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#2fd4ad

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

RGB
47, 212, 173
HSL
166°, 66%, 51%
CMYK
78, 0, 18, 17
Luminance
0.5071

At a glance

Every number on this page in one read: what #2fd4ad is made of, how bright it looks, and which way it leans.

Hex
#2fd4ad
Hue
166°
cyan
Saturation
66%
vivid
Lightness
51%
balanced
Brightness
83%
HSV value
Perceived
68%
weighted brightness
Luminance
0.5071
WCAG relative
Temperature
Cool
82/100 cool
Color family
Cyan
Tone
Vivid
Best ink
Black
11.14:1
Closest name
Medium Aqua Marine
ΔE2000 4.1
Where it sits
Hue166° of 360°
Saturation66%
Lightness51%
Temperature
Warm ← → Cool82% 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#2fd4ad
RGBrgb(47, 212, 173)
HSLhsl(166, 66%, 51%)
CMYKcmyk(78%, 0%, 18%, 17%)
LABlab(76.5 -50.0 7.7)
LCHlch(76.5 50.5 171.3)
OKLCHoklch(0.780 0.141 172.1)
Decimal3134637
Display P3color(display-p3 0.184 0.831 0.678)

Copy-ready code

/* CSS */
color: #2fd4ad;
background-color: #2fd4ad;
/* Tailwind (arbitrary) */
class="text-[#2fd4ad] bg-[#2fd4ad]"
/* SCSS */
$brand: #2fd4ad;
/* SwiftUI */
Color(red: 0.184, green: 0.831, blue: 0.678)
/* Android */
Color.parseColor("#2fd4ad")
/* Flutter */
Color(0xFF2FD4AD)
/* Python / OpenCV (BGR) */
(173, 212, 47)

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 #2fd4ad · 11.14:1
Use #000000AAA at every size.
Aa
White text · 1.88:1
AA fail · AA large fail · AAA fail
Aa
Black text · 11.14:1 · recommended
AA pass · AA large pass · AAA pass
Reading the other direction: #2fd4ad as text scores 1.88:1 on white and 11.14:1 on black.

Accessibility — WCAG contrast

Aa
#2fd4ad on white: 1.88:1
AA ✗ fail · AA-large · AAA
Aa
#2fd4ad on black: 11.14:1
AA ✓ pass · AA-large · AAA
true color
protanopia · #CDC6AB
deuteranopia · #B8B6B0
tritanopia · #00D6C9

Color scale — 50 to 950

A Tailwind-shaped ramp built around this exact hex. #2fd4ad 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.

#F3FBF9
#E8F8F4
#CBF1E8
#A2ECDA
#74E2C8
#45D9B6
#2fd4ad
#23A989
#1C876E
#186251
#0F3D32
Base = 600Lightest = 50 · #F3FBF9Darkest = 950 · #0F3D32
:root {
  --brand-50: #F3FBF9;
  --brand-100: #E8F8F4;
  --brand-200: #CBF1E8;
  --brand-300: #A2ECDA;
  --brand-400: #74E2C8;
  --brand-500: #45D9B6;
  --brand-600: #2fd4ad;
  --brand-700: #23A989;
  --brand-800: #1C876E;
  --brand-900: #186251;
  --brand-950: #0F3D32;
  --brand: #2fd4ad;
  --brand-ink: #000000;
}

Colors that work with #2fd4ad

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#C0EDE2
Hairlines and dividers
Muted text#4B9B88
Captions on the surface
Accent#D92A7F
Second voice, not a rival
Dark variant#166A56
Hover, pressed, headers
Light variant#EAFBF7
Selected rows, tints
Dark surface#142420
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 #2fd4ad

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#D42F56
Analogous left#2FD45B
Analogous right#2FA9D4
Split-complement 1#D42FA9
Split-complement 2#D45B2F
Triadic 1#AD2FD4
Triadic 2#D4AD2F
Tetradic#5B2FD4

RGB percentages

Red18.4%
Green83.1%
Blue67.8%

CMYK percentages

Cyan77.8%
Magenta0.0%
Yellow18.4%
Key (black)16.9%

Color previews

#2fd4ad text on a black background

contrast 11.14:1

Card sample

#2fd4ad text on a white background

contrast 1.88:1

Card sample

CSS3 live lab

Text font color

The quick brown fox

color: #2fd4ad;
Background color
Panel with #2fd4ad background
background-color: #2fd4ad;
Text shadow — hex

Glowing headline

text-shadow: 2px 2px 8px #2fd4ad;
Text shadow — RGB

Soft neon halo

text-shadow: 0 0 14px rgba(47, 212, 173, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(47, 212, 173, 0.45);
Border & gradient
Gradient panel
border: 3px solid #2fd4ad;
background: linear-gradient(135deg, #2fd4ad, #2F8DD4);

Monochromatic scale

Palettes built from #2fd4ad

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.

#2fd4ad 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.

#2fd4ad, answered

What color is #2fd4ad?

#2fd4ad is a balanced vivid cyan, closest to Medium Aqua Marine (ΔE2000 4.1). It sits at 166° on the hue wheel with 66% saturation and 51% lightness, which reads as cool.

What is the RGB value of #2fd4ad?

rgb(47, 212, 173) — 47 red, 212 green and 173 blue out of 255, or 18.4% / 83.1% / 67.8% by channel.

Is #2fd4ad a light or a dark color?

It is a light color. Relative luminance is 0.5071 and perceived brightness is 68%, so black text on it reaches 11.14:1.

Should I use black or white text on #2fd4ad?

Black. It scores 11.14:1 against #2fd4ad, versus 1.88:1 for white — AAA at any size.

What is the complementary color of #2fd4ad?

#D42F56 sits directly opposite on the wheel. Softer options are the split-complements #D42FA9 and #D45B2F, which give the same contrast with far less vibration.

What colors go well with #2fd4ad?

For interface work: #F4FAF9 as the surface, #C0EDE2 for borders, #4B9B88 for secondary text, #D92A7F as an accent and #166A56 for hover and pressed states. For a palette, the analogous pair #2FD45B and #2FA9D4 stays calm, while #D42F56 is the loudest partner.

What is #2fd4ad in CMYK for printing?

cmyk(78%, 0%, 18%, 17%). This is a screen-to-ink approximation — ask your printer for a proof before committing to a run.

Is #2fd4ad warm or cool?

Cool — it scores 82 on a scale where 0 is the warmest orange and 100 the coolest azure. Nudged warmer it becomes #2FD471; nudged cooler, #2DC0D6.

Work with #2fd4ad in the Color Lab