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cyan · cool

#ade6df

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

Token name suggestion: Meadow Reef

RGB
173, 230, 223
HSL
173°, 53%, 79%
CMYK
25, 0, 3, 10
Luminance
0.7081

#ade6df is a light vivid cyan, 173° on the wheel and 84/100 on the cool side. Put black text on it (15.16:1). As text it scores 1.39:1 on white — use #278176 instead. Nearest name is Pale Turquoise, nearest Tailwind family is teal.

hsl(173 53% 79%)rgb(173 230 223)Base step 300AAA inkCool

At a glance

Every number on this page in one read: what #ade6df is made of, how bright it looks, and which way it leans.

Hex
#ade6df
Hue
173°
cyan
Saturation
53%
vivid
Lightness
79%
light
Brightness
90%
HSV value
Perceived
84%
weighted brightness
Luminance
0.7081
WCAG relative
Temperature
Cool
84/100 cool
Color family
Cyan
Tone
Vivid
Best ink
Black
15.16:1
Closest name
Pale Turquoise
ΔE2000 3.3
Chroma
19.6
LCH, 0–130ish
OKLCH L
0.884
perceptual lightness
Tailwind
teal
500 · ΔE 17.2
Web-safe
#99FFCC
nearest of 216
Where it sits
Hue173° of 360°
Saturation53%
Lightness79%
Saturation × lightness field

Left edge is grey, right edge is full chroma; top is white, bottom is black. The dot is #ade6df.

Temperature
Warm ← → Cool84% 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
Red13%
Green80%
Blue8%

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

Every format

HEX#ade6df
HEX (8-digit)#ade6dfff
RGBrgb(173, 230, 223)
RGBArgba(173, 230, 223, 1)
HSLhsl(173, 53%, 79%)
HSV / HSBhsv(173, 25%, 90%)
HWBhwb(173 68% 10%)
CMYKcmyk(25%, 0%, 3%, 10%)
LABlab(87.4 -19.5 -2.5)
LCHlch(87.4 19.6 187.3)
OKLCHoklch(0.884 0.059 186.8)
XYZ (D65)xyz(58.85, 70.80, 80.36)
Decimal11396831
Display P3color(display-p3 0.678 0.902 0.875)
Web-safe#99FFCC

Copy-ready code

every platformclick to select
/* CSS */
color: #ade6df;
background-color: #ade6df;
/* CSS custom property */
--brand: #ade6df;
/* Tailwind (arbitrary) */
class="text-[#ade6df] bg-[#ade6df]"
/* SCSS */
$brand: #ade6df;
/* SwiftUI */
Color(red: 0.678, green: 0.902, blue: 0.875)
/* UIKit */
UIColor(red: 0.678, green: 0.902, blue: 0.875, alpha: 1)
/* Android XML */
<color name="brand">#ADE6DF</color>
/* Android Compose */
Color(0xFFADE6DF)
/* Flutter */
Color(0xFFADE6DF)
/* Python / OpenCV (BGR) */
(223, 230, 173)
/* Python / PIL (RGB) */
(173, 230, 223)
/* Java AWT */
new Color(173, 230, 223)
/* .NET */
Color.FromArgb(255, 173, 230, 223)
/* OpenGL / Unity (0–1) */
(0.6784f, 0.9020f, 0.8745f, 1f)
/* LaTeX */
\definecolor{brand}{RGB}{173,230,223}
modern cssclick to select
/* mix without leaving CSS */
background: color-mix(in oklab, #ade6df 85%, white);
border-color: color-mix(in oklab, #ade6df 40%, transparent);
/* theme-aware in one line */
color: light-dark(#1E6259, #D3EEEB);
/* relative colour syntax */
--hover: hsl(from #ade6df 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: #F4FBFA;
  --brand-100: #E9F6F4;
  --brand-200: #CEEDEA;
  --brand-300: #ade6df;
  --brand-400: #7ED8CD;
  --brand-500: #53CBBC;
  --brand-600: #39BCAC;
  --brand-700: #309C8F;
  --brand-800: #267D72;
  --brand-900: #1F5B54;
  --brand-950: #133934;
  --brand: #ade6df;
  --brand-ink: #000000;
  --brand-surface: #F4FAFA;
  --brand-border: #C0ECE7;
  --brand-hover: #92DED4;
  --brand-pressed: #76D5CA;
}
@media (prefers-color-scheme: dark) {
  :root {
    --brand-surface: #142422;
    --brand-ink: #D3EEEB;
  }
}
tailwind.config.jsclick to select
theme: {
  extend: {
    colors: {
      brand: {
        50: '#F4FBFA',
        100: '#E9F6F4',
        200: '#CEEDEA',
        300: '#ade6df',
        400: '#7ED8CD',
        500: '#53CBBC',
        600: '#39BCAC',
        700: '#309C8F',
        800: '#267D72',
        900: '#1F5B54',
        950: '#133934',
        DEFAULT: '#ade6df',
      },
    },
  },
}
scss mapclick to select
$brand: (
  '50': #F4FBFA,
  '100': #E9F6F4,
  '200': #CEEDEA,
  '300': #ade6df,
  '400': #7ED8CD,
  '500': #53CBBC,
  '600': #39BCAC,
  '700': #309C8F,
  '800': #267D72,
  '900': #1F5B54,
  '950': #133934,
);
$brand-base: #ade6df;
$brand-ink: #000000;

@function brand($step) { @return map-get($brand, $step); }
w3c design tokens (json)click to select
{
  "color": {
    "brand": {
      "50": { "$value": "#F4FBFA", "$type": "color" },
      "100": { "$value": "#E9F6F4", "$type": "color" },
      "200": { "$value": "#CEEDEA", "$type": "color" },
      "300": { "$value": "#ade6df", "$type": "color" },
      "400": { "$value": "#7ED8CD", "$type": "color" },
      "500": { "$value": "#53CBBC", "$type": "color" },
      "600": { "$value": "#39BCAC", "$type": "color" },
      "700": { "$value": "#309C8F", "$type": "color" },
      "800": { "$value": "#267D72", "$type": "color" },
      "900": { "$value": "#1F5B54", "$type": "color" },
      "950": { "$value": "#133934", "$type": "color" }
    },
    "brandInk": { "$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 #ade6df · 15.16:1
Use #000000AAA at every size.
Aa
12px
Aa
16px
Aa
24px
Aa
White text · 1.39:1
AA fail · AA large fail · AAA fail
Aa
Black text · 15.16:1 · recommended
AA pass · AA large pass · AAA pass
Reading the other direction: #ade6df as text scores 1.39:1 on white and 15.16:1 on black.
Best tinted ink on it, if plain black or white feels flat: #1E6259 at 5.15:1.

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
#278176 · 4.68:1
AA on white−46% L
#278176
The quick fox
#1E6259 · 7.13:1
AAA on white−54% L
#1E6259
The quick fox
#ade6df · 15.16:1
AA on blackalready passes
#ade6df
The quick fox
#ade6df · 15.16:1
AAA on blackalready passes
#ade6df

Large text — 24px regular or 18.66px bold and above — only needs 3:1, so #32A496 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
#ade6df on white: 1.39:1
AA ✗ fail · AA-large · AAA
Aa
#ade6df on black: 15.16:1
AA ✓ pass · AA-large · AAA
Against the neutral ladder

Contrast is symmetric, so each row covers both directions: #ade6df as text on that neutral, and that neutral as text on #ade6df.

NeutralRatioBoth directions
White1.39:1AaAa
Slate 501.32:1AaAa
Slate 1001.26:1AaAa
Slate 2001.12:1AaAa
Slate 3001.07:1AaAa
Slate 4001.85:1AaAa
Slate 5003.44:1AaAa
Slate 6005.47:1AaAa
Slate 7007.48:1AaAa
Slate 80010.56:1AaAa
Slate 90012.89:1AaAa
Black15.16:1AaAa
Colour vision deficiency
true color
protanopia · #E0E0DF
deuteranopia · #D5D8E0
tritanopia · #9CE9E4

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. #ade6df 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.

#F4FBFA
#E9F6F4
#CEEDEA
#ade6df
#7ED8CD
#53CBBC
#39BCAC
#309C8F
#267D72
#1F5B54
#133934
Base = 300Lightest = 50 · #F4FBFADarkest = 950 · #133934Text 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 0.015 186.8);
  --brand-100: oklch(0.94 0.024 186.8);
  --brand-200: oklch(0.88 0.035 186.8);
  --brand-300: oklch(0.80 0.046 186.8);
  --brand-400: oklch(0.72 0.054 186.8);
  --brand-500: oklch(0.64 0.059 186.8);
  --brand-600: oklch(0.56 0.059 186.8);
  --brand-700: oklch(0.48 0.055 186.8);
  --brand-800: oklch(0.40 0.049 186.8);
  --brand-900: oklch(0.32 0.041 186.8);
  --brand-950: oklch(0.24 0.032 186.8);
}

Colors that work with #ade6df

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#C0ECE7
Hairlines and dividers
Muted text#4B9B91
Captions on the surface
Accent#A02C58
Second voice, not a rival
Dark variant#1E6259
Hover, pressed, headers
Light variant#EBF9F7
Selected rows, tints
Dark surface#142422
Dark-mode background
Hover#92DED4
One step down in lightness
Pressed#76D5CA
Two steps down
Disabled#F3F7F6
Chroma pulled out
Focus ring#B8EFE8
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 #ade6df

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 #1E6259
Safe as a 1px border on white
No — use #32A496

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
  • 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#E6ADB4
Analogous left#ADE6C2
Analogous right#ADD0E6
Split-complement 1#E6ADD0
Split-complement 2#E6C2AD
Triadic 1#DFADE6
Triadic 2#E6DFAD
Tetradic#C2ADE6
On the wheel
Base+30°−30°+120°+240°+180°173°

#ade6df sits at 173°. Every dot is a harmony position and links to its own page in the table alongside.

RGB percentages

Red67.8%
Green90.2%
Blue87.5%
R · 0–255
173
0xad
G · 0–255
230
0xe6
B · 0–255
223
0xdf

CMYK percentages

Cyan24.8%
Magenta0.0%
Yellow3.0%
Key (black)9.8%

Total ink coverage is 38%. Most commercial presses cap around 300% — above that, sheets stop drying properly.

Color previews

#ade6df text on a black background

contrast 15.16:1

Card sample

#ade6df text on a white background

contrast 1.39:1

Card sample

#ade6df on grey

1.26:1

#ade6df on its own surface

1.31:1

#ade6df on its dark surface

11.62:1

CSS3 live lab

Text font color

The quick brown fox

color: #ade6df;
Background color
Panel with #ade6df background
background-color: #ade6df;
Text shadow — hex

Glowing headline

text-shadow: 2px 2px 8px #ade6df;
Text shadow — RGB

Soft neon halo

text-shadow: 0 0 14px rgba(173, 230, 223, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(173, 230, 223, 0.45);
Border & gradient
Gradient panel
border: 3px solid #ade6df;
background: linear-gradient(135deg, #ade6df, #ADC7E6);
Gradient text

Gradient headline

background: linear-gradient(90deg, #ade6df, #ADB9E6);
-webkit-background-clip: text;
color: transparent;
Focus ring
Focused control
outline: 2px solid #ade6df;
outline-offset: 3px;
Underline & caret

Marked up text

text-decoration-color: #ade6df;
caret-color: #ade6df;
Left rule
Pull quote or callout
border-left: 4px solid #ade6df;
Ring + tint
Selected chip
background: #EBF9F7;
box-shadow: inset 0 0 0 2px #ade6df;
Conic badge
68%
background: conic-gradient(#ade6df 68%, #e2e8f0 0);

Transparency

What each alpha value actually composites to. The top row is #ade6df 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(173, 230, 223, 0.5)
rgb(173 230 223 / 50%)
#ade6df80
hsl(173 53% 79% / 50%)
color-mix(in srgb, #ade6df 50%, transparent)
Alpha8-digit hexFlat on white
10%#ade6df1a#F7FDFC
20%#ade6df33#EFFAF9
40%#ade6df66#DEF5F2
60%#ade6df99#CEF0EC
80%#ade6dfcc#BDEBE5

Gradients from #ade6df

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, #DCF4F1, #ade6df 45%, #1E6259);
Duotone
A short hue run reads richer than a flat fill
background: linear-gradient(120deg, #ade6df, #95B1DF);
Complement sweep
Loud — keep it behind large type only
background: linear-gradient(90deg, #ade6df, #E6ADB4);
Spotlight
Hero panels and app headers
background: radial-gradient(120% 120% at 20% 0%, #F3FBFA 0%, #ade6df 45%, #1E6259 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%, #D4F2DD 0%, transparent 60%), radial-gradient(55% 55% at 85% 15%, #C4DAED 0%, transparent 60%), radial-gradient(70% 70% at 50% 95%, #1E6259 0%, transparent 65%), #ade6df;

Monochromatic scale

Palettes built from #ade6df

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.

#ade6df 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 15.16:1.

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.

#ade6df, answered

What color is #ade6df?

#ade6df is a light vivid cyan, closest to Pale Turquoise (ΔE2000 3.3). It sits at 173° on the hue wheel with 53% saturation and 79% lightness, which reads as cool.

What is the RGB value of #ade6df?

rgb(173, 230, 223) — 173 red, 230 green and 223 blue out of 255, or 67.8% / 90.2% / 87.5% by channel.

What is #ade6df in HSL and HSV?

hsl(173, 53%, 79%) and hsv(173, 25%, 90%). HSL is what CSS takes; HSV is what your design tool's picker shows, which is why the saturation numbers rarely match.

Is #ade6df a light or a dark color?

It is a light color. Relative luminance is 0.7081 and perceived brightness is 84%, so black text on it reaches 15.16:1.

Should I use black or white text on #ade6df?

Black. It scores 15.16:1 against #ade6df, versus 1.39:1 for white — AAA at any size.

Is #ade6df accessible on a white background?

#ade6df on white scores 1.39:1, which fails WCAG AA at every size. Darken it to #278176 to reach 4.5:1, or #1E6259 for 7:1.

What is the complementary color of #ade6df?

#E6ADB4 sits directly opposite on the wheel. Softer options are the split-complements #E6ADD0 and #E6C2AD, which give the same contrast with far less vibration.

What colors go well with #ade6df?

For interface work: #F4FAFA as the surface, #C0ECE7 for borders, #4B9B91 for secondary text, #A02C58 as an accent and #1E6259 for hover and pressed states. For a palette, the analogous pair #ADE6C2 and #ADD0E6 stays calm, while #E6ADB4 is the loudest partner.

What is #ade6df in CMYK for printing?

cmyk(25%, 0%, 3%, 10%). This is a screen-to-ink approximation — ask your printer for a proof before committing to a run.

Is #ade6df warm or cool?

Cool — it scores 84 on a scale where 0 is the warmest orange and 100 the coolest azure. Nudged warmer it becomes #ADE6CA; nudged cooler, #ACD9E7.

Which Tailwind color is closest to #ade6df?

The teal family — its 500 step is #14b8a6, ΔE2000 17.2 away. That is a visible difference, so define #ade6df as a custom token rather than reaching for the built-in.

How do I use #ade6df in Tailwind CSS?

Inline it as an arbitrary value with bg-[#ade6df] or text-[#ade6df], 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 #ade6df with 50% opacity?

rgba(173, 230, 223, 0.5), or #ade6df80 in eight-digit hex. Over white that composites to #D6F3EF; over black, #577370.

Is #ade6df a web-safe color?

No. The nearest web-safe colour is #99FFCC, ΔE2000 14 away. The palette only matters for legacy displays and some email clients now.

What does the color #ade6df 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 #ade6df?

The safest is same-hue elevation: linear-gradient(135deg, #DCF4F1, #ade6df 45%, #1E6259). For more colour, a short hue run to #95B1DF keeps it rich without turning muddy.

Work with #ade6df in the Color Lab

Every tool opens with this colour already loaded.

Every value on this page is computed from #ade6df at request time — conversions, contrast ratios and ΔE distances are calculated, never looked up.