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#2ad1cd

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

RGB
42, 209, 205
HSL
179°, 67%, 49%
CMYK
80, 0, 2, 18
Luminance
0.5050

At a glance

Every number on this page in one read: what #2ad1cd is made of, how bright it looks, and which way it leans.

Hex
#2ad1cd
Hue
179°
cyan
Saturation
67%
vivid
Lightness
49%
balanced
Brightness
82%
HSV value
Perceived
69%
weighted brightness
Luminance
0.5050
WCAG relative
Temperature
Cool
87/100 cool
Color family
Cyan
Tone
Vivid
Best ink
Black
11.10:1
Closest name
Medium Turquoise
ΔE2000 1.3
Where it sits
Hue179° of 360°
Saturation67%
Lightness49%
Temperature
Warm ← → Cool87% cool

Reads cool. Warm and cool siblings keep the same lightness, so you can swap one in without redoing your contrast maths.

Every format

HEX#2ad1cd
RGBrgb(42, 209, 205)
HSLhsl(179, 67%, 49%)
CMYKcmyk(80%, 0%, 2%, 18%)
LABlab(76.4 -40.6 -9.7)
LCHlch(76.4 41.7 193.5)
OKLCHoklch(0.781 0.127 192.3)
Decimal2806221
Display P3color(display-p3 0.165 0.820 0.804)

Copy-ready code

/* CSS */
color: #2ad1cd;
background-color: #2ad1cd;
/* Tailwind (arbitrary) */
class="text-[#2ad1cd] bg-[#2ad1cd]"
/* SCSS */
$brand: #2ad1cd;
/* SwiftUI */
Color(red: 0.165, green: 0.820, blue: 0.804)
/* Android */
Color.parseColor("#2ad1cd")
/* Flutter */
Color(0xFF2AD1CD)
/* Python / OpenCV (BGR) */
(205, 209, 42)

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 #2ad1cd · 11.10:1
Use #000000AAA at every size.
Aa
White text · 1.89:1
AA fail · AA large fail · AAA fail
Aa
Black text · 11.10:1 · recommended
AA pass · AA large pass · AAA pass
Reading the other direction: #2ad1cd as text scores 1.89:1 on white and 11.10:1 on black.

Accessibility — WCAG contrast

Aa
#2ad1cd on white: 1.89:1
AA ✗ fail · AA-large · AAA
Aa
#2ad1cd on black: 11.10:1
AA ✓ pass · AA-large · AAA
true color
protanopia · #C4C6CD
deuteranopia · #ADB5CE
tritanopia · #00D7CF

Color scale — 50 to 950

A Tailwind-shaped ramp built around this exact hex. #2ad1cd 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
#E8F8F7
#CAF1F0
#A2ECEA
#73E3E0
#44D9D6
#2ad1cd
#22AAA7
#1B8885
#186361
#0F3E3D
Base = 600Lightest = 50 · #F3FBFBDarkest = 950 · #0F3E3D
:root {
  --brand-50: #F3FBFB;
  --brand-100: #E8F8F7;
  --brand-200: #CAF1F0;
  --brand-300: #A2ECEA;
  --brand-400: #73E3E0;
  --brand-500: #44D9D6;
  --brand-600: #2ad1cd;
  --brand-700: #22AAA7;
  --brand-800: #1B8885;
  --brand-900: #186361;
  --brand-950: #0F3E3D;
  --brand: #2ad1cd;
  --brand-ink: #000000;
}

Colors that work with #2ad1cd

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#C0EDEC
Hairlines and dividers
Muted text#4B9B99
Captions on the surface
Accent#D62555
Second voice, not a rival
Dark variant#156A68
Hover, pressed, headers
Light variant#EAFBFA
Selected rows, tints
Dark surface#142424
Dark-mode background
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

How to use #2ad1cd

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
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

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#D12A2E
Analogous left#2AD17A
Analogous right#2A81D1
Split-complement 1#D12A81
Split-complement 2#D17A2A
Triadic 1#CD2AD1
Triadic 2#D1CD2A
Tetradic#7A2AD1

RGB percentages

Red16.5%
Green82.0%
Blue80.4%

CMYK percentages

Cyan79.9%
Magenta0.0%
Yellow1.9%
Key (black)18.0%

Color previews

#2ad1cd text on a black background

contrast 11.10:1

Card sample

#2ad1cd text on a white background

contrast 1.89:1

Card sample

CSS3 live lab

Text font color

The quick brown fox

color: #2ad1cd;
Background color
Panel with #2ad1cd background
background-color: #2ad1cd;
Text shadow — hex

Glowing headline

text-shadow: 2px 2px 8px #2ad1cd;
Text shadow — RGB

Soft neon halo

text-shadow: 0 0 14px rgba(42, 209, 205, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(42, 209, 205, 0.45);
Border & gradient
Gradient panel
border: 3px solid #2ad1cd;
background: linear-gradient(135deg, #2ad1cd, #2A66D1);

Monochromatic scale

Palettes built from #2ad1cd

Shades — darker

Tints — lighter

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.

#2ad1cd 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.

#2ad1cd, answered

What color is #2ad1cd?

#2ad1cd is a balanced vivid cyan, closest to Medium Turquoise (ΔE2000 1.3). It sits at 179° on the hue wheel with 67% saturation and 49% lightness, which reads as cool.

What is the RGB value of #2ad1cd?

rgb(42, 209, 205) — 42 red, 209 green and 205 blue out of 255, or 16.5% / 82% / 80.4% by channel.

Is #2ad1cd a light or a dark color?

It is a light color. Relative luminance is 0.5050 and perceived brightness is 69%, so black text on it reaches 11.10:1.

Should I use black or white text on #2ad1cd?

Black. It scores 11.10:1 against #2ad1cd, versus 1.89:1 for white — AAA at any size.

What is the complementary color of #2ad1cd?

#D12A2E sits directly opposite on the wheel. Softer options are the split-complements #D12A81 and #D17A2A, which give the same contrast with far less vibration.

What colors go well with #2ad1cd?

For interface work: #F4FAFA as the surface, #C0EDEC for borders, #4B9B99 for secondary text, #D62555 as an accent and #156A68 for hover and pressed states. For a palette, the analogous pair #2AD17A and #2A81D1 stays calm, while #D12A2E is the loudest partner.

What is #2ad1cd in CMYK for printing?

cmyk(80%, 0%, 2%, 18%). This is a screen-to-ink approximation — ask your printer for a proof before committing to a run.

Is #2ad1cd warm or cool?

Cool — it scores 87 on a scale where 0 is the warmest orange and 100 the coolest azure. Nudged warmer it becomes #2AD190; nudged cooler, #28A4D3.

Work with #2ad1cd in the Color Lab