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green · cool

#ace9ca

a light, vivid green · cool · closest name: Aqua Marine

Token name suggestion: Drift Moss

RGB
172, 233, 202
HSL
150°, 58%, 79%
CMYK
26, 0, 13, 9
Luminance
0.7131

#ace9ca is a light vivid green, 150° on the wheel and 75/100 on the cool side. Put black text on it (15.26:1). As text it scores 1.38:1 on white — use #248754 instead. Nearest name is Aqua Marine, nearest Tailwind family is teal.

hsl(150 58% 79%)rgb(172 233 202)Base step 300AAA inkCool

At a glance

Every number on this page in one read: what #ace9ca is made of, how bright it looks, and which way it leans.

Hex
#ace9ca
Hue
150°
green
Saturation
58%
vivid
Lightness
79%
light
Brightness
91%
HSV value
Perceived
84%
weighted brightness
Luminance
0.7131
WCAG relative
Temperature
Cool
75/100 cool
Color family
Green
Tone
Vivid
Best ink
Black
15.26:1
Closest name
Aqua Marine
ΔE2000 8.3
Chroma
27.0
LCH, 0–130ish
OKLCH L
0.884
perceptual lightness
Tailwind
teal
500 · ΔE 17.5
Web-safe
#99FFCC
nearest of 216
Where it sits
Hue150° of 360°
Saturation58%
Lightness79%
Saturation × lightness field

Left edge is grey, right edge is full chroma; top is white, bottom is black. The dot is #ace9ca.

Temperature
Warm ← → Cool75% cool

Reads cool. Warm and cool siblings keep the same lightness, so you can swap one in without redoing your contrast maths.

Luminance by channel
Red12%
Green82%
Blue6%

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

Every format

HEX#ace9ca
HEX (8-digit)#ace9caff
RGBrgb(172, 233, 202)
RGBArgba(172, 233, 202, 1)
HSLhsl(150, 58%, 79%)
HSV / HSBhsv(150, 26%, 91%)
HWBhwb(150 67% 9%)
CMYKcmyk(26%, 0%, 13%, 9%)
LABlab(87.6 -25.5 8.9)
LCHlch(87.6 27.0 160.8)
OKLCHoklch(0.884 0.075 162.3)
XYZ (D65)xyz(56.81, 71.31, 66.64)
Decimal11332042
Display P3color(display-p3 0.675 0.914 0.792)
Web-safe#99FFCC

Copy-ready code

every platformclick to select
/* CSS */
color: #ace9ca;
background-color: #ace9ca;
/* CSS custom property */
--brand: #ace9ca;
/* Tailwind (arbitrary) */
class="text-[#ace9ca] bg-[#ace9ca]"
/* SCSS */
$brand: #ace9ca;
/* SwiftUI */
Color(red: 0.675, green: 0.914, blue: 0.792)
/* UIKit */
UIColor(red: 0.675, green: 0.914, blue: 0.792, alpha: 1)
/* Android XML */
<color name="brand">#ACE9CA</color>
/* Android Compose */
Color(0xFFACE9CA)
/* Flutter */
Color(0xFFACE9CA)
/* Python / OpenCV (BGR) */
(202, 233, 172)
/* Python / PIL (RGB) */
(172, 233, 202)
/* Java AWT */
new Color(172, 233, 202)
/* .NET */
Color.FromArgb(255, 172, 233, 202)
/* OpenGL / Unity (0–1) */
(0.6745f, 0.9137f, 0.7922f, 1f)
/* LaTeX */
\definecolor{brand}{RGB}{172,233,202}
modern cssclick to select
/* mix without leaving CSS */
background: color-mix(in oklab, #ace9ca 85%, white);
border-color: color-mix(in oklab, #ace9ca 40%, transparent);
/* theme-aware in one line */
color: light-dark(#1B653F, #D3EEE0);
/* relative colour syntax */
--hover: hsl(from #ace9ca 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: #F4FBF7;
  --brand-100: #E9F7F0;
  --brand-200: #CDEFDE;
  --brand-300: #ace9ca;
  --brand-400: #7ADCAA;
  --brand-500: #4ED08E;
  --brand-600: #33C279;
  --brand-700: #2BA165;
  --brand-800: #228151;
  --brand-900: #1C5E3D;
  --brand-950: #123B26;
  --brand: #ace9ca;
  --brand-ink: #000000;
  --brand-surface: #F4FAF7;
  --brand-border: #C0EDD6;
  --brand-hover: #90E2B8;
  --brand-pressed: #74DAA6;
}
@media (prefers-color-scheme: dark) {
  :root {
    --brand-surface: #14241C;
    --brand-ink: #D3EEE0;
  }
}
tailwind.config.jsclick to select
theme: {
  extend: {
    colors: {
      brand: {
        50: '#F4FBF7',
        100: '#E9F7F0',
        200: '#CDEFDE',
        300: '#ace9ca',
        400: '#7ADCAA',
        500: '#4ED08E',
        600: '#33C279',
        700: '#2BA165',
        800: '#228151',
        900: '#1C5E3D',
        950: '#123B26',
        DEFAULT: '#ace9ca',
      },
    },
  },
}
scss mapclick to select
$brand: (
  '50': #F4FBF7,
  '100': #E9F7F0,
  '200': #CDEFDE,
  '300': #ace9ca,
  '400': #7ADCAA,
  '500': #4ED08E,
  '600': #33C279,
  '700': #2BA165,
  '800': #228151,
  '900': #1C5E3D,
  '950': #123B26,
);
$brand-base: #ace9ca;
$brand-ink: #000000;

@function brand($step) { @return map-get($brand, $step); }
w3c design tokens (json)click to select
{
  "color": {
    "brand": {
      "50": { "$value": "#F4FBF7", "$type": "color" },
      "100": { "$value": "#E9F7F0", "$type": "color" },
      "200": { "$value": "#CDEFDE", "$type": "color" },
      "300": { "$value": "#ace9ca", "$type": "color" },
      "400": { "$value": "#7ADCAA", "$type": "color" },
      "500": { "$value": "#4ED08E", "$type": "color" },
      "600": { "$value": "#33C279", "$type": "color" },
      "700": { "$value": "#2BA165", "$type": "color" },
      "800": { "$value": "#228151", "$type": "color" },
      "900": { "$value": "#1C5E3D", "$type": "color" },
      "950": { "$value": "#123B26", "$type": "color" }
    },
    "brandInk": { "$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 #ace9ca · 15.26:1
Use #000000AAA at every size.
Aa
12px
Aa
16px
Aa
24px
Aa
White text · 1.38:1
AA fail · AA large fail · AAA fail
Aa
Black text · 15.26:1 · recommended
AA pass · AA large pass · AAA pass
Reading the other direction: #ace9ca as text scores 1.38:1 on white and 15.26:1 on black.
Best tinted ink on it, if plain black or white feels flat: #1B653F at 5.12:1.

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
#248754 · 4.50:1
AA on white−46% L
#248754
The quick fox
#1A623E · 7.34:1
AAA on white−55% L
#1A623E
The quick fox
#ace9ca · 15.26:1
AA on blackalready passes
#ace9ca
The quick fox
#ace9ca · 15.26:1
AAA on blackalready passes
#ace9ca

Large text — 24px regular or 18.66px bold and above — only needs 3:1, so #2CA769 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
#ace9ca on white: 1.38:1
AA ✗ fail · AA-large · AAA
Aa
#ace9ca on black: 15.26:1
AA ✓ pass · AA-large · AAA
Against the neutral ladder

Contrast is symmetric, so each row covers both directions: #ace9ca as text on that neutral, and that neutral as text on #ace9ca.

NeutralRatioBoth directions
White1.38:1AaAa
Slate 501.32:1AaAa
Slate 1001.26:1AaAa
Slate 2001.12:1AaAa
Slate 3001.08:1AaAa
Slate 4001.86:1AaAa
Slate 5003.46:1AaAa
Slate 6005.51:1AaAa
Slate 7007.53:1AaAa
Slate 80010.63:1AaAa
Slate 90012.98:1AaAa
Black15.26:1AaAa
Colour vision deficiency
true color
protanopia · #E7E0C8
deuteranopia · #DCD9CC
tritanopia · #A0E9E0

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. #ace9ca 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.

#F4FBF7
#E9F7F0
#CDEFDE
#ace9ca
#7ADCAA
#4ED08E
#33C279
#2BA165
#228151
#1C5E3D
#123B26
Base = 300Lightest = 50 · #F4FBF7Darkest = 950 · #123B26Text 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 0.019 162.3);
  --brand-100: oklch(0.94 0.030 162.3);
  --brand-200: oklch(0.88 0.045 162.3);
  --brand-300: oklch(0.80 0.059 162.3);
  --brand-400: oklch(0.72 0.069 162.3);
  --brand-500: oklch(0.64 0.075 162.3);
  --brand-600: oklch(0.56 0.075 162.3);
  --brand-700: oklch(0.48 0.071 162.3);
  --brand-800: oklch(0.40 0.063 162.3);
  --brand-900: oklch(0.32 0.053 162.3);
  --brand-950: oklch(0.24 0.041 162.3);
}

Colors that work with #ace9ca

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#F4FAF7
Tinted page background
Border#C0EDD6
Hairlines and dividers
Muted text#4B9B72
Captions on the surface
Accent#A52786
Second voice, not a rival
Dark variant#1B653F
Hover, pressed, headers
Light variant#EBFAF2
Selected rows, tints
Dark surface#14241C
Dark-mode background
Hover#90E2B8
One step down in lightness
Pressed#74DAA6
Two steps down
Disabled#F3F7F5
Chroma pulled out
Focus ring#B8F1D4
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 #ace9ca

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 #1B653F
Safe as a 1px border on white
No — use #2CA769

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
  • Weight21/100
  • TemperatureCool
  • ApproachabilityReserved

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#E9ACCB
Analogous left#ACE9AC
Analogous right#ACE9E8
Split-complement 1#E8ACE9
Split-complement 2#E9ACAC
Triadic 1#CAACE9
Triadic 2#E9CAAC
Tetradic#ACACE9
On the wheel
Base+30°−30°+120°+240°+180°150°

#ace9ca sits at 150°. Every dot is a harmony position and links to its own page in the table alongside.

RGB percentages

Red67.5%
Green91.4%
Blue79.2%
R · 0–255
172
0xac
G · 0–255
233
0xe9
B · 0–255
202
0xca

CMYK percentages

Cyan26.2%
Magenta0.0%
Yellow13.3%
Key (black)8.6%

Total ink coverage is 48%. Most commercial presses cap around 300% — above that, sheets stop drying properly.

Color previews

#ace9ca text on a black background

contrast 15.26:1

Card sample

#ace9ca text on a white background

contrast 1.38:1

Card sample

#ace9ca on grey

1.26:1

#ace9ca on its own surface

1.30:1

#ace9ca on its dark surface

11.75:1

CSS3 live lab

Text font color

The quick brown fox

color: #ace9ca;
Background color
Panel with #ace9ca background
background-color: #ace9ca;
Text shadow — hex

Glowing headline

text-shadow: 2px 2px 8px #ace9ca;
Text shadow — RGB

Soft neon halo

text-shadow: 0 0 14px rgba(172, 233, 202, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(172, 233, 202, 0.45);
Border & gradient
Gradient panel
border: 3px solid #ace9ca;
background: linear-gradient(135deg, #ace9ca, #ACDFE9);
Gradient text

Gradient headline

background: linear-gradient(90deg, #ace9ca, #ACD0E9);
-webkit-background-clip: text;
color: transparent;
Focus ring
Focused control
outline: 2px solid #ace9ca;
outline-offset: 3px;
Underline & caret

Marked up text

text-decoration-color: #ace9ca;
caret-color: #ace9ca;
Left rule
Pull quote or callout
border-left: 4px solid #ace9ca;
Ring + tint
Selected chip
background: #EBFAF2;
box-shadow: inset 0 0 0 2px #ace9ca;
Conic badge
68%
background: conic-gradient(#ace9ca 68%, #e2e8f0 0);

Transparency

What each alpha value actually composites to. The top row is #ace9ca 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, 233, 202, 0.5)
rgb(172 233 202 / 50%)
#ace9ca80
hsl(150 58% 79% / 50%)
color-mix(in srgb, #ace9ca 50%, transparent)
Alpha8-digit hexFlat on white
10%#ace9ca1a#F7FDFA
20%#ace9ca33#EEFBF4
40%#ace9ca66#DEF6EA
60%#ace9ca99#CDF2DF
80%#ace9cacc#BDEDD5

Gradients from #ace9ca

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, #DCF6E9, #ace9ca 45%, #1B653F);
Duotone
A short hue run reads richer than a flat fill
background: linear-gradient(120deg, #ace9ca, #94D0E3);
Complement sweep
Loud — keep it behind large type only
background: linear-gradient(90deg, #ace9ca, #E9ACCB);
Spotlight
Hero panels and app headers
background: radial-gradient(120% 120% at 20% 0%, #F3FCF7 0%, #ace9ca 45%, #1B653F 100%);
Soft wash
Section backgrounds that stay readable
background: linear-gradient(180deg, #F4FAF7, #ffffff);
Mesh
Ambient background, no image weight
background: radial-gradient(60% 60% at 15% 20%, #D7F4D4 0%, transparent 60%), radial-gradient(55% 55% at 85% 15%, #C4ECEF 0%, transparent 60%), radial-gradient(70% 70% at 50% 95%, #1B653F 0%, transparent 65%), #ace9ca;

Monochromatic scale

Palettes built from #ace9ca

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.

#ace9ca 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 15.26:1.

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.

#ace9ca, answered

What color is #ace9ca?

#ace9ca is a light vivid green, closest to Aqua Marine (ΔE2000 8.3). It sits at 150° on the hue wheel with 58% saturation and 79% lightness, which reads as cool.

What is the RGB value of #ace9ca?

rgb(172, 233, 202) — 172 red, 233 green and 202 blue out of 255, or 67.5% / 91.4% / 79.2% by channel.

What is #ace9ca in HSL and HSV?

hsl(150, 58%, 79%) and hsv(150, 26%, 91%). HSL is what CSS takes; HSV is what your design tool's picker shows, which is why the saturation numbers rarely match.

Is #ace9ca a light or a dark color?

It is a light color. Relative luminance is 0.7131 and perceived brightness is 84%, so black text on it reaches 15.26:1.

Should I use black or white text on #ace9ca?

Black. It scores 15.26:1 against #ace9ca, versus 1.38:1 for white — AAA at any size.

Is #ace9ca accessible on a white background?

#ace9ca on white scores 1.38:1, which fails WCAG AA at every size. Darken it to #248754 to reach 4.5:1, or #1A623E for 7:1.

What is the complementary color of #ace9ca?

#E9ACCB sits directly opposite on the wheel. Softer options are the split-complements #E8ACE9 and #E9ACAC, which give the same contrast with far less vibration.

What colors go well with #ace9ca?

For interface work: #F4FAF7 as the surface, #C0EDD6 for borders, #4B9B72 for secondary text, #A52786 as an accent and #1B653F for hover and pressed states. For a palette, the analogous pair #ACE9AC and #ACE9E8 stays calm, while #E9ACCB is the loudest partner.

What is #ace9ca in CMYK for printing?

cmyk(26%, 0%, 13%, 9%). This is a screen-to-ink approximation — ask your printer for a proof before committing to a run.

Is #ace9ca warm or cool?

Cool — it scores 75 on a scale where 0 is the warmest orange and 100 the coolest azure. Nudged warmer it becomes #ACE9B4; nudged cooler, #ABEAE1.

Which Tailwind color is closest to #ace9ca?

The teal family — its 500 step is #14b8a6, ΔE2000 17.5 away. That is a visible difference, so define #ace9ca as a custom token rather than reaching for the built-in.

How do I use #ace9ca in Tailwind CSS?

Inline it as an arbitrary value with bg-[#ace9ca] or text-[#ace9ca], 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 #ace9ca with 50% opacity?

rgba(172, 233, 202, 0.5), or #ace9ca80 in eight-digit hex. Over white that composites to #D6F4E5; over black, #567565.

Is #ace9ca a web-safe color?

No. The nearest web-safe colour is #99FFCC, ΔE2000 7.2 away. The palette only matters for legacy displays and some email clients now.

What does the color #ace9ca 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 #ace9ca?

The safest is same-hue elevation: linear-gradient(135deg, #DCF6E9, #ace9ca 45%, #1B653F). For more colour, a short hue run to #94D0E3 keeps it rich without turning muddy.

Work with #ace9ca in the Color Lab

Every tool opens with this colour already loaded.

Every value on this page is computed from #ace9ca at request time — conversions, contrast ratios and ΔE distances are calculated, never looked up.