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cyan · cool

#2ac6be

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

Token name suggestion: Signal Reef

RGB
42, 198, 190
HSL
177°, 65%, 47%
CMYK
79, 0, 4, 22
Luminance
0.4460

#2ac6be is a balanced vivid cyan, 177° on the wheel and 86/100 on the cool side. Put black text on it (9.92:1). As text it scores 2.12:1 on white — use #1C837E instead. Nearest name is Medium Turquoise, nearest Tailwind family is teal.

hsl(177 65% 47%)rgb(42 198 190)Base step 600AAA inkCool

At a glance

Every number on this page in one read: what #2ac6be is made of, how bright it looks, and which way it leans.

Hex
#2ac6be
Hue
177°
cyan
Saturation
65%
vivid
Lightness
47%
balanced
Brightness
78%
HSV value
Perceived
65%
weighted brightness
Luminance
0.4460
WCAG relative
Temperature
Cool
86/100 cool
Color family
Cyan
Tone
Vivid
Best ink
Black
9.92:1
Closest name
Medium Turquoise
ΔE2000 3.4
Chroma
40.6
LCH, 0–130ish
OKLCH L
0.749
perceptual lightness
Tailwind
teal
500 · ΔE 5.4
Web-safe
#33CCCC
nearest of 216
Where it sits
Hue177° of 360°
Saturation65%
Lightness47%
Saturation × lightness field

Left edge is grey, right edge is full chroma; top is white, bottom is black. The dot is #2ac6be.

Temperature
Warm ← → Cool86% 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
Red1%
Green91%
Blue8%

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

Every format

HEX#2ac6be
HEX (8-digit)#2ac6beff
RGBrgb(42, 198, 190)
RGBArgba(42, 198, 190, 1)
HSLhsl(177, 65%, 47%)
HSV / HSBhsv(177, 79%, 78%)
HWBhwb(177 16% 22%)
CMYKcmyk(79%, 0%, 4%, 22%)
LABlab(72.6 -39.9 -7.2)
LCHlch(72.6 40.6 190.2)
OKLCHoklch(0.749 0.122 189.5)
XYZ (D65)xyz(30.44, 44.59, 55.71)
Decimal2803390
Display P3color(display-p3 0.165 0.776 0.745)
Web-safe#33CCCC

Copy-ready code

every platformclick to select
/* CSS */
color: #2ac6be;
background-color: #2ac6be;
/* CSS custom property */
--brand: #2ac6be;
/* Tailwind (arbitrary) */
class="text-[#2ac6be] bg-[#2ac6be]"
/* SCSS */
$brand: #2ac6be;
/* SwiftUI */
Color(red: 0.165, green: 0.776, blue: 0.745)
/* UIKit */
UIColor(red: 0.165, green: 0.776, blue: 0.745, alpha: 1)
/* Android XML */
<color name="brand">#2AC6BE</color>
/* Android Compose */
Color(0xFF2AC6BE)
/* Flutter */
Color(0xFF2AC6BE)
/* Python / OpenCV (BGR) */
(190, 198, 42)
/* Python / PIL (RGB) */
(42, 198, 190)
/* Java AWT */
new Color(42, 198, 190)
/* .NET */
Color.FromArgb(255, 42, 198, 190)
/* OpenGL / Unity (0–1) */
(0.1647f, 0.7765f, 0.7451f, 1f)
/* LaTeX */
\definecolor{brand}{RGB}{42,198,190}
modern cssclick to select
/* mix without leaving CSS */
background: color-mix(in oklab, #2ac6be 85%, white);
border-color: color-mix(in oklab, #2ac6be 40%, transparent);
/* theme-aware in one line */
color: light-dark(#166965, #D3EEED);
/* relative colour syntax */
--hover: hsl(from #2ac6be 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: #E8F7F7;
  --brand-200: #CBF1EF;
  --brand-300: #A2EBE8;
  --brand-400: #74E2DC;
  --brand-500: #46D8D0;
  --brand-600: #2ac6be;
  --brand-700: #24A8A1;
  --brand-800: #1D8781;
  --brand-900: #19625E;
  --brand-950: #0F3D3B;
  --brand: #2ac6be;
  --brand-ink: #000000;
  --brand-surface: #F4FAFA;
  --brand-border: #C0EDEA;
  --brand-hover: #24A9A2;
  --brand-pressed: #1E8B86;
}
@media (prefers-color-scheme: dark) {
  :root {
    --brand-surface: #142424;
    --brand-ink: #D3EEED;
  }
}
tailwind.config.jsclick to select
theme: {
  extend: {
    colors: {
      brand: {
        50: '#F3FBFB',
        100: '#E8F7F7',
        200: '#CBF1EF',
        300: '#A2EBE8',
        400: '#74E2DC',
        500: '#46D8D0',
        600: '#2ac6be',
        700: '#24A8A1',
        800: '#1D8781',
        900: '#19625E',
        950: '#0F3D3B',
        DEFAULT: '#2ac6be',
      },
    },
  },
}
scss mapclick to select
$brand: (
  '50': #F3FBFB,
  '100': #E8F7F7,
  '200': #CBF1EF,
  '300': #A2EBE8,
  '400': #74E2DC,
  '500': #46D8D0,
  '600': #2ac6be,
  '700': #24A8A1,
  '800': #1D8781,
  '900': #19625E,
  '950': #0F3D3B,
);
$brand-base: #2ac6be;
$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": "#E8F7F7", "$type": "color" },
      "200": { "$value": "#CBF1EF", "$type": "color" },
      "300": { "$value": "#A2EBE8", "$type": "color" },
      "400": { "$value": "#74E2DC", "$type": "color" },
      "500": { "$value": "#46D8D0", "$type": "color" },
      "600": { "$value": "#2ac6be", "$type": "color" },
      "700": { "$value": "#24A8A1", "$type": "color" },
      "800": { "$value": "#1D8781", "$type": "color" },
      "900": { "$value": "#19625E", "$type": "color" },
      "950": { "$value": "#0F3D3B", "$type": "color" }
    },
    "brandInk": { "$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 #2ac6be · 9.92:1
Use #000000AAA at every size.
Aa
12px
Aa
16px
Aa
24px
Aa
White text · 2.12:1
AA fail · AA large fail · AAA fail
Aa
Black text · 9.92:1 · recommended
AA pass · AA large pass · AAA pass
Reading the other direction: #2ac6be as text scores 2.12:1 on white and 9.92:1 on black.
Best tinted ink on it, if plain black or white feels flat: #166965 at 3.06:1.

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
#1C837E · 4.57:1
AA on white−16% L
#1C837E
The quick fox
#15615D · 7.24:1
AAA on white−24% L
#15615D
The quick fox
#2ac6be · 9.92:1
AA on blackalready passes
#2ac6be
The quick fox
#2ac6be · 9.92:1
AAA on blackalready passes
#2ac6be

Large text — 24px regular or 18.66px bold and above — only needs 3:1, so #23A59E 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
#2ac6be on white: 2.12:1
AA ✗ fail · AA-large · AAA
Aa
#2ac6be on black: 9.92:1
AA ✓ pass · AA-large · AAA
Against the neutral ladder

Contrast is symmetric, so each row covers both directions: #2ac6be as text on that neutral, and that neutral as text on #2ac6be.

NeutralRatioBoth directions
White2.12:1AaAa
Slate 502.02:1AaAa
Slate 1001.93:1AaAa
Slate 2001.72:1AaAa
Slate 3001.43:1AaAa
Slate 4001.21:1AaAa
Slate 5002.25:1AaAa
Slate 6003.58:1AaAa
Slate 7004.89:1AaAa
Slate 8006.91:1AaAa
Slate 9008.43:1AaAa
Black9.92:1AaAa
Colour vision deficiency
true color
protanopia · #BABBBE
deuteranopia · #A5ACBF
tritanopia · #00CBC3

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. #2ac6be is pinned to step 600; the rest hold its hue and let saturation ease off at the extremes so the pale end never turns neon.

#F3FBFB
#E8F7F7
#CBF1EF
#A2EBE8
#74E2DC
#46D8D0
#2ac6be
#24A8A1
#1D8781
#19625E
#0F3D3B
Base = 600Lightest = 50 · #F3FBFBDarkest = 950 · #0F3D3BText 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 0.030 189.5);
  --brand-100: oklch(0.94 0.049 189.5);
  --brand-200: oklch(0.88 0.073 189.5);
  --brand-300: oklch(0.80 0.095 189.5);
  --brand-400: oklch(0.72 0.112 189.5);
  --brand-500: oklch(0.64 0.122 189.5);
  --brand-600: oklch(0.56 0.122 189.5);
  --brand-700: oklch(0.48 0.115 189.5);
  --brand-800: oklch(0.40 0.102 189.5);
  --brand-900: oklch(0.32 0.085 189.5);
  --brand-950: oklch(0.24 0.067 189.5);
}

Colors that work with #2ac6be

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#C0EDEA
Hairlines and dividers
Muted text#4B9B97
Captions on the surface
Accent#CB2557
Second voice, not a rival
Dark variant#166965
Hover, pressed, headers
Light variant#EAFBFA
Selected rows, tints
Dark surface#142424
Dark-mode background
Hover#24A9A2
One step down in lightness
Pressed#1E8B86
Two steps down
Disabled#9FC2C0
Chroma pulled out
Focus ring#25E0D6
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 #2ac6be

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 #166965
Safe as a 1px border on white
No — use #23A59E

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
  • Weight53/100
  • 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#C62A32
Analogous left#2AC670
Analogous right#2A80C6
Split-complement 1#C62A80
Split-complement 2#C6702A
Triadic 1#BE2AC6
Triadic 2#C6BE2A
Tetradic#702AC6
On the wheel
Base+30°−30°+120°+240°+180°177°

#2ac6be sits at 177°. Every dot is a harmony position and links to its own page in the table alongside.

RGB percentages

Red16.5%
Green77.6%
Blue74.5%
R · 0–255
42
0x2a
G · 0–255
198
0xc6
B · 0–255
190
0xbe

CMYK percentages

Cyan78.8%
Magenta0.0%
Yellow4.0%
Key (black)22.4%

Total ink coverage is 105%. Most commercial presses cap around 300% — above that, sheets stop drying properly.

Color previews

#2ac6be text on a black background

contrast 9.92:1

Card sample

#2ac6be text on a white background

contrast 2.12:1

Card sample

#2ac6be on grey

1.93:1

#2ac6be on its own surface

2.01:1

#2ac6be on its dark surface

7.59:1

CSS3 live lab

Text font color

The quick brown fox

color: #2ac6be;
Background color
Panel with #2ac6be background
background-color: #2ac6be;
Text shadow — hex

Glowing headline

text-shadow: 2px 2px 8px #2ac6be;
Text shadow — RGB

Soft neon halo

text-shadow: 0 0 14px rgba(42, 198, 190, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(42, 198, 190, 0.45);
Border & gradient
Gradient panel
border: 3px solid #2ac6be;
background: linear-gradient(135deg, #2ac6be, #2A66C6);
Gradient text

Gradient headline

background: linear-gradient(90deg, #2ac6be, #2A3FC6);
-webkit-background-clip: text;
color: transparent;
Focus ring
Focused control
outline: 2px solid #2ac6be;
outline-offset: 3px;
Underline & caret

Marked up text

text-decoration-color: #2ac6be;
caret-color: #2ac6be;
Left rule
Pull quote or callout
border-left: 4px solid #2ac6be;
Ring + tint
Selected chip
background: #EAFBFA;
box-shadow: inset 0 0 0 2px #2ac6be;
Conic badge
68%
background: conic-gradient(#2ac6be 68%, #e2e8f0 0);

Transparency

What each alpha value actually composites to. The top row is #2ac6be 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(42, 198, 190, 0.5)
rgb(42 198 190 / 50%)
#2ac6be80
hsl(177 65% 47% / 50%)
color-mix(in srgb, #2ac6be 50%, transparent)
Alpha8-digit hexFlat on white
10%#2ac6be1a#EAF9F9
20%#2ac6be33#D4F4F2
40%#2ac6be66#AAE8E5
60%#2ac6be99#7FDDD8
80%#2ac6becc#55D1CB

Gradients from #2ac6be

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, #53DAD3, #2ac6be 45%, #166965);
Duotone
A short hue run reads richer than a flat fill
background: linear-gradient(120deg, #2ac6be, #254EAD);
Complement sweep
Loud — keep it behind large type only
background: linear-gradient(90deg, #2ac6be, #C62A32);
Spotlight
Hero panels and app headers
background: radial-gradient(120% 120% at 20% 0%, #6CE0DA 0%, #2ac6be 45%, #166965 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%, #4AD97E 0%, transparent 60%), radial-gradient(55% 55% at 85% 15%, #3A82D5 0%, transparent 60%), radial-gradient(70% 70% at 50% 95%, #166965 0%, transparent 65%), #2ac6be;

Monochromatic scale

Palettes built from #2ac6be

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.

#2ac6be 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 9.92:1.

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.

#2ac6be, answered

What color is #2ac6be?

#2ac6be is a balanced vivid cyan, closest to Medium Turquoise (ΔE2000 3.4). It sits at 177° on the hue wheel with 65% saturation and 47% lightness, which reads as cool.

What is the RGB value of #2ac6be?

rgb(42, 198, 190) — 42 red, 198 green and 190 blue out of 255, or 16.5% / 77.6% / 74.5% by channel.

What is #2ac6be in HSL and HSV?

hsl(177, 65%, 47%) and hsv(177, 79%, 78%). HSL is what CSS takes; HSV is what your design tool's picker shows, which is why the saturation numbers rarely match.

Is #2ac6be a light or a dark color?

It is a mid-tone. Relative luminance is 0.4460 and perceived brightness is 65%, so black text on it reaches 9.92:1.

Should I use black or white text on #2ac6be?

Black. It scores 9.92:1 against #2ac6be, versus 2.12:1 for white — AAA at any size.

Is #2ac6be accessible on a white background?

#2ac6be on white scores 2.12:1, which fails WCAG AA at every size. Darken it to #1C837E to reach 4.5:1, or #15615D for 7:1.

What is the complementary color of #2ac6be?

#C62A32 sits directly opposite on the wheel. Softer options are the split-complements #C62A80 and #C6702A, which give the same contrast with far less vibration.

What colors go well with #2ac6be?

For interface work: #F4FAFA as the surface, #C0EDEA for borders, #4B9B97 for secondary text, #CB2557 as an accent and #166965 for hover and pressed states. For a palette, the analogous pair #2AC670 and #2A80C6 stays calm, while #C62A32 is the loudest partner.

What is #2ac6be in CMYK for printing?

cmyk(79%, 0%, 4%, 22%). This is a screen-to-ink approximation — ask your printer for a proof before committing to a run.

Is #2ac6be warm or cool?

Cool — it scores 86 on a scale where 0 is the warmest orange and 100 the coolest azure. Nudged warmer it becomes #2AC685; nudged cooler, #289CC9.

Which Tailwind color is closest to #2ac6be?

The teal family — its 500 step is #14b8a6, ΔE2000 5.4 away. That is a visible difference, so define #2ac6be as a custom token rather than reaching for the built-in.

How do I use #2ac6be in Tailwind CSS?

Inline it as an arbitrary value with bg-[#2ac6be] or text-[#2ac6be], 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 #2ac6be with 50% opacity?

rgba(42, 198, 190, 0.5), or #2ac6be80 in eight-digit hex. Over white that composites to #95E3DF; over black, #15635F.

Is #2ac6be a web-safe color?

No. The nearest web-safe colour is #33CCCC, ΔE2000 3.4 away. The palette only matters for legacy displays and some email clients now.

What does the color #2ac6be 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 #2ac6be?

The safest is same-hue elevation: linear-gradient(135deg, #53DAD3, #2ac6be 45%, #166965). For more colour, a short hue run to #254EAD keeps it rich without turning muddy.

Work with #2ac6be in the Color Lab

Every tool opens with this colour already loaded.

Every value on this page is computed from #2ac6be at request time — conversions, contrast ratios and ΔE distances are calculated, never looked up.