51)
RGBArgba(171, 202, 51, 1)
HSLhsl(72, 60%, 50%)
HSV / HSBhsv(72, 75%, 79%)
HWBhwb(72 20% 21%)
CMYKcmyk(15%, 0%, 75%, 21%)
LABlab(76.8 -29.9 66.9)
LCHlch(76.8 73.2 114.1)
OKLCHoklch(0.789 0.172 120.9)
XYZ (D65)xyz(38.51, 51.14, 10.97)
Decimal11258419
Display P3color(display-p3 0.671 0.792 0.200)
Web-safe#99CC33

Copy-ready code

every platformclick to select
/* CSS */
color: #abca33;
background-color: #abca33;
/* CSS custom property */
--brand: #abca33;
/* Tailwind (arbitrary) */
class="text-[#abca33] bg-[#abca33]"
/* SCSS */
$brand: #abca33;
/* SwiftUI */
Color(red: 0.671, green: 0.792, blue: 0.200)
/* UIKit */
UIColor(red: 0.671, green: 0.792, blue: 0.200, alpha: 1)
/* Android XML */
<color name="brand">#ABCA33</color>
/* Android Compose */
Color(0xFFABCA33)
/* Flutter */
Color(0xFFABCA33)
/* Python / OpenCV (BGR) */
(51, 202, 171)
/* Python / PIL (RGB) */
(171, 202, 51)
/* Java AWT */
new Color(171, 202, 51)
/* .NET */
Color.FromArgb(255, 171, 202, 51)
/* OpenGL / Unity (0–1) */
(0.6706f, 0.7922f, 0.2000f, 1f)
/* LaTeX */
\definecolor{brand}{RGB}{171,202,51}
modern cssclick to select
/* mix without leaving CSS */
background: color-mix(in oklab, #abca33 85%, white);
border-color: color-mix(in oklab, #abca33 40%, transparent);
/* theme-aware in one line */
color: light-dark(#56661A, #E9EED3);
/* relative colour syntax */
--hover: hsl(from #abca33 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: #F4F7E9;
  --brand-200: #E8EFCC;
  --brand-300: #DBE8A5;
  --brand-400: #C8DD79;
  --brand-500: #B6D24C;
  --brand-600: #abca33;
  --brand-700: #8AA329;
  --brand-800: #6E8221;
  --brand-900: #515F1C;
  --brand-950: #333B11;
  --brand: #abca33;
  --brand-ink: #000000;
  --brand-surface: #F9FAF4;
  --brand-border: #E3EDC0;
  --brand-hover: #93AD2C;
  --brand-pressed: #7B9125;
}
@media (prefers-color-scheme: dark) {
  :root {
    --brand-surface: #212414;
    --brand-ink: #E9EED3;
  }
}
tailwind.config.jsclick to select
theme: {
  extend: {
    colors: {
      brand: {
        50: '#F9FBF4',
        100: '#F4F7E9',
        200: '#E8EFCC',
        300: '#DBE8A5',
        400: '#C8DD79',
        500: '#B6D24C',
        600: '#abca33',
        700: '#8AA329',
        800: '#6E8221',
        900: '#515F1C',
        950: '#333B11',
        DEFAULT: '#abca33',
      },
    },
  },
}
scss mapclick to select
$brand: (
  '50': #F9FBF4,
  '100': #F4F7E9,
  '200': #E8EFCC,
  '300': #DBE8A5,
  '400': #C8DD79,
  '500': #B6D24C,
  '600': #abca33,
  '700': #8AA329,
  '800': #6E8221,
  '900': #515F1C,
  '950': #333B11,
);
$brand-base: #abca33;
$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": "#F4F7E9", "$type": "color" },
      "200": { "$value": "#E8EFCC", "$type": "color" },
      "300": { "$value": "#DBE8A5", "$type": "color" },
      "400": { "$value": "#C8DD79", "$type": "color" },
      "500": { "$value": "#B6D24C", "$type": "color" },
      "600": { "$value": "#abca33", "$type": "color" },
      "700": { "$value": "#8AA329", "$type": "color" },
      "800": { "$value": "#6E8221", "$type": "color" },
      "900": { "$value": "#515F1C", "$type": "color" },
      "950": { "$value": "#333B11", "$type": "color" }
    },
    "brandInk": { "$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 #abca33 · 11.23:1
Use #000000AAA at every size.
Aa
12px
Aa
16px
Aa
24px
Aa
White text · 1.87:1
AA fail · AA large fail · AAA fail
Aa
Black text · 11.23:1 · recommended
AA pass · AA large pass · AAA pass
Reading the other direction: #abca33 as text scores 1.87:1 on white and 11.23:1 on black.
Best tinted ink on it, if plain black or white feels flat: #56661A at 3.39:1.

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
#6A7D1F · 4.60:1
AA on white−19% L
#6A7D1F
The quick fox
#4E5C17 · 7.32:1
AAA on white−27% L
#4E5C17
The quick fox
#abca33 · 11.23:1
AA on blackalready passes
#abca33
The quick fox
#abca33 · 11.23:1
AAA on blackalready passes
#abca33

Large text — 24px regular or 18.66px bold and above — only needs 3:1, so #859D28 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
#abca33 on white: 1.87:1
AA ✗ fail · AA-large · AAA
Aa
#abca33 on black: 11.23:1
AA ✓ pass · AA-large · AAA
Against the neutral ladder

Contrast is symmetric, so each row covers both directions: #abca33 as text on that neutral, and that neutral as text on #abca33.

NeutralRatioBoth directions
White1.87:1AaAa
Slate 501.79:1AaAa
Slate 1001.71:1AaAa
Slate 2001.52:1AaAa
Slate 3001.26:1AaAa
Slate 4001.37:1AaAa
Slate 5002.54:1AaAa
Slate 6004.05:1AaAa
Slate 7005.54:1AaAa
Slate 8007.82:1AaAa
Slate 9009.54:1AaAa
Black11.23:1AaAa
Colour vision deficiency
true color
protanopia · #D7BE0F
deuteranopia · #D3BE41
tritanopia · #B5BFAD

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. #abca33 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.

#F9FBF4
#F4F7E9
#E8EFCC
#DBE8A5
#C8DD79
#B6D24C
#abca33
#8AA329
#6E8221
#515F1C
#333B11
Base = 600Lightest = 50 · #F9FBF4Darkest = 950 · #333B11Text 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 0.043 120.9);
  --brand-100: oklch(0.94 0.069 120.9);
  --brand-200: oklch(0.88 0.103 120.9);
  --brand-300: oklch(0.80 0.134 120.9);
  --brand-400: oklch(0.72 0.158 120.9);
  --brand-500: oklch(0.64 0.172 120.9);
  --brand-600: oklch(0.56 0.172 120.9);
  --brand-700: oklch(0.48 0.162 120.9);
  --brand-800: oklch(0.40 0.145 120.9);
  --brand-900: oklch(0.32 0.120 120.9);
  --brand-950: oklch(0.24 0.095 120.9);
}

Colors that work with #abca33

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#E3EDC0
Hairlines and dividers
Muted text#8A9B4B
Captions on the surface
Accent#2E35CF
Second voice, not a rival
Dark variant#56661A
Hover, pressed, headers
Light variant#F7FAEB
Selected rows, tints
Dark surface#212414
Dark-mode background
Hover#93AD2C
One step down in lightness
Pressed#7B9125
Two steps down
Disabled#C0C7A7
Chroma pulled out
Focus ring#B9DB36
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 #abca33

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 #56661A
Safe as a 1px border on white
No — use #859D28

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
  • Weight50/100
  • 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#5233CA
Analogous left#CA9D33
Analogous right#60CA33
Split-complement 1#3360CA
Split-complement 2#9D33CA
Triadic 1#33ABCA
Triadic 2#CA33AB
Tetradic#33CA9D
On the wheel
Base+30°−30°+120°+240°+180°72°

#abca33 sits at 72°. Every dot is a harmony position and links to its own page in the table alongside.

RGB percentages

Red67.1%
Green79.2%
Blue20.0%
R · 0–255
171
0xab
G · 0–255
202
0xca
B · 0–255
51
0x33

CMYK percentages

Cyan15.3%
Magenta0.0%
Yellow74.8%
Key (black)20.8%

Total ink coverage is 111%. Most commercial presses cap around 300% — above that, sheets stop drying properly.

Color previews

#abca33 text on a black background

contrast 11.23:1

Card sample

#abca33 text on a white background

contrast 1.87:1

Card sample

#abca33 on grey

1.71:1

#abca33 on its own surface

1.78:1

#abca33 on its dark surface

8.46:1

CSS3 live lab

Text font color

The quick brown fox

color: #abca33;
Background color
Panel with #abca33 background
background-color: #abca33;
Text shadow — hex

Glowing headline

text-shadow: 2px 2px 8px #abca33;
Text shadow — RGB

Soft neon halo

text-shadow: 0 0 14px rgba(171, 202, 51, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(171, 202, 51, 0.45);
Border & gradient
Gradient panel
border: 3px solid #abca33;
background: linear-gradient(135deg, #abca33, #46CA33);
Gradient text

Gradient headline

background: linear-gradient(90deg, #abca33, #33CA45);
-webkit-background-clip: text;
color: transparent;
Focus ring
Focused control
outline: 2px solid #abca33;
outline-offset: 3px;
Underline & caret

Marked up text

text-decoration-color: #abca33;
caret-color: #abca33;
Left rule
Pull quote or callout
border-left: 4px solid #abca33;
Ring + tint
Selected chip
background: #F7FAEB;
box-shadow: inset 0 0 0 2px #abca33;
Conic badge
68%
background: conic-gradient(#abca33 68%, #e2e8f0 0);

Transparency

What each alpha value actually composites to. The top row is #abca33 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(171, 202, 51, 0.5)
rgb(171 202 51 / 50%)
#abca3380
hsl(72 60% 50% / 50%)
color-mix(in srgb, #abca33 50%, transparent)
Alpha8-digit hexFlat on white
10%#abca331a#F7FAEB
20%#abca3333#EEF4D6
40%#abca3366#DDEAAD
60%#abca3399#CDDF85
80%#abca33cc#BCD55C

Gradients from #abca33

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, #C0D863, #abca33 45%, #56661A);
Duotone
A short hue run reads richer than a flat fill
background: linear-gradient(120deg, #abca33, #33B22D);
Complement sweep
Loud — keep it behind large type only
background: linear-gradient(90deg, #abca33, #5233CA);
Spotlight
Hero panels and app headers
background: radial-gradient(120% 120% at 20% 0%, #C9DE7B 0%, #abca33 45%, #56661A 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%, #D5A75A 0%, transparent 60%), radial-gradient(55% 55% at 85% 15%, #67D14A 0%, transparent 60%), radial-gradient(70% 70% at 50% 95%, #56661A 0%, transparent 65%), #abca33;

Monochromatic scale

Palettes built from #abca33

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.

#abca33 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 11.23:1.

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.

#abca33, answered

What color is #abca33?

#abca33 is a balanced vivid green, closest to Yellow Green (ΔE2000 3.5). It sits at 72° on the hue wheel with 60% saturation and 50% lightness, which reads as warm.

What is the RGB value of #abca33?

rgb(171, 202, 51) — 171 red, 202 green and 51 blue out of 255, or 67.1% / 79.2% / 20% by channel.

What is #abca33 in HSL and HSV?

hsl(72, 60%, 50%) and hsv(72, 75%, 79%). HSL is what CSS takes; HSV is what your design tool's picker shows, which is why the saturation numbers rarely match.

Is #abca33 a light or a dark color?

It is a light color. Relative luminance is 0.5114 and perceived brightness is 71%, so black text on it reaches 11.23:1.

Should I use black or white text on #abca33?

Black. It scores 11.23:1 against #abca33, versus 1.87:1 for white — AAA at any size.

Is #abca33 accessible on a white background?

#abca33 on white scores 1.87:1, which fails WCAG AA at every size. Darken it to #6A7D1F to reach 4.5:1, or #4E5C17 for 7:1.

What is the complementary color of #abca33?

#5233CA sits directly opposite on the wheel. Softer options are the split-complements #3360CA and #9D33CA, which give the same contrast with far less vibration.

What colors go well with #abca33?

For interface work: #F9FAF4 as the surface, #E3EDC0 for borders, #8A9B4B for secondary text, #2E35CF as an accent and #56661A for hover and pressed states. For a palette, the analogous pair #CA9D33 and #60CA33 stays calm, while #5233CA is the loudest partner.

What is #abca33 in CMYK for printing?

cmyk(15%, 0%, 75%, 21%). This is a screen-to-ink approximation — ask your printer for a proof before committing to a run.

Is #abca33 warm or cool?

Warm — it scores 35 on a scale where 0 is the warmest orange and 100 the coolest azure. Nudged warmer it becomes #CAB233; nudged cooler, #73CD30.

Which Tailwind color is closest to #abca33?

The lime family — its 500 step is #84cc16, ΔE2000 6.3 away. That is a visible difference, so define #abca33 as a custom token rather than reaching for the built-in.

How do I use #abca33 in Tailwind CSS?

Inline it as an arbitrary value with bg-[#abca33] or text-[#abca33], 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 #abca33 with 50% opacity?

rgba(171, 202, 51, 0.5), or #abca3380 in eight-digit hex. Over white that composites to #D5E599; over black, #56651A.

Is #abca33 a web-safe color?

No. The nearest web-safe colour is #99CC33, ΔE2000 3.6 away. The palette only matters for legacy displays and some email clients now.

What does the color #abca33 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 #abca33?

The safest is same-hue elevation: linear-gradient(135deg, #C0D863, #abca33 45%, #56661A). For more colour, a short hue run to #33B22D keeps it rich without turning muddy.

Work with #abca33 in the Color Lab

Every tool opens with this colour already loaded.

Every value on this page is computed from #abca33 at request time — conversions, contrast ratios and ΔE distances are calculated, never looked up.