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cyan · cool

#8acfbc

a light, soft cyan · cool · closest name: Medium Aqua Marine

Token name suggestion: Morning Teal

RGB
138, 207, 188
HSL
164°, 42%, 68%
CMYK
33, 0, 9, 19
Luminance
0.5366

#8acfbc is a light soft cyan, 164° on the wheel and 81/100 on the cool side. Put black text on it (11.73:1). As text it scores 1.79:1 on white — use #35816C instead. Nearest name is Medium Aqua Marine, nearest Tailwind family is teal.

hsl(164 42% 68%)rgb(138 207 188)Base step 400AAA inkCool

At a glance

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

Hex
#8acfbc
Hue
164°
cyan
Saturation
42%
soft
Lightness
68%
light
Brightness
81%
HSV value
Perceived
73%
weighted brightness
Luminance
0.5366
WCAG relative
Temperature
Cool
81/100 cool
Color family
Cyan
Tone
Soft
Best ink
Black
11.73:1
Closest name
Medium Aqua Marine
ΔE2000 6.2
Chroma
26.0
LCH, 0–130ish
OKLCH L
0.803
perceptual lightness
Tailwind
teal
500 · ΔE 10.8
Web-safe
#99CCCC
nearest of 216
Where it sits
Hue164° of 360°
Saturation42%
Lightness68%
Saturation × lightness field

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

Temperature
Warm ← → Cool81% 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
Red10%
Green83%
Blue7%

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

Every format

HEX#8acfbc
HEX (8-digit)#8acfbcff
RGBrgb(138, 207, 188)
RGBArgba(138, 207, 188, 1)
HSLhsl(164, 42%, 68%)
HSV / HSBhsv(163, 33%, 81%)
HWBhwb(164 54% 19%)
CMYKcmyk(33%, 0%, 9%, 19%)
LABlab(78.3 -25.9 2.5)
LCHlch(78.3 26.0 174.4)
OKLCHoklch(0.803 0.075 175.1)
XYZ (D65)xyz(41.87, 53.66, 55.72)
Decimal9097148
Display P3color(display-p3 0.541 0.812 0.737)
Web-safe#99CCCC

Copy-ready code

every platformclick to select
/* CSS */
color: #8acfbc;
background-color: #8acfbc;
/* CSS custom property */
--brand: #8acfbc;
/* Tailwind (arbitrary) */
class="text-[#8acfbc] bg-[#8acfbc]"
/* SCSS */
$brand: #8acfbc;
/* SwiftUI */
Color(red: 0.541, green: 0.812, blue: 0.737)
/* UIKit */
UIColor(red: 0.541, green: 0.812, blue: 0.737, alpha: 1)
/* Android XML */
<color name="brand">#8ACFBC</color>
/* Android Compose */
Color(0xFF8ACFBC)
/* Flutter */
Color(0xFF8ACFBC)
/* Python / OpenCV (BGR) */
(188, 207, 138)
/* Python / PIL (RGB) */
(138, 207, 188)
/* Java AWT */
new Color(138, 207, 188)
/* .NET */
Color.FromArgb(255, 138, 207, 188)
/* OpenGL / Unity (0–1) */
(0.5412f, 0.8118f, 0.7373f, 1f)
/* LaTeX */
\definecolor{brand}{RGB}{138,207,188}
modern cssclick to select
/* mix without leaving CSS */
background: color-mix(in oklab, #8acfbc 85%, white);
border-color: color-mix(in oklab, #8acfbc 40%, transparent);
/* theme-aware in one line */
color: light-dark(#255A4C, #D4EDE6);
/* relative colour syntax */
--hover: hsl(from #8acfbc 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: #F5FAF8;
  --brand-100: #EBF5F2;
  --brand-200: #D2EAE3;
  --brand-300: #AFDED1;
  --brand-400: #8acfbc;
  --brand-500: #60BEA4;
  --brand-600: #47AE91;
  --brand-700: #3B9179;
  --brand-800: #2F7461;
  --brand-900: #265548;
  --brand-950: #18352D;
  --brand: #8acfbc;
  --brand-ink: #000000;
  --brand-surface: #F4FAF9;
  --brand-border: #C5E7DE;
  --brand-hover: #71C5AD;
  --brand-pressed: #57BA9F;
}
@media (prefers-color-scheme: dark) {
  :root {
    --brand-surface: #142420;
    --brand-ink: #D4EDE6;
  }
}
tailwind.config.jsclick to select
theme: {
  extend: {
    colors: {
      brand: {
        50: '#F5FAF8',
        100: '#EBF5F2',
        200: '#D2EAE3',
        300: '#AFDED1',
        400: '#8acfbc',
        500: '#60BEA4',
        600: '#47AE91',
        700: '#3B9179',
        800: '#2F7461',
        900: '#265548',
        950: '#18352D',
        DEFAULT: '#8acfbc',
      },
    },
  },
}
scss mapclick to select
$brand: (
  '50': #F5FAF8,
  '100': #EBF5F2,
  '200': #D2EAE3,
  '300': #AFDED1,
  '400': #8acfbc,
  '500': #60BEA4,
  '600': #47AE91,
  '700': #3B9179,
  '800': #2F7461,
  '900': #265548,
  '950': #18352D,
);
$brand-base: #8acfbc;
$brand-ink: #000000;

@function brand($step) { @return map-get($brand, $step); }
w3c design tokens (json)click to select
{
  "color": {
    "brand": {
      "50": { "$value": "#F5FAF8", "$type": "color" },
      "100": { "$value": "#EBF5F2", "$type": "color" },
      "200": { "$value": "#D2EAE3", "$type": "color" },
      "300": { "$value": "#AFDED1", "$type": "color" },
      "400": { "$value": "#8acfbc", "$type": "color" },
      "500": { "$value": "#60BEA4", "$type": "color" },
      "600": { "$value": "#47AE91", "$type": "color" },
      "700": { "$value": "#3B9179", "$type": "color" },
      "800": { "$value": "#2F7461", "$type": "color" },
      "900": { "$value": "#265548", "$type": "color" },
      "950": { "$value": "#18352D", "$type": "color" }
    },
    "brandInk": { "$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 #8acfbc · 11.73:1
Use #000000AAA at every size.
Aa
12px
Aa
16px
Aa
24px
Aa
White text · 1.79:1
AA fail · AA large fail · AAA fail
Aa
Black text · 11.73:1 · recommended
AA pass · AA large pass · AAA pass
Reading the other direction: #8acfbc as text scores 1.79:1 on white and 11.73:1 on black.
Best tinted ink on it, if plain black or white feels flat: #255A4C at 4.43:1.

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
#35816C · 4.66:1
AA on white−32% L
#35816C
The quick fox
#276051 · 7.30:1
AAA on white−41% L
#276051
The quick fox
#8acfbc · 11.73:1
AA on blackalready passes
#8acfbc
The quick fox
#8acfbc · 11.73:1
AAA on blackalready passes
#8acfbc

Large text — 24px regular or 18.66px bold and above — only needs 3:1, so #44A58A 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
#8acfbc on white: 1.79:1
AA ✗ fail · AA-large · AAA
Aa
#8acfbc on black: 11.73:1
AA ✓ pass · AA-large · AAA
Against the neutral ladder

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

NeutralRatioBoth directions
White1.79:1AaAa
Slate 501.71:1AaAa
Slate 1001.63:1AaAa
Slate 2001.45:1AaAa
Slate 3001.21:1AaAa
Slate 4001.43:1AaAa
Slate 5002.66:1AaAa
Slate 6004.23:1AaAa
Slate 7005.78:1AaAa
Slate 8008.17:1AaAa
Slate 9009.97:1AaAa
Black11.73:1AaAa
Colour vision deficiency
true color
protanopia · #CAC7BB
deuteranopia · #BEBEBD
tritanopia · #76D1C9

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. #8acfbc is pinned to step 400; the rest hold its hue and let saturation ease off at the extremes so the pale end never turns neon.

#F5FAF8
#EBF5F2
#D2EAE3
#AFDED1
#8acfbc
#60BEA4
#47AE91
#3B9179
#2F7461
#265548
#18352D
Base = 400Lightest = 50 · #F5FAF8Darkest = 950 · #18352DText 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 0.019 175.1);
  --brand-100: oklch(0.94 0.030 175.1);
  --brand-200: oklch(0.88 0.045 175.1);
  --brand-300: oklch(0.80 0.058 175.1);
  --brand-400: oklch(0.72 0.069 175.1);
  --brand-500: oklch(0.64 0.075 175.1);
  --brand-600: oklch(0.56 0.075 175.1);
  --brand-700: oklch(0.48 0.070 175.1);
  --brand-800: oklch(0.40 0.063 175.1);
  --brand-900: oklch(0.32 0.052 175.1);
  --brand-950: oklch(0.24 0.041 175.1);
}

Colors that work with #8acfbc

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#C5E7DE
Hairlines and dividers
Muted text#4B9B85
Captions on the surface
Accent#943868
Second voice, not a rival
Dark variant#255A4C
Hover, pressed, headers
Light variant#EDF8F5
Selected rows, tints
Dark surface#142420
Dark-mode background
Hover#71C5AD
One step down in lightness
Pressed#57BA9F
Two steps down
Disabled#DFEAE7
Chroma pulled out
Focus ring#91DCC7
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 #8acfbc

Derived from its contrast, chroma and lightness — not from taste.

Works well for
  • Text and icons on dark surfaces
  • Charts, tags and secondary surfaces
  • Card and section backgrounds
  • Brand accents, badges and data highlights
Use with care
  • Text of any size on white — fails WCAG AA
  • 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 #255A4C
Safe as a 1px border on white
No — use #44A58A

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.

The muted chroma softens the association — it reads considered rather than loud, which suits long-form and data-heavy screens. 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
  • Weight32/100
  • 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#CF8A9D
Analogous left#8ACF99
Analogous right#8ABFCF
Split-complement 1#CF8ABF
Split-complement 2#CF998A
Triadic 1#BC8ACF
Triadic 2#CFBC8A
Tetradic#998ACF
On the wheel
Base+30°−30°+120°+240°+180°164°

#8acfbc sits at 164°. Every dot is a harmony position and links to its own page in the table alongside.

RGB percentages

Red54.1%
Green81.2%
Blue73.7%
R · 0–255
138
0x8a
G · 0–255
207
0xcf
B · 0–255
188
0xbc

CMYK percentages

Cyan33.3%
Magenta0.0%
Yellow9.2%
Key (black)18.8%

Total ink coverage is 61%. Most commercial presses cap around 300% — above that, sheets stop drying properly.

Color previews

#8acfbc text on a black background

contrast 11.73:1

Card sample

#8acfbc text on a white background

contrast 1.79:1

Card sample

#8acfbc on grey

1.63:1

#8acfbc on its own surface

1.70:1

#8acfbc on its dark surface

9.00:1

CSS3 live lab

Text font color

The quick brown fox

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

Glowing headline

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

Soft neon halo

text-shadow: 0 0 14px rgba(138, 207, 188, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(138, 207, 188, 0.45);
Border & gradient
Gradient panel
border: 3px solid #8acfbc;
background: linear-gradient(135deg, #8acfbc, #8AB4CF);
Gradient text

Gradient headline

background: linear-gradient(90deg, #8acfbc, #8AA3CF);
-webkit-background-clip: text;
color: transparent;
Focus ring
Focused control
outline: 2px solid #8acfbc;
outline-offset: 3px;
Underline & caret

Marked up text

text-decoration-color: #8acfbc;
caret-color: #8acfbc;
Left rule
Pull quote or callout
border-left: 4px solid #8acfbc;
Ring + tint
Selected chip
background: #EDF8F5;
box-shadow: inset 0 0 0 2px #8acfbc;
Conic badge
68%
background: conic-gradient(#8acfbc 68%, #e2e8f0 0);

Transparency

What each alpha value actually composites to. The top row is #8acfbc 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(138, 207, 188, 0.5)
rgb(138 207 188 / 50%)
#8acfbc80
hsl(164 42% 68% / 50%)
color-mix(in srgb, #8acfbc 50%, transparent)
Alpha8-digit hexFlat on white
10%#8acfbc1a#F3FAF8
20%#8acfbc33#E8F5F2
40%#8acfbc66#D0ECE4
60%#8acfbc99#B9E2D7
80%#8acfbccc#A1D9C9

Gradients from #8acfbc

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, #B5E1D5, #8acfbc 45%, #255A4C);
Duotone
A short hue run reads richer than a flat fill
background: linear-gradient(120deg, #8acfbc, #749FC6);
Complement sweep
Loud — keep it behind large type only
background: linear-gradient(90deg, #8acfbc, #CF8A9D);
Spotlight
Hero panels and app headers
background: radial-gradient(120% 120% at 20% 0%, #CBEAE1 0%, #8acfbc 45%, #255A4C 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%, #AEDEB5 0%, transparent 60%), radial-gradient(55% 55% at 85% 15%, #A0C6D8 0%, transparent 60%), radial-gradient(70% 70% at 50% 95%, #255A4C 0%, transparent 65%), #8acfbc;

Monochromatic scale

Palettes built from #8acfbc

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.

#8acfbc 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 11.73:1.

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.

#8acfbc, answered

What color is #8acfbc?

#8acfbc is a light soft cyan, closest to Medium Aqua Marine (ΔE2000 6.2). It sits at 164° on the hue wheel with 42% saturation and 68% lightness, which reads as cool.

What is the RGB value of #8acfbc?

rgb(138, 207, 188) — 138 red, 207 green and 188 blue out of 255, or 54.1% / 81.2% / 73.7% by channel.

What is #8acfbc in HSL and HSV?

hsl(164, 42%, 68%) and hsv(163, 33%, 81%). HSL is what CSS takes; HSV is what your design tool's picker shows, which is why the saturation numbers rarely match.

Is #8acfbc a light or a dark color?

It is a light color. Relative luminance is 0.5366 and perceived brightness is 73%, so black text on it reaches 11.73:1.

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

Black. It scores 11.73:1 against #8acfbc, versus 1.79:1 for white — AAA at any size.

Is #8acfbc accessible on a white background?

#8acfbc on white scores 1.79:1, which fails WCAG AA at every size. Darken it to #35816C to reach 4.5:1, or #276051 for 7:1.

What is the complementary color of #8acfbc?

#CF8A9D sits directly opposite on the wheel. Softer options are the split-complements #CF8ABF and #CF998A, which give the same contrast with far less vibration.

What colors go well with #8acfbc?

For interface work: #F4FAF9 as the surface, #C5E7DE for borders, #4B9B85 for secondary text, #943868 as an accent and #255A4C for hover and pressed states. For a palette, the analogous pair #8ACF99 and #8ABFCF stays calm, while #CF8A9D is the loudest partner.

What is #8acfbc in CMYK for printing?

cmyk(33%, 0%, 9%, 19%). This is a screen-to-ink approximation — ask your printer for a proof before committing to a run.

Is #8acfbc warm or cool?

Cool — it scores 81 on a scale where 0 is the warmest orange and 100 the coolest azure. Nudged warmer it becomes #8ACFA3; nudged cooler, #88CAD1.

Which Tailwind color is closest to #8acfbc?

The teal family — its 500 step is #14b8a6, ΔE2000 10.8 away. That is a visible difference, so define #8acfbc as a custom token rather than reaching for the built-in.

How do I use #8acfbc in Tailwind CSS?

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

rgba(138, 207, 188, 0.5), or #8acfbc80 in eight-digit hex. Over white that composites to #C5E7DE; over black, #45685E.

Is #8acfbc a web-safe color?

No. The nearest web-safe colour is #99CCCC, ΔE2000 8.1 away. The palette only matters for legacy displays and some email clients now.

What does the color #8acfbc mean?

As a cyan, it reads clean, technical, fresh. Cyan reads as water, air and infrastructure: cool, hygienic, engineered. At this moderate chroma the association is present but not shouted.

What gradient works with #8acfbc?

The safest is same-hue elevation: linear-gradient(135deg, #B5E1D5, #8acfbc 45%, #255A4C). For more colour, a short hue run to #749FC6 keeps it rich without turning muddy.

Work with #8acfbc in the Color Lab

Every tool opens with this colour already loaded.

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