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green · neutral

#ace09c

a light, vivid green · neutral · closest name: Light Green

Token name suggestion: Morning Fern

RGB
172, 224, 156
HSL
106°, 52%, 75%
CMYK
23, 0, 30, 12
Luminance
0.6448

#ace09c is a light vivid green, 106° on the wheel and 57/100 on the cool side. Put black text on it (13.90:1). As text it scores 1.51:1 on white — use #40862A instead. Nearest name is Light Green, nearest Tailwind family is green.

hsl(106 52% 75%)rgb(172 224 156)Base step 300AAA inkNeutral

At a glance

Every number on this page in one read: what #ace09c is made of, how bright it looks, and which way it leans.

Hex
#ace09c
Hue
106°
green
Saturation
52%
vivid
Lightness
75%
light
Brightness
88%
HSV value
Perceived
79%
weighted brightness
Luminance
0.6448
WCAG relative
Temperature
Neutral
57/100 cool
Color family
Green
Tone
Vivid
Best ink
Black
13.90:1
Closest name
Light Green
ΔE2000 6.4
Chroma
40.5
LCH, 0–130ish
OKLCH L
0.854
perceptual lightness
Tailwind
green
500 · ΔE 14.4
Web-safe
#99CC99
nearest of 216
Where it sits
Hue106° of 360°
Saturation52%
Lightness75%
Saturation × lightness field

Left edge is grey, right edge is full chroma; top is white, bottom is black. The dot is #ace09c.

Temperature
Warm ← → Cool57% 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
Red14%
Green83%
Blue4%

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

Every format

HEX#ace09c
HEX (8-digit)#ace09cff
RGBrgb(172, 224, 156)
RGBArgba(172, 224, 156, 1)
HSLhsl(106, 52%, 75%)
HSV / HSBhsv(106, 30%, 88%)
HWBhwb(106 61% 12%)
CMYKcmyk(23%, 0%, 30%, 12%)
LABlab(84.2 -29.2 28.0)
LCHlch(84.2 40.5 136.2)
OKLCHoklch(0.854 0.106 138.5)
XYZ (D65)xyz(49.67, 64.48, 41.28)
Decimal11329692
Display P3color(display-p3 0.675 0.878 0.612)
Web-safe#99CC99

Copy-ready code

every platformclick to select
/* CSS */
color: #ace09c;
background-color: #ace09c;
/* CSS custom property */
--brand: #ace09c;
/* Tailwind (arbitrary) */
class="text-[#ace09c] bg-[#ace09c]"
/* SCSS */
$brand: #ace09c;
/* SwiftUI */
Color(red: 0.675, green: 0.878, blue: 0.612)
/* UIKit */
UIColor(red: 0.675, green: 0.878, blue: 0.612, alpha: 1)
/* Android XML */
<color name="brand">#ACE09C</color>
/* Android Compose */
Color(0xFFACE09C)
/* Flutter */
Color(0xFFACE09C)
/* Python / OpenCV (BGR) */
(156, 224, 172)
/* Python / PIL (RGB) */
(172, 224, 156)
/* Java AWT */
new Color(172, 224, 156)
/* .NET */
Color.FromArgb(255, 172, 224, 156)
/* OpenGL / Unity (0–1) */
(0.6745f, 0.8784f, 0.6118f, 1f)
/* LaTeX */
\definecolor{brand}{RGB}{172,224,156}
modern cssclick to select
/* mix without leaving CSS */
background: color-mix(in oklab, #ace09c 85%, white);
border-color: color-mix(in oklab, #ace09c 40%, transparent);
/* theme-aware in one line */
color: light-dark(#2E611E, #D9EED3);
/* relative colour syntax */
--hover: hsl(from #ace09c 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: #F6FAF4;
  --brand-100: #ECF6E9;
  --brand-200: #D6EDCF;
  --brand-300: #ace09c;
  --brand-400: #94D77F;
  --brand-500: #70C954;
  --brand-600: #58BA3A;
  --brand-700: #4A9B31;
  --brand-800: #3B7C27;
  --brand-900: #2E5B20;
  --brand-950: #1C3914;
  --brand: #ace09c;
  --brand-ink: #000000;
  --brand-surface: #F6FAF4;
  --brand-border: #CBECC1;
  --brand-hover: #95D781;
  --brand-pressed: #7ECF66;
}
@media (prefers-color-scheme: dark) {
  :root {
    --brand-surface: #182414;
    --brand-ink: #D9EED3;
  }
}
tailwind.config.jsclick to select
theme: {
  extend: {
    colors: {
      brand: {
        50: '#F6FAF4',
        100: '#ECF6E9',
        200: '#D6EDCF',
        300: '#ace09c',
        400: '#94D77F',
        500: '#70C954',
        600: '#58BA3A',
        700: '#4A9B31',
        800: '#3B7C27',
        900: '#2E5B20',
        950: '#1C3914',
        DEFAULT: '#ace09c',
      },
    },
  },
}
scss mapclick to select
$brand: (
  '50': #F6FAF4,
  '100': #ECF6E9,
  '200': #D6EDCF,
  '300': #ace09c,
  '400': #94D77F,
  '500': #70C954,
  '600': #58BA3A,
  '700': #4A9B31,
  '800': #3B7C27,
  '900': #2E5B20,
  '950': #1C3914,
);
$brand-base: #ace09c;
$brand-ink: #000000;

@function brand($step) { @return map-get($brand, $step); }
w3c design tokens (json)click to select
{
  "color": {
    "brand": {
      "50": { "$value": "#F6FAF4", "$type": "color" },
      "100": { "$value": "#ECF6E9", "$type": "color" },
      "200": { "$value": "#D6EDCF", "$type": "color" },
      "300": { "$value": "#ace09c", "$type": "color" },
      "400": { "$value": "#94D77F", "$type": "color" },
      "500": { "$value": "#70C954", "$type": "color" },
      "600": { "$value": "#58BA3A", "$type": "color" },
      "700": { "$value": "#4A9B31", "$type": "color" },
      "800": { "$value": "#3B7C27", "$type": "color" },
      "900": { "$value": "#2E5B20", "$type": "color" },
      "950": { "$value": "#1C3914", "$type": "color" }
    },
    "brandInk": { "$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 #ace09c · 13.90:1
Use #000000AAA at every size.
Aa
12px
Aa
16px
Aa
24px
Aa
White text · 1.51:1
AA fail · AA large fail · AAA fail
Aa
Black text · 13.90:1 · recommended
AA pass · AA large pass · AAA pass
Reading the other direction: #ace09c as text scores 1.51:1 on white and 13.90:1 on black.
Best tinted ink on it, if plain black or white feels flat: #2E611E at 4.88:1.

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
#40862A · 4.51:1
AA on white−40% L
#40862A
The quick fox
#2F631F · 7.18:1
AAA on white−49% L
#2F631F
The quick fox
#ace09c · 13.90:1
AA on blackalready passes
#ace09c
The quick fox
#ace09c · 13.90:1
AAA on blackalready passes
#ace09c

Large text — 24px regular or 18.66px bold and above — only needs 3:1, so #4EA534 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
#ace09c on white: 1.51:1
AA ✗ fail · AA-large · AAA
Aa
#ace09c on black: 13.90:1
AA ✓ pass · AA-large · AAA
Against the neutral ladder

Contrast is symmetric, so each row covers both directions: #ace09c as text on that neutral, and that neutral as text on #ace09c.

NeutralRatioBoth directions
White1.51:1AaAa
Slate 501.44:1AaAa
Slate 1001.38:1AaAa
Slate 2001.23:1AaAa
Slate 3001.02:1AaAa
Slate 4001.70:1AaAa
Slate 5003.15:1AaAa
Slate 6005.01:1AaAa
Slate 7006.85:1AaAa
Slate 8009.68:1AaAa
Slate 90011.81:1AaAa
Black13.90:1AaAa
Colour vision deficiency
true color
protanopia · #E4D598
deuteranopia · #DCD0A0
tritanopia · #AADBCE

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. #ace09c is pinned to step 300; the rest hold its hue and let saturation ease off at the extremes so the pale end never turns neon.

#F6FAF4
#ECF6E9
#D6EDCF
#ace09c
#94D77F
#70C954
#58BA3A
#4A9B31
#3B7C27
#2E5B20
#1C3914
Base = 300Lightest = 50 · #F6FAF4Darkest = 950 · #1C3914Text step on white = 800
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 0.027 138.5);
  --brand-100: oklch(0.94 0.043 138.5);
  --brand-200: oklch(0.88 0.064 138.5);
  --brand-300: oklch(0.80 0.083 138.5);
  --brand-400: oklch(0.72 0.098 138.5);
  --brand-500: oklch(0.64 0.106 138.5);
  --brand-600: oklch(0.56 0.106 138.5);
  --brand-700: oklch(0.48 0.100 138.5);
  --brand-800: oklch(0.40 0.089 138.5);
  --brand-900: oklch(0.32 0.074 138.5);
  --brand-950: oklch(0.24 0.059 138.5);
}

Colors that work with #ace09c

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#F6FAF4
Tinted page background
Border#CBECC1
Hairlines and dividers
Muted text#5D9B4B
Captions on the surface
Accent#682CA0
Second voice, not a rival
Dark variant#2E611E
Hover, pressed, headers
Light variant#EFF9EC
Selected rows, tints
Dark surface#182414
Dark-mode background
Hover#95D781
One step down in lightness
Pressed#7ECF66
Two steps down
Disabled#F4F7F3
Chroma pulled out
Focus ring#B6EAA6
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 #ace09c

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 #2E611E
Safe as a 1px border on white
No — use #4EA534

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 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
  • FormalityMedium
  • EnergyMedium-high
  • Weight26/100
  • 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#D09CE0
Analogous left#CEE09C
Analogous right#9CE0AE
Split-complement 1#AE9CE0
Split-complement 2#E09CCE
Triadic 1#9CACE0
Triadic 2#E09CAC
Tetradic#9CCEE0
On the wheel
Base+30°−30°+120°+240°+180°106°

#ace09c sits at 106°. Every dot is a harmony position and links to its own page in the table alongside.

RGB percentages

Red67.5%
Green87.8%
Blue61.2%
R · 0–255
172
0xac
G · 0–255
224
0xe0
B · 0–255
156
0x9c

CMYK percentages

Cyan23.2%
Magenta0.0%
Yellow30.4%
Key (black)12.2%

Total ink coverage is 66%. Most commercial presses cap around 300% — above that, sheets stop drying properly.

Color previews

#ace09c text on a black background

contrast 13.90:1

Card sample

#ace09c text on a white background

contrast 1.51:1

Card sample

#ace09c on grey

1.38:1

#ace09c on its own surface

1.43:1

#ace09c on its dark surface

10.68:1

CSS3 live lab

Text font color

The quick brown fox

color: #ace09c;
Background color
Panel with #ace09c background
background-color: #ace09c;
Text shadow — hex

Glowing headline

text-shadow: 2px 2px 8px #ace09c;
Text shadow — RGB

Soft neon halo

text-shadow: 0 0 14px rgba(172, 224, 156, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(172, 224, 156, 0.45);
Border & gradient
Gradient panel
border: 3px solid #ace09c;
background: linear-gradient(135deg, #ace09c, #9CE0B9);
Gradient text

Gradient headline

background: linear-gradient(90deg, #ace09c, #9CE0CA);
-webkit-background-clip: text;
color: transparent;
Focus ring
Focused control
outline: 2px solid #ace09c;
outline-offset: 3px;
Underline & caret

Marked up text

text-decoration-color: #ace09c;
caret-color: #ace09c;
Left rule
Pull quote or callout
border-left: 4px solid #ace09c;
Ring + tint
Selected chip
background: #EFF9EC;
box-shadow: inset 0 0 0 2px #ace09c;
Conic badge
68%
background: conic-gradient(#ace09c 68%, #e2e8f0 0);

Transparency

What each alpha value actually composites to. The top row is #ace09c 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, 224, 156, 0.5)
rgb(172 224 156 / 50%)
#ace09c80
hsl(106 52% 75% / 50%)
color-mix(in srgb, #ace09c 50%, transparent)
Alpha8-digit hexFlat on white
10%#ace09c1a#F7FCF5
20%#ace09c33#EEF9EB
40%#ace09c66#DEF3D7
60%#ace09c99#CDECC4
80%#ace09ccc#BDE6B0

Gradients from #ace09c

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, #D3EFCB, #ace09c 45%, #2E611E);
Duotone
A short hue run reads richer than a flat fill
background: linear-gradient(120deg, #ace09c, #85D9B0);
Complement sweep
Loud — keep it behind large type only
background: linear-gradient(90deg, #ace09c, #D09CE0);
Spotlight
Hero panels and app headers
background: radial-gradient(120% 120% at 20% 0%, #E7F6E2 0%, #ace09c 45%, #2E611E 100%);
Soft wash
Section backgrounds that stay readable
background: linear-gradient(180deg, #F6FAF4, #ffffff);
Mesh
Ambient background, no image weight
background: radial-gradient(60% 60% at 15% 20%, #E5ECC3 0%, transparent 60%), radial-gradient(55% 55% at 85% 15%, #B3E7C5 0%, transparent 60%), radial-gradient(70% 70% at 50% 95%, #2E611E 0%, transparent 65%), #ace09c;

Monochromatic scale

Palettes built from #ace09c

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.

#ace09c 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

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 13.90:1.

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.

#ace09c, answered

What color is #ace09c?

#ace09c is a light vivid green, closest to Light Green (ΔE2000 6.4). It sits at 106° on the hue wheel with 52% saturation and 75% lightness, which reads as neutral.

What is the RGB value of #ace09c?

rgb(172, 224, 156) — 172 red, 224 green and 156 blue out of 255, or 67.5% / 87.8% / 61.2% by channel.

What is #ace09c in HSL and HSV?

hsl(106, 52%, 75%) and hsv(106, 30%, 88%). HSL is what CSS takes; HSV is what your design tool's picker shows, which is why the saturation numbers rarely match.

Is #ace09c a light or a dark color?

It is a light color. Relative luminance is 0.6448 and perceived brightness is 79%, so black text on it reaches 13.90:1.

Should I use black or white text on #ace09c?

Black. It scores 13.90:1 against #ace09c, versus 1.51:1 for white — AAA at any size.

Is #ace09c accessible on a white background?

#ace09c on white scores 1.51:1, which fails WCAG AA at every size. Darken it to #40862A to reach 4.5:1, or #2F631F for 7:1.

What is the complementary color of #ace09c?

#D09CE0 sits directly opposite on the wheel. Softer options are the split-complements #AE9CE0 and #E09CCE, which give the same contrast with far less vibration.

What colors go well with #ace09c?

For interface work: #F6FAF4 as the surface, #CBECC1 for borders, #5D9B4B for secondary text, #682CA0 as an accent and #2E611E for hover and pressed states. For a palette, the analogous pair #CEE09C and #9CE0AE stays calm, while #D09CE0 is the loudest partner.

What is #ace09c in CMYK for printing?

cmyk(23%, 0%, 30%, 12%). This is a screen-to-ink approximation — ask your printer for a proof before committing to a run.

Is #ace09c warm or cool?

Neutral — it scores 57 on a scale where 0 is the warmest orange and 100 the coolest azure. Nudged warmer it becomes #C5E09C; nudged cooler, #9BE1A4.

Which Tailwind color is closest to #ace09c?

The green family — its 500 step is #22c55e, ΔE2000 14.4 away. That is a visible difference, so define #ace09c as a custom token rather than reaching for the built-in.

How do I use #ace09c in Tailwind CSS?

Inline it as an arbitrary value with bg-[#ace09c] or text-[#ace09c], 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 #ace09c with 50% opacity?

rgba(172, 224, 156, 0.5), or #ace09c80 in eight-digit hex. Over white that composites to #D6F0CE; over black, #56704E.

Is #ace09c a web-safe color?

No. The nearest web-safe colour is #99CC99, ΔE2000 5.9 away. The palette only matters for legacy displays and some email clients now.

What does the color #ace09c 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 #ace09c?

The safest is same-hue elevation: linear-gradient(135deg, #D3EFCB, #ace09c 45%, #2E611E). For more colour, a short hue run to #85D9B0 keeps it rich without turning muddy.

Work with #ace09c in the Color Lab

Every tool opens with this colour already loaded.

Every value on this page is computed from #ace09c at request time — conversions, contrast ratios and ΔE distances are calculated, never looked up.