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cyan · cool

#8cdfe9

a light, vivid cyan · cool · closest name: Powder Blue

Token name suggestion: Linen Teal

RGB
140, 223, 233
HSL
187°, 68%, 73%
CMYK
40, 4, 0, 9
Luminance
0.6423

#8cdfe9 is a light vivid cyan, 187° on the wheel and 90/100 on the cool side. Put black text on it (13.85:1). As text it scores 1.52:1 on white — use #1B818E instead. Nearest name is Powder Blue, nearest Tailwind family is cyan.

hsl(187 68% 73%)rgb(140 223 233)Base step 300AAA inkCool

At a glance

Every number on this page in one read: what #8cdfe9 is made of, how bright it looks, and which way it leans.

Hex
#8cdfe9
Hue
187°
cyan
Saturation
68%
vivid
Lightness
73%
light
Brightness
91%
HSV value
Perceived
80%
weighted brightness
Luminance
0.6423
WCAG relative
Temperature
Cool
90/100 cool
Color family
Cyan
Tone
Vivid
Best ink
Black
13.85:1
Closest name
Powder Blue
ΔE2000 5.7
Chroma
26.1
LCH, 0–130ish
OKLCH L
0.854
perceptual lightness
Tailwind
cyan
500 · ΔE 13.2
Web-safe
#99CCFF
nearest of 216
Where it sits
Hue187° of 360°
Saturation68%
Lightness73%
Saturation × lightness field

Left edge is grey, right edge is full chroma; top is white, bottom is black. The dot is #8cdfe9.

Temperature
Warm ← → Cool90% 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
Red9%
Green82%
Blue9%

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

Every format

HEX#8cdfe9
HEX (8-digit)#8cdfe9ff
RGBrgb(140, 223, 233)
RGBArgba(140, 223, 233, 1)
HSLhsl(187, 68%, 73%)
HSV / HSBhsv(186, 40%, 91%)
HWBhwb(187 55% 9%)
CMYKcmyk(40%, 4%, 0%, 9%)
LABlab(84.1 -22.7 -12.8)
LCHlch(84.1 26.1 209.5)
OKLCHoklch(0.854 0.082 205.5)
XYZ (D65)xyz(51.91, 64.23, 86.74)
Decimal9232361
Display P3color(display-p3 0.549 0.875 0.914)
Web-safe#99CCFF

Copy-ready code

every platformclick to select
/* CSS */
color: #8cdfe9;
background-color: #8cdfe9;
/* CSS custom property */
--brand: #8cdfe9;
/* Tailwind (arbitrary) */
class="text-[#8cdfe9] bg-[#8cdfe9]"
/* SCSS */
$brand: #8cdfe9;
/* SwiftUI */
Color(red: 0.549, green: 0.875, blue: 0.914)
/* UIKit */
UIColor(red: 0.549, green: 0.875, blue: 0.914, alpha: 1)
/* Android XML */
<color name="brand">#8CDFE9</color>
/* Android Compose */
Color(0xFF8CDFE9)
/* Flutter */
Color(0xFF8CDFE9)
/* Python / OpenCV (BGR) */
(233, 223, 140)
/* Python / PIL (RGB) */
(140, 223, 233)
/* Java AWT */
new Color(140, 223, 233)
/* .NET */
Color.FromArgb(255, 140, 223, 233)
/* OpenGL / Unity (0–1) */
(0.5490f, 0.8745f, 0.9137f, 1f)
/* LaTeX */
\definecolor{brand}{RGB}{140,223,233}
modern cssclick to select
/* mix without leaving CSS */
background: color-mix(in oklab, #8cdfe9 85%, white);
border-color: color-mix(in oklab, #8cdfe9 40%, transparent);
/* theme-aware in one line */
color: light-dark(#14626B, #D3EBEE);
/* relative colour syntax */
--hover: hsl(from #8cdfe9 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: #F3FBFB;
  --brand-100: #E8F6F8;
  --brand-200: #CAEDF2;
  --brand-300: #8cdfe9;
  --brand-400: #72D8E4;
  --brand-500: #43CADB;
  --brand-600: #27BCCE;
  --brand-700: #219CAB;
  --brand-800: #1A7D89;
  --brand-900: #175B63;
  --brand-950: #0E393E;
  --brand: #8cdfe9;
  --brand-ink: #000000;
  --brand-surface: #F4FAFA;
  --brand-border: #C0E8ED;
  --brand-hover: #6ED7E3;
  --brand-pressed: #50CEDE;
}
@media (prefers-color-scheme: dark) {
  :root {
    --brand-surface: #142324;
    --brand-ink: #D3EBEE;
  }
}
tailwind.config.jsclick to select
theme: {
  extend: {
    colors: {
      brand: {
        50: '#F3FBFB',
        100: '#E8F6F8',
        200: '#CAEDF2',
        300: '#8cdfe9',
        400: '#72D8E4',
        500: '#43CADB',
        600: '#27BCCE',
        700: '#219CAB',
        800: '#1A7D89',
        900: '#175B63',
        950: '#0E393E',
        DEFAULT: '#8cdfe9',
      },
    },
  },
}
scss mapclick to select
$brand: (
  '50': #F3FBFB,
  '100': #E8F6F8,
  '200': #CAEDF2,
  '300': #8cdfe9,
  '400': #72D8E4,
  '500': #43CADB,
  '600': #27BCCE,
  '700': #219CAB,
  '800': #1A7D89,
  '900': #175B63,
  '950': #0E393E,
);
$brand-base: #8cdfe9;
$brand-ink: #000000;

@function brand($step) { @return map-get($brand, $step); }
w3c design tokens (json)click to select
{
  "color": {
    "brand": {
      "50": { "$value": "#F3FBFB", "$type": "color" },
      "100": { "$value": "#E8F6F8", "$type": "color" },
      "200": { "$value": "#CAEDF2", "$type": "color" },
      "300": { "$value": "#8cdfe9", "$type": "color" },
      "400": { "$value": "#72D8E4", "$type": "color" },
      "500": { "$value": "#43CADB", "$type": "color" },
      "600": { "$value": "#27BCCE", "$type": "color" },
      "700": { "$value": "#219CAB", "$type": "color" },
      "800": { "$value": "#1A7D89", "$type": "color" },
      "900": { "$value": "#175B63", "$type": "color" },
      "950": { "$value": "#0E393E", "$type": "color" }
    },
    "brandInk": { "$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 #8cdfe9 · 13.85:1
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 · 13.85:1 · recommended
AA pass · AA large pass · AAA pass
Reading the other direction: #8cdfe9 as text scores 1.52:1 on white and 13.85:1 on black.
Best tinted ink on it, if plain black or white feels flat: #14626B at 4.63:1.

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
#1B818E · 4.59:1
AA on white−40% L
#1B818E
The quick fox
#15626B · 7.02:1
AAA on white−48% L
#15626B
The quick fox
#8cdfe9 · 13.85:1
AA on blackalready passes
#8cdfe9
The quick fox
#8cdfe9 · 13.85:1
AAA on blackalready passes
#8cdfe9

Large text — 24px regular or 18.66px bold and above — only needs 3:1, so #22A1B0 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
#8cdfe9 on white: 1.52:1
AA ✗ fail · AA-large · AAA
Aa
#8cdfe9 on black: 13.85:1
AA ✓ pass · AA-large · AAA
Against the neutral ladder

Contrast is symmetric, so each row covers both directions: #8cdfe9 as text on that neutral, and that neutral as text on #8cdfe9.

NeutralRatioBoth directions
White1.52:1AaAa
Slate 501.45:1AaAa
Slate 1001.38:1AaAa
Slate 2001.23:1AaAa
Slate 3001.02:1AaAa
Slate 4001.69:1AaAa
Slate 5003.14:1AaAa
Slate 6005.00:1AaAa
Slate 7006.83:1AaAa
Slate 8009.65:1AaAa
Slate 90011.77:1AaAa
Black13.85:1AaAa
Colour vision deficiency
true color
protanopia · #D3D9EA
deuteranopia · #C3CDE9
tritanopia · #64E5E2

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. #8cdfe9 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.

#F3FBFB
#E8F6F8
#CAEDF2
#8cdfe9
#72D8E4
#43CADB
#27BCCE
#219CAB
#1A7D89
#175B63
#0E393E
Base = 300Lightest = 50 · #F3FBFBDarkest = 950 · #0E393EText 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 0.020 205.5);
  --brand-100: oklch(0.94 0.033 205.5);
  --brand-200: oklch(0.88 0.049 205.5);
  --brand-300: oklch(0.80 0.064 205.5);
  --brand-400: oklch(0.72 0.075 205.5);
  --brand-500: oklch(0.64 0.082 205.5);
  --brand-600: oklch(0.56 0.082 205.5);
  --brand-700: oklch(0.48 0.077 205.5);
  --brand-800: oklch(0.40 0.069 205.5);
  --brand-900: oklch(0.32 0.057 205.5);
  --brand-950: oklch(0.24 0.045 205.5);
}

Colors that work with #8cdfe9

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#C0E8ED
Hairlines and dividers
Muted text#4B929B
Captions on the surface
Accent#B01C31
Second voice, not a rival
Dark variant#14626B
Hover, pressed, headers
Light variant#EAF9FB
Selected rows, tints
Dark surface#142324
Dark-mode background
Hover#6ED7E3
One step down in lightness
Pressed#50CEDE
Two steps down
Disabled#F0F5F5
Chroma pulled out
Focus ring#97E8F2
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 #8cdfe9

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 #14626B
Safe as a 1px border on white
No — use #22A1B0

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
  • Weight27/100
  • 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#E9968C
Analogous left#8CE9C4
Analogous right#8CB0E9
Split-complement 1#E98CB0
Split-complement 2#E9C48C
Triadic 1#E98CDF
Triadic 2#DFE98C
Tetradic#C48CE9
On the wheel
Base+30°−30°+120°+240°+180°187°

#8cdfe9 sits at 187°. Every dot is a harmony position and links to its own page in the table alongside.

RGB percentages

Red54.9%
Green87.5%
Blue91.4%
R · 0–255
140
0x8c
G · 0–255
223
0xdf
B · 0–255
233
0xe9

CMYK percentages

Cyan39.9%
Magenta4.3%
Yellow0.0%
Key (black)8.6%

Total ink coverage is 53%. Most commercial presses cap around 300% — above that, sheets stop drying properly.

Color previews

#8cdfe9 text on a black background

contrast 13.85:1

Card sample

#8cdfe9 text on a white background

contrast 1.52:1

Card sample

#8cdfe9 on grey

1.38:1

#8cdfe9 on its own surface

1.44:1

#8cdfe9 on its dark surface

10.69:1

CSS3 live lab

Text font color

The quick brown fox

color: #8cdfe9;
Background color
Panel with #8cdfe9 background
background-color: #8cdfe9;
Text shadow — hex

Glowing headline

text-shadow: 2px 2px 8px #8cdfe9;
Text shadow — RGB

Soft neon halo

text-shadow: 0 0 14px rgba(140, 223, 233, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(140, 223, 233, 0.45);
Border & gradient
Gradient panel
border: 3px solid #8cdfe9;
background: linear-gradient(135deg, #8cdfe9, #8CA1E9);
Gradient text

Gradient headline

background: linear-gradient(90deg, #8cdfe9, #8E8CE9);
-webkit-background-clip: text;
color: transparent;
Focus ring
Focused control
outline: 2px solid #8cdfe9;
outline-offset: 3px;
Underline & caret

Marked up text

text-decoration-color: #8cdfe9;
caret-color: #8cdfe9;
Left rule
Pull quote or callout
border-left: 4px solid #8cdfe9;
Ring + tint
Selected chip
background: #EAF9FB;
box-shadow: inset 0 0 0 2px #8cdfe9;
Conic badge
68%
background: conic-gradient(#8cdfe9 68%, #e2e8f0 0);

Transparency

What each alpha value actually composites to. The top row is #8cdfe9 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(140, 223, 233, 0.5)
rgb(140 223 233 / 50%)
#8cdfe980
hsl(187 68% 73% / 50%)
color-mix(in srgb, #8cdfe9 50%, transparent)
Alpha8-digit hexFlat on white
10%#8cdfe91a#F4FCFD
20%#8cdfe933#E8F9FB
40%#8cdfe966#D1F2F6
60%#8cdfe999#BAECF2
80%#8cdfe9cc#A3E5ED

Gradients from #8cdfe9

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, #BFEDF3, #8cdfe9 45%, #14626B);
Duotone
A short hue run reads richer than a flat fill
background: linear-gradient(120deg, #8cdfe9, #7282E4);
Complement sweep
Loud — keep it behind large type only
background: linear-gradient(90deg, #8cdfe9, #E9968C);
Spotlight
Hero panels and app headers
background: radial-gradient(120% 120% at 20% 0%, #D9F4F8 0%, #8cdfe9 45%, #14626B 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%, #B7F1D5 0%, transparent 60%), radial-gradient(55% 55% at 85% 15%, #A6BCEE 0%, transparent 60%), radial-gradient(70% 70% at 50% 95%, #14626B 0%, transparent 65%), #8cdfe9;

Monochromatic scale

Palettes built from #8cdfe9

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.

#8cdfe9 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 13.85:1.

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.

#8cdfe9, answered

What color is #8cdfe9?

#8cdfe9 is a light vivid cyan, closest to Powder Blue (ΔE2000 5.7). It sits at 187° on the hue wheel with 68% saturation and 73% lightness, which reads as cool.

What is the RGB value of #8cdfe9?

rgb(140, 223, 233) — 140 red, 223 green and 233 blue out of 255, or 54.9% / 87.5% / 91.4% by channel.

What is #8cdfe9 in HSL and HSV?

hsl(187, 68%, 73%) and hsv(186, 40%, 91%). HSL is what CSS takes; HSV is what your design tool's picker shows, which is why the saturation numbers rarely match.

Is #8cdfe9 a light or a dark color?

It is a light color. Relative luminance is 0.6423 and perceived brightness is 80%, so black text on it reaches 13.85:1.

Should I use black or white text on #8cdfe9?

Black. It scores 13.85:1 against #8cdfe9, versus 1.52:1 for white — AAA at any size.

Is #8cdfe9 accessible on a white background?

#8cdfe9 on white scores 1.52:1, which fails WCAG AA at every size. Darken it to #1B818E to reach 4.5:1, or #15626B for 7:1.

What is the complementary color of #8cdfe9?

#E9968C sits directly opposite on the wheel. Softer options are the split-complements #E98CB0 and #E9C48C, which give the same contrast with far less vibration.

What colors go well with #8cdfe9?

For interface work: #F4FAFA as the surface, #C0E8ED for borders, #4B929B for secondary text, #B01C31 as an accent and #14626B for hover and pressed states. For a palette, the analogous pair #8CE9C4 and #8CB0E9 stays calm, while #E9968C is the loudest partner.

What is #8cdfe9 in CMYK for printing?

cmyk(40%, 4%, 0%, 9%). This is a screen-to-ink approximation — ask your printer for a proof before committing to a run.

Is #8cdfe9 warm or cool?

Cool — it scores 90 on a scale where 0 is the warmest orange and 100 the coolest azure. Nudged warmer it becomes #8CE9D1; nudged cooler, #8AC5EA.

Which Tailwind color is closest to #8cdfe9?

The cyan family — its 500 step is #06b6d4, ΔE2000 13.2 away. That is a visible difference, so define #8cdfe9 as a custom token rather than reaching for the built-in.

How do I use #8cdfe9 in Tailwind CSS?

Inline it as an arbitrary value with bg-[#8cdfe9] or text-[#8cdfe9], 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 #8cdfe9 with 50% opacity?

rgba(140, 223, 233, 0.5), or #8cdfe980 in eight-digit hex. Over white that composites to #C6EFF4; over black, #467075.

Is #8cdfe9 a web-safe color?

No. The nearest web-safe colour is #99CCFF, ΔE2000 15.9 away. The palette only matters for legacy displays and some email clients now.

What does the color #8cdfe9 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 #8cdfe9?

The safest is same-hue elevation: linear-gradient(135deg, #BFEDF3, #8cdfe9 45%, #14626B). For more colour, a short hue run to #7282E4 keeps it rich without turning muddy.

Work with #8cdfe9 in the Color Lab

Every tool opens with this colour already loaded.

Every value on this page is computed from #8cdfe9 at request time — conversions, contrast ratios and ΔE distances are calculated, never looked up.