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#2dcdc4

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

RGB
45, 205, 196
HSL
177°, 64%, 49%
CMYK
78, 0, 4, 20
Luminance
0.4821

At a glance

Every number on this page in one read: what #2dcdc4 is made of, how bright it looks, and which way it leans.

Hex
#2dcdc4
Hue
177°
cyan
Saturation
64%
vivid
Lightness
49%
balanced
Brightness
80%
HSV value
Perceived
68%
weighted brightness
Luminance
0.4821
WCAG relative
Temperature
Cool
86/100 cool
Color family
Cyan
Tone
Vivid
Best ink
Black
10.64:1
Closest name
Medium Turquoise
ΔE2000 2.3
Where it sits
Hue177° of 360°
Saturation64%
Lightness49%
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.

Every format

HEX#2dcdc4
RGBrgb(45, 205, 196)
HSLhsl(177, 64%, 49%)
CMYKcmyk(78%, 0%, 4%, 20%)
LABlab(75.0 -41.1 -7.0)
LCHlch(75.0 41.7 189.6)
OKLCHoklch(0.769 0.125 189.0)
Decimal3001796
Display P3color(display-p3 0.176 0.804 0.769)

Copy-ready code

/* CSS */
color: #2dcdc4;
background-color: #2dcdc4;
/* Tailwind (arbitrary) */
class="text-[#2dcdc4] bg-[#2dcdc4]"
/* SCSS */
$brand: #2dcdc4;
/* SwiftUI */
Color(red: 0.176, green: 0.804, blue: 0.769)
/* Android */
Color.parseColor("#2dcdc4")
/* Flutter */
Color(0xFF2DCDC4)
/* Python / OpenCV (BGR) */
(196, 205, 45)

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 #2dcdc4 · 10.64:1
Use #000000AAA at every size.
Aa
White text · 1.97:1
AA fail · AA large fail · AAA fail
Aa
Black text · 10.64:1 · recommended
AA pass · AA large pass · AAA pass
Reading the other direction: #2dcdc4 as text scores 1.97:1 on white and 10.64:1 on black.

Accessibility — WCAG contrast

Aa
#2dcdc4 on white: 1.97:1
AA ✗ fail · AA-large · AAA
Aa
#2dcdc4 on black: 10.64:1
AA ✓ pass · AA-large · AAA
true color
protanopia · #C1C2C4
deuteranopia · #ABB2C5
tritanopia · #00D2CA

Color scale — 50 to 950

A Tailwind-shaped ramp built around this exact hex. #2dcdc4 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.

#F4FBFB
#E8F7F6
#CBF1EE
#A3EBE7
#75E1DB
#47D7CE
#2dcdc4
#25A7A0
#1D8680
#19615D
#103D3A
Base = 600Lightest = 50 · #F4FBFBDarkest = 950 · #103D3A
:root {
  --brand-50: #F4FBFB;
  --brand-100: #E8F7F6;
  --brand-200: #CBF1EE;
  --brand-300: #A3EBE7;
  --brand-400: #75E1DB;
  --brand-500: #47D7CE;
  --brand-600: #2dcdc4;
  --brand-700: #25A7A0;
  --brand-800: #1D8680;
  --brand-900: #19615D;
  --brand-950: #103D3A;
  --brand: #2dcdc4;
  --brand-ink: #000000;
}

Colors that work with #2dcdc4

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#4B9B96
Captions on the surface
Accent#D2285C
Second voice, not a rival
Dark variant#176964
Hover, pressed, headers
Light variant#EAFAF9
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 #2dcdc4

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#CD2D36
Analogous left#2DCD74
Analogous right#2D86CD
Split-complement 1#CD2D86
Split-complement 2#CD742D
Triadic 1#C42DCD
Triadic 2#CDC42D
Tetradic#742DCD

RGB percentages

Red17.6%
Green80.4%
Blue76.9%

CMYK percentages

Cyan78.0%
Magenta0.0%
Yellow4.4%
Key (black)19.6%

Color previews

#2dcdc4 text on a black background

contrast 10.64:1

Card sample

#2dcdc4 text on a white background

contrast 1.97:1

Card sample

CSS3 live lab

Text font color

The quick brown fox

color: #2dcdc4;
Background color
Panel with #2dcdc4 background
background-color: #2dcdc4;
Text shadow — hex

Glowing headline

text-shadow: 2px 2px 8px #2dcdc4;
Text shadow — RGB

Soft neon halo

text-shadow: 0 0 14px rgba(45, 205, 196, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(45, 205, 196, 0.45);
Border & gradient
Gradient panel
border: 3px solid #2dcdc4;
background: linear-gradient(135deg, #2dcdc4, #2D6BCD);

Monochromatic scale

Palettes built from #2dcdc4

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.

#2dcdc4 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.

#2dcdc4, answered

What color is #2dcdc4?

#2dcdc4 is a balanced vivid cyan, closest to Medium Turquoise (ΔE2000 2.3). It sits at 177° on the hue wheel with 64% saturation and 49% lightness, which reads as cool.

What is the RGB value of #2dcdc4?

rgb(45, 205, 196) — 45 red, 205 green and 196 blue out of 255, or 17.6% / 80.4% / 76.9% by channel.

Is #2dcdc4 a light or a dark color?

It is a mid-tone. Relative luminance is 0.4821 and perceived brightness is 68%, so black text on it reaches 10.64:1.

Should I use black or white text on #2dcdc4?

Black. It scores 10.64:1 against #2dcdc4, versus 1.97:1 for white — AAA at any size.

What is the complementary color of #2dcdc4?

#CD2D36 sits directly opposite on the wheel. Softer options are the split-complements #CD2D86 and #CD742D, which give the same contrast with far less vibration.

What colors go well with #2dcdc4?

For interface work: #F4FAFA as the surface, #C0EDEA for borders, #4B9B96 for secondary text, #D2285C as an accent and #176964 for hover and pressed states. For a palette, the analogous pair #2DCD74 and #2D86CD stays calm, while #CD2D36 is the loudest partner.

What is #2dcdc4 in CMYK for printing?

cmyk(78%, 0%, 4%, 20%). This is a screen-to-ink approximation — ask your printer for a proof before committing to a run.

Is #2dcdc4 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 #2DCD89; nudged cooler, #2AA3CF.

Work with #2dcdc4 in the Color Lab