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green · neutral

#ace090

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

Token name suggestion: Morning Fern

RGB
172, 224, 144
HSL
99°, 56%, 72%
CMYK
23, 0, 36, 12
Luminance
0.6410

#ace090 is a light vivid green, 99° on the wheel and 54/100 on the cool side. Put black text on it (13.82:1). As text it scores 1.52:1 on white — use #468425 instead. Nearest name is Light Green, nearest Tailwind family is lime.

hsl(99 56% 72%)rgb(172 224 144)Base step 400AAA inkNeutral

At a glance

Every number on this page in one read: what #ace090 is made of, how bright it looks, and which way it leans.

Hex
#ace090
Hue
99°
green
Saturation
56%
vivid
Lightness
72%
light
Brightness
88%
HSV value
Perceived
79%
weighted brightness
Luminance
0.6410
WCAG relative
Temperature
Neutral
54/100 cool
Color family
Green
Tone
Vivid
Best ink
Black
13.82:1
Closest name
Light Green
ΔE2000 5.8
Chroma
45.9
LCH, 0–130ish
OKLCH L
0.851
perceptual lightness
Tailwind
lime
500 · ΔE 12.7
Web-safe
#99CC99
nearest of 216
Where it sits
Hue99° of 360°
Saturation56%
Lightness72%
Saturation × lightness field

Left edge is grey, right edge is full chroma; top is white, bottom is black. The dot is #ace090.

Temperature
Warm ← → Cool54% 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%
Blue3%

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

Every format

HEX#ace090
HEX (8-digit)#ace090ff
RGBrgb(172, 224, 144)
RGBArgba(172, 224, 144, 1)
HSLhsl(99, 56%, 72%)
HSV / HSBhsv(99, 36%, 88%)
HWBhwb(99 56% 12%)
CMYKcmyk(23%, 0%, 36%, 12%)
LABlab(84.0 -31.0 33.9)
LCHlch(84.0 45.9 132.4)
OKLCHoklch(0.851 0.119 135.1)
XYZ (D65)xyz(48.70, 64.09, 36.19)
Decimal11329680
Display P3color(display-p3 0.675 0.878 0.565)
Web-safe#99CC99

Copy-ready code

every platformclick to select
/* CSS */
color: #ace090;
background-color: #ace090;
/* CSS custom property */
--brand: #ace090;
/* Tailwind (arbitrary) */
class="text-[#ace090] bg-[#ace090]"
/* SCSS */
$brand: #ace090;
/* SwiftUI */
Color(red: 0.675, green: 0.878, blue: 0.565)
/* UIKit */
UIColor(red: 0.675, green: 0.878, blue: 0.565, alpha: 1)
/* Android XML */
<color name="brand">#ACE090</color>
/* Android Compose */
Color(0xFFACE090)
/* Flutter */
Color(0xFFACE090)
/* Python / OpenCV (BGR) */
(144, 224, 172)
/* Python / PIL (RGB) */
(172, 224, 144)
/* Java AWT */
new Color(172, 224, 144)
/* .NET */
Color.FromArgb(255, 172, 224, 144)
/* OpenGL / Unity (0–1) */
(0.6745f, 0.8784f, 0.5647f, 1f)
/* LaTeX */
\definecolor{brand}{RGB}{172,224,144}
modern cssclick to select
/* mix without leaving CSS */
background: color-mix(in oklab, #ace090 85%, white);
border-color: color-mix(in oklab, #ace090 40%, transparent);
/* theme-aware in one line */
color: light-dark(#35641C, #DCEED3);
/* relative colour syntax */
--hover: hsl(from #ace090 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: #F6FBF4;
  --brand-100: #EEF6E9;
  --brand-200: #D9EECD;
  --brand-300: #BDE6A7;
  --brand-400: #ace090;
  --brand-500: #7CCE50;
  --brand-600: #66BF35;
  --brand-700: #559F2D;
  --brand-800: #448024;
  --brand-900: #345D1E;
  --brand-950: #203A12;
  --brand: #ace090;
  --brand-ink: #000000;
  --brand-surface: #F6FAF4;
  --brand-border: #CFEDC0;
  --brand-hover: #97D874;
  --brand-pressed: #82D058;
}
@media (prefers-color-scheme: dark) {
  :root {
    --brand-surface: #1A2414;
    --brand-ink: #DCEED3;
  }
}
tailwind.config.jsclick to select
theme: {
  extend: {
    colors: {
      brand: {
        50: '#F6FBF4',
        100: '#EEF6E9',
        200: '#D9EECD',
        300: '#BDE6A7',
        400: '#ace090',
        500: '#7CCE50',
        600: '#66BF35',
        700: '#559F2D',
        800: '#448024',
        900: '#345D1E',
        950: '#203A12',
        DEFAULT: '#ace090',
      },
    },
  },
}
scss mapclick to select
$brand: (
  '50': #F6FBF4,
  '100': #EEF6E9,
  '200': #D9EECD,
  '300': #BDE6A7,
  '400': #ace090,
  '500': #7CCE50,
  '600': #66BF35,
  '700': #559F2D,
  '800': #448024,
  '900': #345D1E,
  '950': #203A12,
);
$brand-base: #ace090;
$brand-ink: #000000;

@function brand($step) { @return map-get($brand, $step); }
w3c design tokens (json)click to select
{
  "color": {
    "brand": {
      "50": { "$value": "#F6FBF4", "$type": "color" },
      "100": { "$value": "#EEF6E9", "$type": "color" },
      "200": { "$value": "#D9EECD", "$type": "color" },
      "300": { "$value": "#BDE6A7", "$type": "color" },
      "400": { "$value": "#ace090", "$type": "color" },
      "500": { "$value": "#7CCE50", "$type": "color" },
      "600": { "$value": "#66BF35", "$type": "color" },
      "700": { "$value": "#559F2D", "$type": "color" },
      "800": { "$value": "#448024", "$type": "color" },
      "900": { "$value": "#345D1E", "$type": "color" },
      "950": { "$value": "#203A12", "$type": "color" }
    },
    "brandInk": { "$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 #ace090 · 13.82:1
Use #000000AAA at every size.
Aa
12px
Aa
16px
Aa
24px
Aa
White text · 1.52:1
AA fail · AA large fail · AAA fail
Aa
Black text · 13.82:1 · recommended
AA pass · AA large pass · AAA pass
Reading the other direction: #ace090 as text scores 1.52:1 on white and 13.82:1 on black.
Best tinted ink on it, if plain black or white feels flat: #35641C at 4.62:1.

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
#468425 · 4.58:1
AA on white−39% L
#468425
The quick fox
#35641C · 7.02:1
AAA on white−47% L
#35641C
The quick fox
#ace090 · 13.82:1
AA on blackalready passes
#ace090
The quick fox
#ace090 · 13.82:1
AAA on blackalready passes
#ace090

Large text — 24px regular or 18.66px bold and above — only needs 3:1, so #57A42E 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
#ace090 on white: 1.52:1
AA ✗ fail · AA-large · AAA
Aa
#ace090 on black: 13.82:1
AA ✓ pass · AA-large · AAA
Against the neutral ladder

Contrast is symmetric, so each row covers both directions: #ace090 as text on that neutral, and that neutral as text on #ace090.

NeutralRatioBoth directions
White1.52:1AaAa
Slate 501.45:1AaAa
Slate 1001.39:1AaAa
Slate 2001.23:1AaAa
Slate 3001.02:1AaAa
Slate 4001.69:1AaAa
Slate 5003.13:1AaAa
Slate 6004.99:1AaAa
Slate 7006.81:1AaAa
Slate 8009.63:1AaAa
Slate 90011.75:1AaAa
Black13.82:1AaAa
Colour vision deficiency
true color
protanopia · #E6D48A
deuteranopia · #DED094
tritanopia · #ACDACC

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. #ace090 is pinned to step 400; the rest hold its hue and let saturation ease off at the extremes so the pale end never turns neon.

#F6FBF4
#EEF6E9
#D9EECD
#BDE6A7
#ace090
#7CCE50
#66BF35
#559F2D
#448024
#345D1E
#203A12
Base = 400Lightest = 50 · #F6FBF4Darkest = 950 · #203A12Text 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 0.030 135.1);
  --brand-100: oklch(0.94 0.048 135.1);
  --brand-200: oklch(0.88 0.072 135.1);
  --brand-300: oklch(0.80 0.093 135.1);
  --brand-400: oklch(0.72 0.110 135.1);
  --brand-500: oklch(0.64 0.119 135.1);
  --brand-600: oklch(0.56 0.119 135.1);
  --brand-700: oklch(0.48 0.112 135.1);
  --brand-800: oklch(0.40 0.100 135.1);
  --brand-900: oklch(0.32 0.084 135.1);
  --brand-950: oklch(0.24 0.066 135.1);
}

Colors that work with #ace090

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#CFEDC0
Hairlines and dividers
Muted text#679B4B
Captions on the surface
Accent#5A28A4
Second voice, not a rival
Dark variant#35641C
Hover, pressed, headers
Light variant#F0F9EB
Selected rows, tints
Dark surface#1A2414
Dark-mode background
Hover#97D874
One step down in lightness
Pressed#82D058
Two steps down
Disabled#EFF3ED
Chroma pulled out
Focus ring#B6EB9A
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 #ace090

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 #35641C
Safe as a 1px border on white
No — use #57A42E

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
  • Weight28/100
  • 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#C490E0
Analogous left#D4E090
Analogous right#90E09C
Split-complement 1#9C90E0
Split-complement 2#E090D4
Triadic 1#90ACE0
Triadic 2#E090AC
Tetradic#90D4E0
On the wheel
Base+30°−30°+120°+240°+180°99°

#ace090 sits at 99°. Every dot is a harmony position and links to its own page in the table alongside.

RGB percentages

Red67.5%
Green87.8%
Blue56.5%
R · 0–255
172
0xac
G · 0–255
224
0xe0
B · 0–255
144
0x90

CMYK percentages

Cyan23.2%
Magenta0.0%
Yellow35.7%
Key (black)12.2%

Total ink coverage is 71%. Most commercial presses cap around 300% — above that, sheets stop drying properly.

Color previews

#ace090 text on a black background

contrast 13.82:1

Card sample

#ace090 text on a white background

contrast 1.52:1

Card sample

#ace090 on grey

1.39:1

#ace090 on its own surface

1.44:1

#ace090 on its dark surface

10.58:1

CSS3 live lab

Text font color

The quick brown fox

color: #ace090;
Background color
Panel with #ace090 background
background-color: #ace090;
Text shadow — hex

Glowing headline

text-shadow: 2px 2px 8px #ace090;
Text shadow — RGB

Soft neon halo

text-shadow: 0 0 14px rgba(172, 224, 144, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(172, 224, 144, 0.45);
Border & gradient
Gradient panel
border: 3px solid #ace090;
background: linear-gradient(135deg, #ace090, #90E0A9);
Gradient text

Gradient headline

background: linear-gradient(90deg, #ace090, #90E0BD);
-webkit-background-clip: text;
color: transparent;
Focus ring
Focused control
outline: 2px solid #ace090;
outline-offset: 3px;
Underline & caret

Marked up text

text-decoration-color: #ace090;
caret-color: #ace090;
Left rule
Pull quote or callout
border-left: 4px solid #ace090;
Ring + tint
Selected chip
background: #F0F9EB;
box-shadow: inset 0 0 0 2px #ace090;
Conic badge
68%
background: conic-gradient(#ace090 68%, #e2e8f0 0);

Transparency

What each alpha value actually composites to. The top row is #ace090 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, 144, 0.5)
rgb(172 224 144 / 50%)
#ace09080
hsl(99 56% 72% / 50%)
color-mix(in srgb, #ace090 50%, transparent)
Alpha8-digit hexFlat on white
10%#ace0901a#F7FCF4
20%#ace09033#EEF9E9
40%#ace09066#DEF3D3
60%#ace09099#CDECBC
80%#ace090cc#BDE6A6

Gradients from #ace090

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, #D0EDC0, #ace090 45%, #35641C);
Duotone
A short hue run reads richer than a flat fill
background: linear-gradient(120deg, #ace090, #78D99F);
Complement sweep
Loud — keep it behind large type only
background: linear-gradient(90deg, #ace090, #C490E0);
Spotlight
Hero panels and app headers
background: radial-gradient(120% 120% at 20% 0%, #E2F4D8 0%, #ace090 45%, #35641C 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%, #E8EBB8 0%, transparent 60%), radial-gradient(55% 55% at 85% 15%, #A8E7B7 0%, transparent 60%), radial-gradient(70% 70% at 50% 95%, #35641C 0%, transparent 65%), #ace090;

Monochromatic scale

Palettes built from #ace090

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.

#ace090 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 13.82:1.

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.

#ace090, answered

What color is #ace090?

#ace090 is a light vivid green, closest to Light Green (ΔE2000 5.8). It sits at 99° on the hue wheel with 56% saturation and 72% lightness, which reads as neutral.

What is the RGB value of #ace090?

rgb(172, 224, 144) — 172 red, 224 green and 144 blue out of 255, or 67.5% / 87.8% / 56.5% by channel.

What is #ace090 in HSL and HSV?

hsl(99, 56%, 72%) and hsv(99, 36%, 88%). HSL is what CSS takes; HSV is what your design tool's picker shows, which is why the saturation numbers rarely match.

Is #ace090 a light or a dark color?

It is a light color. Relative luminance is 0.6410 and perceived brightness is 79%, so black text on it reaches 13.82:1.

Should I use black or white text on #ace090?

Black. It scores 13.82:1 against #ace090, versus 1.52:1 for white — AAA at any size.

Is #ace090 accessible on a white background?

#ace090 on white scores 1.52:1, which fails WCAG AA at every size. Darken it to #468425 to reach 4.5:1, or #35641C for 7:1.

What is the complementary color of #ace090?

#C490E0 sits directly opposite on the wheel. Softer options are the split-complements #9C90E0 and #E090D4, which give the same contrast with far less vibration.

What colors go well with #ace090?

For interface work: #F6FAF4 as the surface, #CFEDC0 for borders, #679B4B for secondary text, #5A28A4 as an accent and #35641C for hover and pressed states. For a palette, the analogous pair #D4E090 and #90E09C stays calm, while #C490E0 is the loudest partner.

What is #ace090 in CMYK for printing?

cmyk(23%, 0%, 36%, 12%). This is a screen-to-ink approximation — ask your printer for a proof before committing to a run.

Is #ace090 warm or cool?

Neutral — it scores 54 on a scale where 0 is the warmest orange and 100 the coolest azure. Nudged warmer it becomes #C9E090; nudged cooler, #8FE190.

Which Tailwind color is closest to #ace090?

The lime family — its 500 step is #84cc16, ΔE2000 12.7 away. That is a visible difference, so define #ace090 as a custom token rather than reaching for the built-in.

How do I use #ace090 in Tailwind CSS?

Inline it as an arbitrary value with bg-[#ace090] or text-[#ace090], 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 #ace090 with 50% opacity?

rgba(172, 224, 144, 0.5), or #ace09080 in eight-digit hex. Over white that composites to #D6F0C8; over black, #567048.

Is #ace090 a web-safe color?

No. The nearest web-safe colour is #99CC99, ΔE2000 7.5 away. The palette only matters for legacy displays and some email clients now.

What does the color #ace090 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 #ace090?

The safest is same-hue elevation: linear-gradient(135deg, #D0EDC0, #ace090 45%, #35641C). For more colour, a short hue run to #78D99F keeps it rich without turning muddy.

Work with #ace090 in the Color Lab

Every tool opens with this colour already loaded.

Every value on this page is computed from #ace090 at request time — conversions, contrast ratios and ΔE distances are calculated, never looked up.