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#2dcd9c

a balanced, vivid cyan · cool · closest name: Medium Aqua Marine

RGB
45, 205, 156
HSL
162°, 64%, 49%
CMYK
78, 0, 24, 20
Luminance
0.4662

At a glance

Every number on this page in one read: what #2dcd9c is made of, how bright it looks, and which way it leans.

Hex
#2dcd9c
Hue
162°
cyan
Saturation
64%
vivid
Lightness
49%
balanced
Brightness
80%
HSV value
Perceived
66%
weighted brightness
Luminance
0.4662
WCAG relative
Temperature
Cool
80/100 cool
Color family
Cyan
Tone
Vivid
Best ink
Black
10.32:1
Closest name
Medium Aqua Marine
ΔE2000 4.8
Where it sits
Hue162° of 360°
Saturation64%
Lightness49%
Temperature
Warm ← → Cool80% 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#2dcd9c
RGBrgb(45, 205, 156)
HSLhsl(162, 64%, 49%)
CMYKcmyk(78%, 0%, 24%, 20%)
LABlab(73.9 -51.4 13.1)
LCHlch(73.9 53.1 165.7)
OKLCHoklch(0.757 0.146 166.7)
Decimal3001756
Display P3color(display-p3 0.176 0.804 0.612)

Copy-ready code

/* CSS */
color: #2dcd9c;
background-color: #2dcd9c;
/* Tailwind (arbitrary) */
class="text-[#2dcd9c] bg-[#2dcd9c]"
/* SCSS */
$brand: #2dcd9c;
/* SwiftUI */
Color(red: 0.176, green: 0.804, blue: 0.612)
/* Android */
Color.parseColor("#2dcd9c")
/* Flutter */
Color(0xFF2DCD9C)
/* Python / OpenCV (BGR) */
(156, 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 #2dcd9c · 10.32:1
Use #000000AAA at every size.
Aa
White text · 2.03:1
AA fail · AA large fail · AAA fail
Aa
Black text · 10.32:1 · recommended
AA pass · AA large pass · AAA pass
Reading the other direction: #2dcd9c as text scores 2.03:1 on white and 10.32:1 on black.

Accessibility — WCAG contrast

Aa
#2dcd9c on white: 2.03:1
AA ✗ fail · AA-large · AAA
Aa
#2dcd9c on black: 10.32:1
AA ✓ pass · AA-large · AAA
true color
protanopia · #C8BE99
deuteranopia · #B5B09F
tritanopia · #00CEBF

Color scale — 50 to 950

A Tailwind-shaped ramp built around this exact hex. #2dcd9c 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.

#F4FBF9
#E8F7F3
#CBF1E5
#A3EBD5
#75E1C0
#47D7AB
#2dcd9c
#25A77F
#1D8666
#19614B
#103D2F
Base = 600Lightest = 50 · #F4FBF9Darkest = 950 · #103D2F
:root {
  --brand-50: #F4FBF9;
  --brand-100: #E8F7F3;
  --brand-200: #CBF1E5;
  --brand-300: #A3EBD5;
  --brand-400: #75E1C0;
  --brand-500: #47D7AB;
  --brand-600: #2dcd9c;
  --brand-700: #25A77F;
  --brand-800: #1D8666;
  --brand-900: #19614B;
  --brand-950: #103D2F;
  --brand: #2dcd9c;
  --brand-ink: #000000;
}

Colors that work with #2dcd9c

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#C0EDDF
Hairlines and dividers
Muted text#4B9B82
Captions on the surface
Accent#D22887
Second voice, not a rival
Dark variant#176950
Hover, pressed, headers
Light variant#EAFAF5
Selected rows, tints
Dark surface#14241F
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 #2dcd9c

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#CD2D5E
Analogous left#2DCD4C
Analogous right#2DAECD
Split-complement 1#CD2DAE
Split-complement 2#CD4C2D
Triadic 1#9C2DCD
Triadic 2#CD9C2D
Tetradic#4C2DCD

RGB percentages

Red17.6%
Green80.4%
Blue61.2%

CMYK percentages

Cyan78.0%
Magenta0.0%
Yellow23.9%
Key (black)19.6%

Color previews

#2dcd9c text on a black background

contrast 10.32:1

Card sample

#2dcd9c text on a white background

contrast 2.03:1

Card sample

CSS3 live lab

Text font color

The quick brown fox

color: #2dcd9c;
Background color
Panel with #2dcd9c background
background-color: #2dcd9c;
Text shadow — hex

Glowing headline

text-shadow: 2px 2px 8px #2dcd9c;
Text shadow — RGB

Soft neon halo

text-shadow: 0 0 14px rgba(45, 205, 156, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(45, 205, 156, 0.45);
Border & gradient
Gradient panel
border: 3px solid #2dcd9c;
background: linear-gradient(135deg, #2dcd9c, #2D93CD);

Monochromatic scale

Palettes built from #2dcd9c

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.

#2dcd9c 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.

#2dcd9c, answered

What color is #2dcd9c?

#2dcd9c is a balanced vivid cyan, closest to Medium Aqua Marine (ΔE2000 4.8). It sits at 162° on the hue wheel with 64% saturation and 49% lightness, which reads as cool.

What is the RGB value of #2dcd9c?

rgb(45, 205, 156) — 45 red, 205 green and 156 blue out of 255, or 17.6% / 80.4% / 61.2% by channel.

Is #2dcd9c a light or a dark color?

It is a mid-tone. Relative luminance is 0.4662 and perceived brightness is 66%, so black text on it reaches 10.32:1.

Should I use black or white text on #2dcd9c?

Black. It scores 10.32:1 against #2dcd9c, versus 2.03:1 for white — AAA at any size.

What is the complementary color of #2dcd9c?

#CD2D5E sits directly opposite on the wheel. Softer options are the split-complements #CD2DAE and #CD4C2D, which give the same contrast with far less vibration.

What colors go well with #2dcd9c?

For interface work: #F4FAF9 as the surface, #C0EDDF for borders, #4B9B82 for secondary text, #D22887 as an accent and #176950 for hover and pressed states. For a palette, the analogous pair #2DCD4C and #2DAECD stays calm, while #CD2D5E is the loudest partner.

What is #2dcd9c in CMYK for printing?

cmyk(78%, 0%, 24%, 20%). This is a screen-to-ink approximation — ask your printer for a proof before committing to a run.

Is #2dcd9c warm or cool?

Cool — it scores 80 on a scale where 0 is the warmest orange and 100 the coolest azure. Nudged warmer it becomes #2DCD61; nudged cooler, #2AC6CF.

Work with #2dcd9c in the Color Lab