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cyan · cool

#4cdbcb

a balanced, vivid cyan · cool · closest name: Turquoise

Token name suggestion: Atlas Teal

RGB
76, 219, 203
HSL
173°, 67%, 58%
CMYK
65, 0, 7, 14
Luminance
0.5651

#4cdbcb is a balanced vivid cyan, 173° on the wheel and 85/100 on the cool side. Put black text on it (12.30:1). As text it scores 1.71:1 on white — use #1A8377 instead. Nearest name is Turquoise, nearest Tailwind family is teal.

hsl(173 67% 58%)rgb(76 219 203)Base step 500AAA inkCool

At a glance

Every number on this page in one read: what #4cdbcb is made of, how bright it looks, and which way it leans.

Hex
#4cdbcb
Hue
173°
cyan
Saturation
67%
vivid
Lightness
58%
balanced
Brightness
86%
HSV value
Perceived
73%
weighted brightness
Luminance
0.5651
WCAG relative
Temperature
Cool
85/100 cool
Color family
Cyan
Tone
Vivid
Best ink
Black
12.30:1
Closest name
Turquoise
ΔE2000 1.3
Chroma
41.7
LCH, 0–130ish
OKLCH L
0.811
perceptual lightness
Tailwind
teal
500 · ΔE 9.3
Web-safe
#33CCCC
nearest of 216
Where it sits
Hue173° of 360°
Saturation67%
Lightness58%
Saturation × lightness field

Left edge is grey, right edge is full chroma; top is white, bottom is black. The dot is #4cdbcb.

Temperature
Warm ← → Cool85% 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
Red3%
Green90%
Blue8%

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

Every format

HEX#4cdbcb
HEX (8-digit)#4cdbcbff
RGBrgb(76, 219, 203)
RGBArgba(76, 219, 203, 1)
HSLhsl(173, 67%, 58%)
HSV / HSBhsv(173, 65%, 86%)
HWBhwb(173 30% 14%)
CMYKcmyk(65%, 0%, 7%, 14%)
LABlab(79.9 -41.5 -3.3)
LCHlch(79.9 41.7 184.6)
OKLCHoklch(0.811 0.123 184.5)
XYZ (D65)xyz(39.09, 56.51, 65.34)
Decimal5037003
Display P3color(display-p3 0.298 0.859 0.796)
Web-safe#33CCCC

Copy-ready code

every platformclick to select
/* CSS */
color: #4cdbcb;
background-color: #4cdbcb;
/* CSS custom property */
--brand: #4cdbcb;
/* Tailwind (arbitrary) */
class="text-[#4cdbcb] bg-[#4cdbcb]"
/* SCSS */
$brand: #4cdbcb;
/* SwiftUI */
Color(red: 0.298, green: 0.859, blue: 0.796)
/* UIKit */
UIColor(red: 0.298, green: 0.859, blue: 0.796, alpha: 1)
/* Android XML */
<color name="brand">#4CDBCB</color>
/* Android Compose */
Color(0xFF4CDBCB)
/* Flutter */
Color(0xFF4CDBCB)
/* Python / OpenCV (BGR) */
(203, 219, 76)
/* Python / PIL (RGB) */
(76, 219, 203)
/* Java AWT */
new Color(76, 219, 203)
/* .NET */
Color.FromArgb(255, 76, 219, 203)
/* OpenGL / Unity (0–1) */
(0.2980f, 0.8588f, 0.7961f, 1f)
/* LaTeX */
\definecolor{brand}{RGB}{76,219,203}
modern cssclick to select
/* mix without leaving CSS */
background: color-mix(in oklab, #4cdbcb 85%, white);
border-color: color-mix(in oklab, #4cdbcb 40%, transparent);
/* theme-aware in one line */
color: light-dark(#156A61, #D3EEEB);
/* relative colour syntax */
--hover: hsl(from #4cdbcb 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: #F3FBFA;
  --brand-100: #E8F8F6;
  --brand-200: #CAF1ED;
  --brand-300: #A2ECE4;
  --brand-400: #73E3D6;
  --brand-500: #4cdbcb;
  --brand-600: #29CCBA;
  --brand-700: #22AA9B;
  --brand-800: #1B887C;
  --brand-900: #18635A;
  --brand-950: #0F3E38;
  --brand: #4cdbcb;
  --brand-ink: #000000;
  --brand-surface: #F4FAFA;
  --brand-border: #C0EDE8;
  --brand-hover: #2ED5C2;
  --brand-pressed: #25BAA9;
}
@media (prefers-color-scheme: dark) {
  :root {
    --brand-surface: #142423;
    --brand-ink: #D3EEEB;
  }
}
tailwind.config.jsclick to select
theme: {
  extend: {
    colors: {
      brand: {
        50: '#F3FBFA',
        100: '#E8F8F6',
        200: '#CAF1ED',
        300: '#A2ECE4',
        400: '#73E3D6',
        500: '#4cdbcb',
        600: '#29CCBA',
        700: '#22AA9B',
        800: '#1B887C',
        900: '#18635A',
        950: '#0F3E38',
        DEFAULT: '#4cdbcb',
      },
    },
  },
}
scss mapclick to select
$brand: (
  '50': #F3FBFA,
  '100': #E8F8F6,
  '200': #CAF1ED,
  '300': #A2ECE4,
  '400': #73E3D6,
  '500': #4cdbcb,
  '600': #29CCBA,
  '700': #22AA9B,
  '800': #1B887C,
  '900': #18635A,
  '950': #0F3E38,
);
$brand-base: #4cdbcb;
$brand-ink: #000000;

@function brand($step) { @return map-get($brand, $step); }
w3c design tokens (json)click to select
{
  "color": {
    "brand": {
      "50": { "$value": "#F3FBFA", "$type": "color" },
      "100": { "$value": "#E8F8F6", "$type": "color" },
      "200": { "$value": "#CAF1ED", "$type": "color" },
      "300": { "$value": "#A2ECE4", "$type": "color" },
      "400": { "$value": "#73E3D6", "$type": "color" },
      "500": { "$value": "#4cdbcb", "$type": "color" },
      "600": { "$value": "#29CCBA", "$type": "color" },
      "700": { "$value": "#22AA9B", "$type": "color" },
      "800": { "$value": "#1B887C", "$type": "color" },
      "900": { "$value": "#18635A", "$type": "color" },
      "950": { "$value": "#0F3E38", "$type": "color" }
    },
    "brandInk": { "$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 #4cdbcb · 12.30:1
Use #000000AAA at every size.
Aa
12px
Aa
16px
Aa
24px
Aa
White text · 1.71:1
AA fail · AA large fail · AAA fail
Aa
Black text · 12.30:1 · recommended
AA pass · AA large pass · AAA pass
Reading the other direction: #4cdbcb as text scores 1.71:1 on white and 12.30:1 on black.
Best tinted ink on it, if plain black or white feels flat: #156A61 at 3.77:1.

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
#1A8377 · 4.61:1
AA on white−27% L
#1A8377
The quick fox
#136158 · 7.30:1
AAA on white−35% L
#136158
The quick fox
#4cdbcb · 12.30:1
AA on blackalready passes
#4cdbcb
The quick fox
#4cdbcb · 12.30:1
AAA on blackalready passes
#4cdbcb

Large text — 24px regular or 18.66px bold and above — only needs 3:1, so #21A596 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
#4cdbcb on white: 1.71:1
AA ✗ fail · AA-large · AAA
Aa
#4cdbcb on black: 12.30:1
AA ✓ pass · AA-large · AAA
Against the neutral ladder

Contrast is symmetric, so each row covers both directions: #4cdbcb as text on that neutral, and that neutral as text on #4cdbcb.

NeutralRatioBoth directions
White1.71:1AaAa
Slate 501.63:1AaAa
Slate 1001.56:1AaAa
Slate 2001.38:1AaAa
Slate 3001.15:1AaAa
Slate 4001.50:1AaAa
Slate 5002.79:1AaAa
Slate 6004.44:1AaAa
Slate 7006.07:1AaAa
Slate 8008.57:1AaAa
Slate 90010.46:1AaAa
Black12.30:1AaAa
Colour vision deficiency
true color
protanopia · #D1CFCA
deuteranopia · #BCC0CD
tritanopia · #00E0D6

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. #4cdbcb is pinned to step 500; the rest hold its hue and let saturation ease off at the extremes so the pale end never turns neon.

#F3FBFA
#E8F8F6
#CAF1ED
#A2ECE4
#73E3D6
#4cdbcb
#29CCBA
#22AA9B
#1B887C
#18635A
#0F3E38
Base = 500Lightest = 50 · #F3FBFADarkest = 950 · #0F3E38Text 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 0.031 184.5);
  --brand-100: oklch(0.94 0.049 184.5);
  --brand-200: oklch(0.88 0.074 184.5);
  --brand-300: oklch(0.80 0.096 184.5);
  --brand-400: oklch(0.72 0.113 184.5);
  --brand-500: oklch(0.64 0.123 184.5);
  --brand-600: oklch(0.56 0.123 184.5);
  --brand-700: oklch(0.48 0.116 184.5);
  --brand-800: oklch(0.40 0.103 184.5);
  --brand-900: oklch(0.32 0.086 184.5);
  --brand-950: oklch(0.24 0.068 184.5);
}

Colors that work with #4cdbcb

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#C0EDE8
Hairlines and dividers
Muted text#4B9B92
Captions on the surface
Accent#DF487E
Second voice, not a rival
Dark variant#156A61
Hover, pressed, headers
Light variant#EAFBF9
Selected rows, tints
Dark surface#142423
Dark-mode background
Hover#2ED5C2
One step down in lightness
Pressed#25BAA9
Two steps down
Disabled#C0D7D4
Chroma pulled out
Focus ring#53E8D7
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 #4cdbcb

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
  • Brand accents, badges and data highlights
  • Chart series and data categories
Use with care
  • Text of any size on white — fails WCAG AA
  • Full-page backgrounds — tiring over long sessions
  • 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 #156A61
Safe as a 1px border on white
No — use #21A596

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 mid lightness keeps it versatile in both themes.

Worth knowing

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

Reads as
  • FormalityMedium
  • EnergyMedium-high
  • Weight42/100
  • 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#DB4C5C
Analogous left#4CDB83
Analogous right#4CA3DB
Split-complement 1#DB4CA3
Split-complement 2#DB834C
Triadic 1#CB4CDB
Triadic 2#DBCB4C
Tetradic#834CDB
On the wheel
Base+30°−30°+120°+240°+180°173°

#4cdbcb sits at 173°. Every dot is a harmony position and links to its own page in the table alongside.

RGB percentages

Red29.8%
Green85.9%
Blue79.6%
R · 0–255
76
0x4c
G · 0–255
219
0xdb
B · 0–255
203
0xcb

CMYK percentages

Cyan65.3%
Magenta0.0%
Yellow7.3%
Key (black)14.1%

Total ink coverage is 87%. Most commercial presses cap around 300% — above that, sheets stop drying properly.

Color previews

#4cdbcb text on a black background

contrast 12.30:1

Card sample

#4cdbcb text on a white background

contrast 1.71:1

Card sample

#4cdbcb on grey

1.56:1

#4cdbcb on its own surface

1.62:1

#4cdbcb on its dark surface

9.42:1

CSS3 live lab

Text font color

The quick brown fox

color: #4cdbcb;
Background color
Panel with #4cdbcb background
background-color: #4cdbcb;
Text shadow — hex

Glowing headline

text-shadow: 2px 2px 8px #4cdbcb;
Text shadow — RGB

Soft neon halo

text-shadow: 0 0 14px rgba(76, 219, 203, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(76, 219, 203, 0.45);
Border & gradient
Gradient panel
border: 3px solid #4cdbcb;
background: linear-gradient(135deg, #4cdbcb, #4C8CDB);
Gradient text

Gradient headline

background: linear-gradient(90deg, #4cdbcb, #4C68DB);
-webkit-background-clip: text;
color: transparent;
Focus ring
Focused control
outline: 2px solid #4cdbcb;
outline-offset: 3px;
Underline & caret

Marked up text

text-decoration-color: #4cdbcb;
caret-color: #4cdbcb;
Left rule
Pull quote or callout
border-left: 4px solid #4cdbcb;
Ring + tint
Selected chip
background: #EAFBF9;
box-shadow: inset 0 0 0 2px #4cdbcb;
Conic badge
68%
background: conic-gradient(#4cdbcb 68%, #e2e8f0 0);

Transparency

What each alpha value actually composites to. The top row is #4cdbcb 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(76, 219, 203, 0.5)
rgb(76 219 203 / 50%)
#4cdbcb80
hsl(173 67% 58% / 50%)
color-mix(in srgb, #4cdbcb 50%, transparent)
Alpha8-digit hexFlat on white
10%#4cdbcb1a#EDFBFA
20%#4cdbcb33#DBF8F5
40%#4cdbcb66#B7F1EA
60%#4cdbcb99#94E9E0
80%#4cdbcbcc#70E2D5

Gradients from #4cdbcb

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, #7FE5DA, #4cdbcb 45%, #156A61);
Duotone
A short hue run reads richer than a flat fill
background: linear-gradient(120deg, #4cdbcb, #326DD6);
Complement sweep
Loud — keep it behind large type only
background: linear-gradient(90deg, #4cdbcb, #DB4C5C);
Spotlight
Hero panels and app headers
background: radial-gradient(120% 120% at 20% 0%, #98EAE1 0%, #4cdbcb 45%, #156A61 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%, #76E398 0%, transparent 60%), radial-gradient(55% 55% at 85% 15%, #65A6E0 0%, transparent 60%), radial-gradient(70% 70% at 50% 95%, #156A61 0%, transparent 65%), #4cdbcb;

Monochromatic scale

Palettes built from #4cdbcb

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.

#4cdbcb 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
ButtonsLinksFocus statesCharts
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 12.30:1.

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.

#4cdbcb, answered

What color is #4cdbcb?

#4cdbcb is a balanced vivid cyan, closest to Turquoise (ΔE2000 1.3). It sits at 173° on the hue wheel with 67% saturation and 58% lightness, which reads as cool.

What is the RGB value of #4cdbcb?

rgb(76, 219, 203) — 76 red, 219 green and 203 blue out of 255, or 29.8% / 85.9% / 79.6% by channel.

What is #4cdbcb in HSL and HSV?

hsl(173, 67%, 58%) and hsv(173, 65%, 86%). HSL is what CSS takes; HSV is what your design tool's picker shows, which is why the saturation numbers rarely match.

Is #4cdbcb a light or a dark color?

It is a light color. Relative luminance is 0.5651 and perceived brightness is 73%, so black text on it reaches 12.30:1.

Should I use black or white text on #4cdbcb?

Black. It scores 12.30:1 against #4cdbcb, versus 1.71:1 for white — AAA at any size.

Is #4cdbcb accessible on a white background?

#4cdbcb on white scores 1.71:1, which fails WCAG AA at every size. Darken it to #1A8377 to reach 4.5:1, or #136158 for 7:1.

What is the complementary color of #4cdbcb?

#DB4C5C sits directly opposite on the wheel. Softer options are the split-complements #DB4CA3 and #DB834C, which give the same contrast with far less vibration.

What colors go well with #4cdbcb?

For interface work: #F4FAFA as the surface, #C0EDE8 for borders, #4B9B92 for secondary text, #DF487E as an accent and #156A61 for hover and pressed states. For a palette, the analogous pair #4CDB83 and #4CA3DB stays calm, while #DB4C5C is the loudest partner.

What is #4cdbcb in CMYK for printing?

cmyk(65%, 0%, 7%, 14%). This is a screen-to-ink approximation — ask your printer for a proof before committing to a run.

Is #4cdbcb warm or cool?

Cool — it scores 85 on a scale where 0 is the warmest orange and 100 the coolest azure. Nudged warmer it becomes #4CDB96; nudged cooler, #4AB8DD.

Which Tailwind color is closest to #4cdbcb?

The teal family — its 500 step is #14b8a6, ΔE2000 9.3 away. That is a visible difference, so define #4cdbcb as a custom token rather than reaching for the built-in.

How do I use #4cdbcb in Tailwind CSS?

Inline it as an arbitrary value with bg-[#4cdbcb] or text-[#4cdbcb], 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 #4cdbcb with 50% opacity?

rgba(76, 219, 203, 0.5), or #4cdbcb80 in eight-digit hex. Over white that composites to #A6EDE5; over black, #266E66.

Is #4cdbcb a web-safe color?

No. The nearest web-safe colour is #33CCCC, ΔE2000 6.5 away. The palette only matters for legacy displays and some email clients now.

What does the color #4cdbcb 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 #4cdbcb?

The safest is same-hue elevation: linear-gradient(135deg, #7FE5DA, #4cdbcb 45%, #156A61). For more colour, a short hue run to #326DD6 keeps it rich without turning muddy.

Work with #4cdbcb in the Color Lab

Every tool opens with this colour already loaded.

Every value on this page is computed from #4cdbcb at request time — conversions, contrast ratios and ΔE distances are calculated, never looked up.