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cyan · cool

#8ff8df

a light, electric cyan · cool · closest name: Aqua Marine

Token name suggestion: Meadow Lagoon

RGB
143, 248, 223
HSL
166°, 88%, 77%
CMYK
42, 0, 10, 3
Luminance
0.7830

#8ff8df is a light electric cyan, 166° on the wheel and 82/100 on the cool side. Put black text on it (16.66:1). As text it scores 1.26:1 on white — use #088567 instead. Nearest name is Aqua Marine, nearest Tailwind family is teal.

hsl(166 88% 77%)rgb(143 248 223)Base step 300AAA inkCool

At a glance

Every number on this page in one read: what #8ff8df is made of, how bright it looks, and which way it leans.

Hex
#8ff8df
Hue
166°
cyan
Saturation
88%
electric
Lightness
77%
light
Brightness
97%
HSV value
Perceived
86%
weighted brightness
Luminance
0.7830
WCAG relative
Temperature
Cool
82/100 cool
Color family
Cyan
Tone
Electric
Best ink
Black
16.66:1
Closest name
Aqua Marine
ΔE2000 5
Chroma
36.3
LCH, 0–130ish
OKLCH L
0.908
perceptual lightness
Tailwind
teal
500 · ΔE 16.8
Web-safe
#99FFCC
nearest of 216
Where it sits
Hue166° of 360°
Saturation88%
Lightness77%
Saturation × lightness field

Left edge is grey, right edge is full chroma; top is white, bottom is black. The dot is #8ff8df.

Temperature
Warm ← → Cool82% 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
Red7%
Green86%
Blue7%

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

Every format

HEX#8ff8df
HEX (8-digit)#8ff8dfff
RGBrgb(143, 248, 223)
RGBArgba(143, 248, 223, 1)
HSLhsl(166, 88%, 77%)
HSV / HSBhsv(166, 42%, 97%)
HWBhwb(166 56% 3%)
CMYKcmyk(42%, 0%, 10%, 3%)
LABlab(90.9 -36.2 2.5)
LCHlch(90.9 36.3 176.1)
OKLCHoklch(0.908 0.105 176.7)
XYZ (D65)xyz(58.21, 78.30, 81.84)
Decimal9435359
Display P3color(display-p3 0.561 0.973 0.875)
Web-safe#99FFCC

Copy-ready code

every platformclick to select
/* CSS */
color: #8ff8df;
background-color: #8ff8df;
/* CSS custom property */
--brand: #8ff8df;
/* Tailwind (arbitrary) */
class="text-[#8ff8df] bg-[#8ff8df]"
/* SCSS */
$brand: #8ff8df;
/* SwiftUI */
Color(red: 0.561, green: 0.973, blue: 0.875)
/* UIKit */
UIColor(red: 0.561, green: 0.973, blue: 0.875, alpha: 1)
/* Android XML */
<color name="brand">#8FF8DF</color>
/* Android Compose */
Color(0xFF8FF8DF)
/* Flutter */
Color(0xFF8FF8DF)
/* Python / OpenCV (BGR) */
(223, 248, 143)
/* Python / PIL (RGB) */
(143, 248, 223)
/* Java AWT */
new Color(143, 248, 223)
/* .NET */
Color.FromArgb(255, 143, 248, 223)
/* OpenGL / Unity (0–1) */
(0.5608f, 0.9725f, 0.8745f, 1f)
/* LaTeX */
\definecolor{brand}{RGB}{143,248,223}
modern cssclick to select
/* mix without leaving CSS */
background: color-mix(in oklab, #8ff8df 85%, white);
border-color: color-mix(in oklab, #8ff8df 40%, transparent);
/* theme-aware in one line */
color: light-dark(#08785D, #D3EEE8);
/* relative colour syntax */
--hover: hsl(from #8ff8df 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: #F2FDFA;
  --brand-100: #E5FAF5;
  --brand-200: #C4F8EB;
  --brand-300: #8ff8df;
  --brand-400: #61F5D2;
  --brand-500: #2CF2C3;
  --brand-600: #0EE6B3;
  --brand-700: #0CC095;
  --brand-800: #0A9A77;
  --brand-900: #0C6F57;
  --brand-950: #074536;
  --brand: #8ff8df;
  --brand-ink: #000000;
  --brand-surface: #F4FAF9;
  --brand-border: #C0EDE2;
  --brand-hover: #6EF6D5;
  --brand-pressed: #4CF4CC;
}
@media (prefers-color-scheme: dark) {
  :root {
    --brand-surface: #142420;
    --brand-ink: #D3EEE8;
  }
}
tailwind.config.jsclick to select
theme: {
  extend: {
    colors: {
      brand: {
        50: '#F2FDFA',
        100: '#E5FAF5',
        200: '#C4F8EB',
        300: '#8ff8df',
        400: '#61F5D2',
        500: '#2CF2C3',
        600: '#0EE6B3',
        700: '#0CC095',
        800: '#0A9A77',
        900: '#0C6F57',
        950: '#074536',
        DEFAULT: '#8ff8df',
      },
    },
  },
}
scss mapclick to select
$brand: (
  '50': #F2FDFA,
  '100': #E5FAF5,
  '200': #C4F8EB,
  '300': #8ff8df,
  '400': #61F5D2,
  '500': #2CF2C3,
  '600': #0EE6B3,
  '700': #0CC095,
  '800': #0A9A77,
  '900': #0C6F57,
  '950': #074536,
);
$brand-base: #8ff8df;
$brand-ink: #000000;

@function brand($step) { @return map-get($brand, $step); }
w3c design tokens (json)click to select
{
  "color": {
    "brand": {
      "50": { "$value": "#F2FDFA", "$type": "color" },
      "100": { "$value": "#E5FAF5", "$type": "color" },
      "200": { "$value": "#C4F8EB", "$type": "color" },
      "300": { "$value": "#8ff8df", "$type": "color" },
      "400": { "$value": "#61F5D2", "$type": "color" },
      "500": { "$value": "#2CF2C3", "$type": "color" },
      "600": { "$value": "#0EE6B3", "$type": "color" },
      "700": { "$value": "#0CC095", "$type": "color" },
      "800": { "$value": "#0A9A77", "$type": "color" },
      "900": { "$value": "#0C6F57", "$type": "color" },
      "950": { "$value": "#074536", "$type": "color" }
    },
    "brandInk": { "$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 #8ff8df · 16.66:1
Use #000000AAA at every size.
Aa
12px
Aa
16px
Aa
24px
Aa
White text · 1.26:1
AA fail · AA large fail · AAA fail
Aa
Black text · 16.66:1 · recommended
AA pass · AA large pass · AAA pass
Reading the other direction: #8ff8df as text scores 1.26:1 on white and 16.66:1 on black.
Best tinted ink on it, if plain black or white feels flat: #08785D at 4.32:1.

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
#088567 · 4.60:1
AA on white−49% L
#088567
The quick fox
#06634D · 7.24:1
AAA on white−56% L
#06634D
The quick fox
#8ff8df · 16.66:1
AA on blackalready passes
#8ff8df
The quick fox
#8ff8df · 16.66:1
AAA on blackalready passes
#8ff8df

Large text — 24px regular or 18.66px bold and above — only needs 3:1, so #0AA781 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
#8ff8df on white: 1.26:1
AA ✗ fail · AA-large · AAA
Aa
#8ff8df on black: 16.66:1
AA ✓ pass · AA-large · AAA
Against the neutral ladder

Contrast is symmetric, so each row covers both directions: #8ff8df as text on that neutral, and that neutral as text on #8ff8df.

NeutralRatioBoth directions
White1.26:1AaAa
Slate 501.20:1AaAa
Slate 1001.15:1AaAa
Slate 2001.02:1AaAa
Slate 3001.18:1AaAa
Slate 4002.03:1AaAa
Slate 5003.78:1AaAa
Slate 6006.01:1AaAa
Slate 7008.21:1AaAa
Slate 80011.61:1AaAa
Slate 90014.16:1AaAa
Black16.66:1AaAa
Colour vision deficiency
true color
protanopia · #F1ECDE
deuteranopia · #DFE0E1
tritanopia · #69FBF0

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. #8ff8df 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.

#F2FDFA
#E5FAF5
#C4F8EB
#8ff8df
#61F5D2
#2CF2C3
#0EE6B3
#0CC095
#0A9A77
#0C6F57
#074536
Base = 300Lightest = 50 · #F2FDFADarkest = 950 · #074536Text step on white = 900
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 0.026 176.7);
  --brand-100: oklch(0.94 0.042 176.7);
  --brand-200: oklch(0.88 0.063 176.7);
  --brand-300: oklch(0.80 0.082 176.7);
  --brand-400: oklch(0.72 0.096 176.7);
  --brand-500: oklch(0.64 0.105 176.7);
  --brand-600: oklch(0.56 0.105 176.7);
  --brand-700: oklch(0.48 0.099 176.7);
  --brand-800: oklch(0.40 0.088 176.7);
  --brand-900: oklch(0.32 0.073 176.7);
  --brand-950: oklch(0.24 0.058 176.7);
}

Colors that work with #8ff8df

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#F4FAF9
Tinted page background
Border#C0EDE2
Hairlines and dividers
Muted text#4B9B88
Captions on the surface
Accent#C30964
Second voice, not a rival
Dark variant#08785D
Hover, pressed, headers
Light variant#E7FDF8
Selected rows, tints
Dark surface#142420
Dark-mode background
Hover#6EF6D5
One step down in lightness
Pressed#4CF4CC
Two steps down
Disabled#F3F7F6
Chroma pulled out
Focus ring#9DFEE7
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 #8ff8df

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 #08785D
Safe as a 1px border on white
No — use #0AA781

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.

At this chroma the association is amplified — it will dominate anything placed beside it, so give it space and use it sparingly. The lightness keeps it airy and approachable.

Worth knowing

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

Reads as
  • FormalityLow
  • EnergyHigh
  • Weight23/100
  • 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#F88FA8
Analogous left#8FF8AB
Analogous right#8FDDF8
Split-complement 1#F88FDD
Split-complement 2#F8AB8F
Triadic 1#DF8FF8
Triadic 2#F8DF8F
Tetradic#AB8FF8
On the wheel
Base+30°−30°+120°+240°+180°166°

#8ff8df sits at 166°. Every dot is a harmony position and links to its own page in the table alongside.

RGB percentages

Red56.1%
Green97.3%
Blue87.5%
R · 0–255
143
0x8f
G · 0–255
248
0xf8
B · 0–255
223
0xdf

CMYK percentages

Cyan42.3%
Magenta0.0%
Yellow10.1%
Key (black)2.7%

Total ink coverage is 55%. Most commercial presses cap around 300% — above that, sheets stop drying properly.

Color previews

#8ff8df text on a black background

contrast 16.66:1

Card sample

#8ff8df text on a white background

contrast 1.26:1

Card sample

#8ff8df on grey

1.15:1

#8ff8df on its own surface

1.19:1

#8ff8df on its dark surface

12.79:1

CSS3 live lab

Text font color

The quick brown fox

color: #8ff8df;
Background color
Panel with #8ff8df background
background-color: #8ff8df;
Text shadow — hex

Glowing headline

text-shadow: 2px 2px 8px #8ff8df;
Text shadow — RGB

Soft neon halo

text-shadow: 0 0 14px rgba(143, 248, 223, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(143, 248, 223, 0.45);
Border & gradient
Gradient panel
border: 3px solid #8ff8df;
background: linear-gradient(135deg, #8ff8df, #8FCBF8);
Gradient text

Gradient headline

background: linear-gradient(90deg, #8ff8df, #8FB1F8);
-webkit-background-clip: text;
color: transparent;
Focus ring
Focused control
outline: 2px solid #8ff8df;
outline-offset: 3px;
Underline & caret

Marked up text

text-decoration-color: #8ff8df;
caret-color: #8ff8df;
Left rule
Pull quote or callout
border-left: 4px solid #8ff8df;
Ring + tint
Selected chip
background: #E7FDF8;
box-shadow: inset 0 0 0 2px #8ff8df;
Conic badge
68%
background: conic-gradient(#8ff8df 68%, #e2e8f0 0);

Transparency

What each alpha value actually composites to. The top row is #8ff8df 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(143, 248, 223, 0.5)
rgb(143 248 223 / 50%)
#8ff8df80
hsl(166 88% 77% / 50%)
color-mix(in srgb, #8ff8df 50%, transparent)
Alpha8-digit hexFlat on white
10%#8ff8df1a#F4FEFC
20%#8ff8df33#E9FEF9
40%#8ff8df66#D2FCF2
60%#8ff8df99#BCFBEC
80%#8ff8dfcc#A5F9E5

Gradients from #8ff8df

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, #C9FCEF, #8ff8df 45%, #08785D);
Duotone
A short hue run reads richer than a flat fill
background: linear-gradient(120deg, #8ff8df, #72B3F6);
Complement sweep
Loud — keep it behind large type only
background: linear-gradient(90deg, #8ff8df, #F88FA8);
Spotlight
Hero panels and app headers
background: radial-gradient(120% 120% at 20% 0%, #E6FDF8 0%, #8ff8df 45%, #08785D 100%);
Soft wash
Section backgrounds that stay readable
background: linear-gradient(180deg, #F4FAF9, #ffffff);
Mesh
Ambient background, no image weight
background: radial-gradient(60% 60% at 15% 20%, #BFFBCA 0%, transparent 60%), radial-gradient(55% 55% at 85% 15%, #ACDFFA 0%, transparent 60%), radial-gradient(70% 70% at 50% 95%, #08785D 0%, transparent 65%), #8ff8df;

Monochromatic scale

Palettes built from #8ff8df

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.

#8ff8df 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

Sits outside most CMYK gamuts — expect a duller press result, or specify a spot ink.

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 16.66:1.

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.

#8ff8df, answered

What color is #8ff8df?

#8ff8df is a light electric cyan, closest to Aqua Marine (ΔE2000 5). It sits at 166° on the hue wheel with 88% saturation and 77% lightness, which reads as cool.

What is the RGB value of #8ff8df?

rgb(143, 248, 223) — 143 red, 248 green and 223 blue out of 255, or 56.1% / 97.3% / 87.5% by channel.

What is #8ff8df in HSL and HSV?

hsl(166, 88%, 77%) and hsv(166, 42%, 97%). HSL is what CSS takes; HSV is what your design tool's picker shows, which is why the saturation numbers rarely match.

Is #8ff8df a light or a dark color?

It is a light color. Relative luminance is 0.7830 and perceived brightness is 86%, so black text on it reaches 16.66:1.

Should I use black or white text on #8ff8df?

Black. It scores 16.66:1 against #8ff8df, versus 1.26:1 for white — AAA at any size.

Is #8ff8df accessible on a white background?

#8ff8df on white scores 1.26:1, which fails WCAG AA at every size. Darken it to #088567 to reach 4.5:1, or #06634D for 7:1.

What is the complementary color of #8ff8df?

#F88FA8 sits directly opposite on the wheel. Softer options are the split-complements #F88FDD and #F8AB8F, which give the same contrast with far less vibration.

What colors go well with #8ff8df?

For interface work: #F4FAF9 as the surface, #C0EDE2 for borders, #4B9B88 for secondary text, #C30964 as an accent and #08785D for hover and pressed states. For a palette, the analogous pair #8FF8AB and #8FDDF8 stays calm, while #F88FA8 is the loudest partner.

What is #8ff8df in CMYK for printing?

cmyk(42%, 0%, 10%, 3%). This is a screen-to-ink approximation — a color this saturated sits outside most CMYK gamuts and will print duller than it looks here.

Is #8ff8df warm or cool?

Cool — it scores 82 on a scale where 0 is the warmest orange and 100 the coolest azure. Nudged warmer it becomes #8FF8B9; nudged cooler, #8EEBF9.

Which Tailwind color is closest to #8ff8df?

The teal family — its 500 step is #14b8a6, ΔE2000 16.8 away. That is a visible difference, so define #8ff8df as a custom token rather than reaching for the built-in.

How do I use #8ff8df in Tailwind CSS?

Inline it as an arbitrary value with bg-[#8ff8df] or text-[#8ff8df], 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 #8ff8df with 50% opacity?

rgba(143, 248, 223, 0.5), or #8ff8df80 in eight-digit hex. Over white that composites to #C7FCEF; over black, #487C70.

Is #8ff8df a web-safe color?

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

What does the color #8ff8df 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 #8ff8df?

The safest is same-hue elevation: linear-gradient(135deg, #C9FCEF, #8ff8df 45%, #08785D). For more colour, a short hue run to #72B3F6 keeps it rich without turning muddy.

Work with #8ff8df in the Color Lab

Every tool opens with this colour already loaded.

Every value on this page is computed from #8ff8df at request time — conversions, contrast ratios and ΔE distances are calculated, never looked up.