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cyan · cool

#ace8ed

a light, vivid cyan · cool · closest name: Pale Turquoise

Token name suggestion: Linen Lagoon

RGB
172, 232, 237
HSL
185°, 64%, 80%
CMYK
27, 2, 0, 7
Luminance
0.7260

#ace8ed is a light vivid cyan, 185° on the wheel and 89/100 on the cool side. Put black text on it (15.52:1). As text it scores 1.35:1 on white — use #1D7F87 instead. Nearest name is Pale Turquoise, nearest Tailwind family is cyan.

hsl(185 64% 80%)rgb(172 232 237)Base step 300AAA inkCool

At a glance

Every number on this page in one read: what #ace8ed is made of, how bright it looks, and which way it leans.

Hex
#ace8ed
Hue
185°
cyan
Saturation
64%
vivid
Lightness
80%
light
Brightness
93%
HSV value
Perceived
85%
weighted brightness
Luminance
0.7260
WCAG relative
Temperature
Cool
89/100 cool
Color family
Cyan
Tone
Vivid
Best ink
Black
15.52:1
Closest name
Pale Turquoise
ΔE2000 2.5
Chroma
19.7
LCH, 0–130ish
OKLCH L
0.892
perceptual lightness
Tailwind
cyan
500 · ΔE 17
Web-safe
#99FFFF
nearest of 216
Where it sits
Hue185° of 360°
Saturation64%
Lightness80%
Saturation × lightness field

Left edge is grey, right edge is full chroma; top is white, bottom is black. The dot is #ace8ed.

Temperature
Warm ← → Cool89% 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%
Green79%
Blue8%

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

Every format

HEX#ace8ed
HEX (8-digit)#ace8edff
RGBrgb(172, 232, 237)
RGBArgba(172, 232, 237, 1)
HSLhsl(185, 64%, 80%)
HSV / HSBhsv(185, 27%, 93%)
HWBhwb(185 67% 7%)
CMYKcmyk(27%, 2%, 0%, 7%)
LABlab(88.3 -17.7 -8.6)
LCHlch(88.3 19.7 205.8)
OKLCHoklch(0.892 0.061 202.6)
XYZ (D65)xyz(61.15, 72.60, 90.89)
Decimal11331821
Display P3color(display-p3 0.675 0.910 0.929)
Web-safe#99FFFF

Copy-ready code

every platformclick to select
/* CSS */
color: #ace8ed;
background-color: #ace8ed;
/* CSS custom property */
--brand: #ace8ed;
/* Tailwind (arbitrary) */
class="text-[#ace8ed] bg-[#ace8ed]"
/* SCSS */
$brand: #ace8ed;
/* SwiftUI */
Color(red: 0.675, green: 0.910, blue: 0.929)
/* UIKit */
UIColor(red: 0.675, green: 0.910, blue: 0.929, alpha: 1)
/* Android XML */
<color name="brand">#ACE8ED</color>
/* Android Compose */
Color(0xFFACE8ED)
/* Flutter */
Color(0xFFACE8ED)
/* Python / OpenCV (BGR) */
(237, 232, 172)
/* Python / PIL (RGB) */
(172, 232, 237)
/* Java AWT */
new Color(172, 232, 237)
/* .NET */
Color.FromArgb(255, 172, 232, 237)
/* OpenGL / Unity (0–1) */
(0.6745f, 0.9098f, 0.9294f, 1f)
/* LaTeX */
\definecolor{brand}{RGB}{172,232,237}
modern cssclick to select
/* mix without leaving CSS */
background: color-mix(in oklab, #ace8ed 85%, white);
border-color: color-mix(in oklab, #ace8ed 40%, transparent);
/* theme-aware in one line */
color: light-dark(#176369, #D3ECEE);
/* relative colour syntax */
--hover: hsl(from #ace8ed 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: #F4FBFB;
  --brand-100: #E8F6F7;
  --brand-200: #CBEEF1;
  --brand-300: #ace8ed;
  --brand-400: #75D9E1;
  --brand-500: #47CCD7;
  --brand-600: #2CBDC9;
  --brand-700: #249EA8;
  --brand-800: #1D7E86;
  --brand-900: #195C61;
  --brand-950: #10393D;
  --brand: #ace8ed;
  --brand-ink: #000000;
  --brand-surface: #F4FAFA;
  --brand-border: #C0E9ED;
  --brand-hover: #8FE0E7;
  --brand-pressed: #71D8E0;
}
@media (prefers-color-scheme: dark) {
  :root {
    --brand-surface: #142324;
    --brand-ink: #D3ECEE;
  }
}
tailwind.config.jsclick to select
theme: {
  extend: {
    colors: {
      brand: {
        50: '#F4FBFB',
        100: '#E8F6F7',
        200: '#CBEEF1',
        300: '#ace8ed',
        400: '#75D9E1',
        500: '#47CCD7',
        600: '#2CBDC9',
        700: '#249EA8',
        800: '#1D7E86',
        900: '#195C61',
        950: '#10393D',
        DEFAULT: '#ace8ed',
      },
    },
  },
}
scss mapclick to select
$brand: (
  '50': #F4FBFB,
  '100': #E8F6F7,
  '200': #CBEEF1,
  '300': #ace8ed,
  '400': #75D9E1,
  '500': #47CCD7,
  '600': #2CBDC9,
  '700': #249EA8,
  '800': #1D7E86,
  '900': #195C61,
  '950': #10393D,
);
$brand-base: #ace8ed;
$brand-ink: #000000;

@function brand($step) { @return map-get($brand, $step); }
w3c design tokens (json)click to select
{
  "color": {
    "brand": {
      "50": { "$value": "#F4FBFB", "$type": "color" },
      "100": { "$value": "#E8F6F7", "$type": "color" },
      "200": { "$value": "#CBEEF1", "$type": "color" },
      "300": { "$value": "#ace8ed", "$type": "color" },
      "400": { "$value": "#75D9E1", "$type": "color" },
      "500": { "$value": "#47CCD7", "$type": "color" },
      "600": { "$value": "#2CBDC9", "$type": "color" },
      "700": { "$value": "#249EA8", "$type": "color" },
      "800": { "$value": "#1D7E86", "$type": "color" },
      "900": { "$value": "#195C61", "$type": "color" },
      "950": { "$value": "#10393D", "$type": "color" }
    },
    "brandInk": { "$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 #ace8ed · 15.52:1
Use #000000AAA at every size.
Aa
12px
Aa
16px
Aa
24px
Aa
White text · 1.35:1
AA fail · AA large fail · AAA fail
Aa
Black text · 15.52:1 · recommended
AA pass · AA large pass · AAA pass
Reading the other direction: #ace8ed as text scores 1.35:1 on white and 15.52:1 on black.
Best tinted ink on it, if plain black or white feels flat: #176369 at 5.13:1.

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
#1D7F87 · 4.73:1
AA on white−48% L
#1D7F87
The quick fox
#165F65 · 7.35:1
AAA on white−56% L
#165F65
The quick fox
#ace8ed · 15.52:1
AA on blackalready passes
#ace8ed
The quick fox
#ace8ed · 15.52:1
AAA on blackalready passes
#ace8ed

Large text — 24px regular or 18.66px bold and above — only needs 3:1, so #25A2AD 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
#ace8ed on white: 1.35:1
AA ✗ fail · AA-large · AAA
Aa
#ace8ed on black: 15.52:1
AA ✓ pass · AA-large · AAA
Against the neutral ladder

Contrast is symmetric, so each row covers both directions: #ace8ed as text on that neutral, and that neutral as text on #ace8ed.

NeutralRatioBoth directions
White1.35:1AaAa
Slate 501.29:1AaAa
Slate 1001.24:1AaAa
Slate 2001.10:1AaAa
Slate 3001.10:1AaAa
Slate 4001.89:1AaAa
Slate 5003.52:1AaAa
Slate 6005.60:1AaAa
Slate 7007.65:1AaAa
Slate 80010.81:1AaAa
Slate 90013.19:1AaAa
Black15.52:1AaAa
Colour vision deficiency
true color
protanopia · #DFE3ED
deuteranopia · #D3DAED
tritanopia · #96EDE9

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. #ace8ed 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.

#F4FBFB
#E8F6F7
#CBEEF1
#ace8ed
#75D9E1
#47CCD7
#2CBDC9
#249EA8
#1D7E86
#195C61
#10393D
Base = 300Lightest = 50 · #F4FBFBDarkest = 950 · #10393DText 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 0.015 202.6);
  --brand-100: oklch(0.94 0.024 202.6);
  --brand-200: oklch(0.88 0.037 202.6);
  --brand-300: oklch(0.80 0.048 202.6);
  --brand-400: oklch(0.72 0.056 202.6);
  --brand-500: oklch(0.64 0.061 202.6);
  --brand-600: oklch(0.56 0.061 202.6);
  --brand-700: oklch(0.48 0.057 202.6);
  --brand-800: oklch(0.40 0.051 202.6);
  --brand-900: oklch(0.32 0.043 202.6);
  --brand-950: oklch(0.24 0.034 202.6);
}

Colors that work with #ace8ed

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#F4FAFA
Tinted page background
Border#C0E9ED
Hairlines and dividers
Muted text#4B959B
Captions on the surface
Accent#AC2038
Second voice, not a rival
Dark variant#176369
Hover, pressed, headers
Light variant#EAF9FA
Selected rows, tints
Dark surface#142324
Dark-mode background
Hover#8FE0E7
One step down in lightness
Pressed#71D8E0
Two steps down
Disabled#F3F7F7
Chroma pulled out
Focus ring#B9F0F5
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 #ace8ed

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
  • Thin strokes and 1px borders — they disappear on light UI
  • 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 #176369
Safe as a 1px border on white
No — use #25A2AD

Meaning and mood

What a colour in this family tends to signal, and how this particular chroma and lightness change the reading.

cleantechnicalfreshclinical

Cyan reads as water, air and infrastructure: cool, hygienic, engineered.

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

At high lightness it disappears into white surfaces and thin strokes vanish entirely.

Reads as
  • FormalityMedium
  • EnergyMedium-high
  • Weight20/100
  • 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#EDB1AC
Analogous left#ACEDD1
Analogous right#ACC8ED
Split-complement 1#EDACC8
Split-complement 2#EDD1AC
Triadic 1#EDACE8
Triadic 2#E8EDAC
Tetradic#D1ACED
On the wheel
Base+30°−30°+120°+240°+180°185°

#ace8ed sits at 185°. Every dot is a harmony position and links to its own page in the table alongside.

RGB percentages

Red67.5%
Green91.0%
Blue92.9%
R · 0–255
172
0xac
G · 0–255
232
0xe8
B · 0–255
237
0xed

CMYK percentages

Cyan27.4%
Magenta2.1%
Yellow0.0%
Key (black)7.1%

Total ink coverage is 37%. Most commercial presses cap around 300% — above that, sheets stop drying properly.

Color previews

#ace8ed text on a black background

contrast 15.52:1

Card sample

#ace8ed text on a white background

contrast 1.35:1

Card sample

#ace8ed on grey

1.24:1

#ace8ed on its own surface

1.28:1

#ace8ed on its dark surface

11.98:1

CSS3 live lab

Text font color

The quick brown fox

color: #ace8ed;
Background color
Panel with #ace8ed background
background-color: #ace8ed;
Text shadow — hex

Glowing headline

text-shadow: 2px 2px 8px #ace8ed;
Text shadow — RGB

Soft neon halo

text-shadow: 0 0 14px rgba(172, 232, 237, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(172, 232, 237, 0.45);
Border & gradient
Gradient panel
border: 3px solid #ace8ed;
background: linear-gradient(135deg, #ace8ed, #ACBDED);
Gradient text

Gradient headline

background: linear-gradient(90deg, #ace8ed, #ACACED);
-webkit-background-clip: text;
color: transparent;
Focus ring
Focused control
outline: 2px solid #ace8ed;
outline-offset: 3px;
Underline & caret

Marked up text

text-decoration-color: #ace8ed;
caret-color: #ace8ed;
Left rule
Pull quote or callout
border-left: 4px solid #ace8ed;
Ring + tint
Selected chip
background: #EAF9FA;
box-shadow: inset 0 0 0 2px #ace8ed;
Conic badge
68%
background: conic-gradient(#ace8ed 68%, #e2e8f0 0);

Transparency

What each alpha value actually composites to. The top row is #ace8ed 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, 232, 237, 0.5)
rgb(172 232 237 / 50%)
#ace8ed80
hsl(185 64% 80% / 50%)
color-mix(in srgb, #ace8ed 50%, transparent)
Alpha8-digit hexFlat on white
10%#ace8ed1a#F7FDFD
20%#ace8ed33#EEFAFB
40%#ace8ed66#DEF6F8
60%#ace8ed99#CDF1F4
80%#ace8edcc#BDEDF1

Gradients from #ace8ed

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, #DEF6F8, #ace8ed 45%, #176369);
Duotone
A short hue run reads richer than a flat fill
background: linear-gradient(120deg, #ace8ed, #93A2E8);
Complement sweep
Loud — keep it behind large type only
background: linear-gradient(90deg, #ace8ed, #EDB1AC);
Spotlight
Hero panels and app headers
background: radial-gradient(120% 120% at 20% 0%, #F2FCFC 0%, #ace8ed 45%, #176369 100%);
Soft wash
Section backgrounds that stay readable
background: linear-gradient(180deg, #F4FAFA, #ffffff);
Mesh
Ambient background, no image weight
background: radial-gradient(60% 60% at 15% 20%, #D6F6E6 0%, transparent 60%), radial-gradient(55% 55% at 85% 15%, #C5D5F2 0%, transparent 60%), radial-gradient(70% 70% at 50% 95%, #176369 0%, transparent 65%), #ace8ed;

Monochromatic scale

Palettes built from #ace8ed

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.

#ace8ed in the real world

Where a color in this family tends to land, and the interface roles it is usually asked to play.

Industries
TechnologyTravelHealthcareMedia
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 15.52:1.

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.

#ace8ed, answered

What color is #ace8ed?

#ace8ed is a light vivid cyan, closest to Pale Turquoise (ΔE2000 2.5). It sits at 185° on the hue wheel with 64% saturation and 80% lightness, which reads as cool.

What is the RGB value of #ace8ed?

rgb(172, 232, 237) — 172 red, 232 green and 237 blue out of 255, or 67.5% / 91% / 92.9% by channel.

What is #ace8ed in HSL and HSV?

hsl(185, 64%, 80%) and hsv(185, 27%, 93%). HSL is what CSS takes; HSV is what your design tool's picker shows, which is why the saturation numbers rarely match.

Is #ace8ed a light or a dark color?

It is a light color. Relative luminance is 0.7260 and perceived brightness is 85%, so black text on it reaches 15.52:1.

Should I use black or white text on #ace8ed?

Black. It scores 15.52:1 against #ace8ed, versus 1.35:1 for white — AAA at any size.

Is #ace8ed accessible on a white background?

#ace8ed on white scores 1.35:1, which fails WCAG AA at every size. Darken it to #1D7F87 to reach 4.5:1, or #165F65 for 7:1.

What is the complementary color of #ace8ed?

#EDB1AC sits directly opposite on the wheel. Softer options are the split-complements #EDACC8 and #EDD1AC, which give the same contrast with far less vibration.

What colors go well with #ace8ed?

For interface work: #F4FAFA as the surface, #C0E9ED for borders, #4B959B for secondary text, #AC2038 as an accent and #176369 for hover and pressed states. For a palette, the analogous pair #ACEDD1 and #ACC8ED stays calm, while #EDB1AC is the loudest partner.

What is #ace8ed in CMYK for printing?

cmyk(27%, 2%, 0%, 7%). This is a screen-to-ink approximation — ask your printer for a proof before committing to a run.

Is #ace8ed warm or cool?

Cool — it scores 89 on a scale where 0 is the warmest orange and 100 the coolest azure. Nudged warmer it becomes #ACEDDA; nudged cooler, #ABD2EE.

Which Tailwind color is closest to #ace8ed?

The cyan family — its 500 step is #06b6d4, ΔE2000 17 away. That is a visible difference, so define #ace8ed as a custom token rather than reaching for the built-in.

How do I use #ace8ed in Tailwind CSS?

Inline it as an arbitrary value with bg-[#ace8ed] or text-[#ace8ed], 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 #ace8ed with 50% opacity?

rgba(172, 232, 237, 0.5), or #ace8ed80 in eight-digit hex. Over white that composites to #D6F4F6; over black, #567477.

Is #ace8ed a web-safe color?

No. The nearest web-safe colour is #99FFFF, ΔE2000 7.3 away. The palette only matters for legacy displays and some email clients now.

What does the color #ace8ed mean?

As a cyan, it reads clean, technical, fresh. Cyan reads as water, air and infrastructure: cool, hygienic, engineered. At this chroma the effect is amplified — it will dominate whatever sits beside it.

What gradient works with #ace8ed?

The safest is same-hue elevation: linear-gradient(135deg, #DEF6F8, #ace8ed 45%, #176369). For more colour, a short hue run to #93A2E8 keeps it rich without turning muddy.

Work with #ace8ed in the Color Lab

Every tool opens with this colour already loaded.

Every value on this page is computed from #ace8ed at request time — conversions, contrast ratios and ΔE distances are calculated, never looked up.