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#4fd7da

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

RGB
79, 215, 218
HSL
181°, 65%, 58%
CMYK
64, 1, 0, 15
Luminance
0.5533

At a glance

Every number on this page in one read: what #4fd7da is made of, how bright it looks, and which way it leans.

Hex
#4fd7da
Hue
181°
cyan
Saturation
65%
vivid
Lightness
58%
balanced
Brightness
85%
HSV value
Perceived
73%
weighted brightness
Luminance
0.5533
WCAG relative
Temperature
Cool
88/100 cool
Color family
Cyan
Tone
Vivid
Best ink
Black
12.07:1
Closest name
Medium Turquoise
ΔE2000 3.3
Where it sits
Hue181° of 360°
Saturation65%
Lightness58%
Temperature
Warm ← → Cool88% 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#4fd7da
RGBrgb(79, 215, 218)
HSLhsl(181, 65%, 58%)
CMYKcmyk(64%, 1%, 0%, 15%)
LABlab(79.2 -35.2 -12.3)
LCHlch(79.2 37.3 199.3)
OKLCHoklch(0.808 0.116 197.2)
Decimal5232602
Display P3color(display-p3 0.310 0.843 0.855)

Copy-ready code

/* CSS */
color: #4fd7da;
background-color: #4fd7da;
/* Tailwind (arbitrary) */
class="text-[#4fd7da] bg-[#4fd7da]"
/* SCSS */
$brand: #4fd7da;
/* SwiftUI */
Color(red: 0.310, green: 0.843, blue: 0.855)
/* Android */
Color.parseColor("#4fd7da")
/* Flutter */
Color(0xFF4FD7DA)
/* Python / OpenCV (BGR) */
(218, 215, 79)

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 #4fd7da · 12.07:1
Use #000000AAA at every size.
Aa
White text · 1.74:1
AA fail · AA large fail · AAA fail
Aa
Black text · 12.07:1 · recommended
AA pass · AA large pass · AAA pass
Reading the other direction: #4fd7da as text scores 1.74:1 on white and 12.07:1 on black.

Accessibility — WCAG contrast

Aa
#4fd7da on white: 1.74:1
AA ✗ fail · AA-large · AAA
Aa
#4fd7da on black: 12.07:1
AA ✓ pass · AA-large · AAA
true color
protanopia · #C9CDDA
deuteranopia · #B4BEDB
tritanopia · #00DED8

Color scale — 50 to 950

A Tailwind-shaped ramp built around this exact hex. #4fd7da is pinned to step 500; the rest hold its hue and let saturation ease off at the extremes so the pale end never turns neon.

#F3FBFB
#E8F7F7
#CBF0F1
#A2EAEC
#74DFE2
#4fd7da
#2AC7CA
#23A6A9
#1C8587
#186062
#0F3C3D
Base = 500Lightest = 50 · #F3FBFBDarkest = 950 · #0F3C3D
:root {
  --brand-50: #F3FBFB;
  --brand-100: #E8F7F7;
  --brand-200: #CBF0F1;
  --brand-300: #A2EAEC;
  --brand-400: #74DFE2;
  --brand-500: #4fd7da;
  --brand-600: #2AC7CA;
  --brand-700: #23A6A9;
  --brand-800: #1C8587;
  --brand-900: #186062;
  --brand-950: #0F3C3D;
  --brand: #4fd7da;
  --brand-ink: #000000;
}

Colors that work with #4fd7da

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#C0ECED
Hairlines and dividers
Muted text#4B999B
Captions on the surface
Accent#DE4B6C
Second voice, not a rival
Dark variant#166869
Hover, pressed, headers
Light variant#EAFAFB
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 #4fd7da

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#DA524F
Analogous left#4FDA97
Analogous right#4F91DA
Split-complement 1#DA4F91
Split-complement 2#DA974F
Triadic 1#DA4FD7
Triadic 2#D7DA4F
Tetradic#974FDA

RGB percentages

Red31.0%
Green84.3%
Blue85.5%

CMYK percentages

Cyan63.8%
Magenta1.4%
Yellow0.0%
Key (black)14.5%

Color previews

#4fd7da text on a black background

contrast 12.07:1

Card sample

#4fd7da text on a white background

contrast 1.74:1

Card sample

CSS3 live lab

Text font color

The quick brown fox

color: #4fd7da;
Background color
Panel with #4fd7da background
background-color: #4fd7da;
Text shadow — hex

Glowing headline

text-shadow: 2px 2px 8px #4fd7da;
Text shadow — RGB

Soft neon halo

text-shadow: 0 0 14px rgba(79, 215, 218, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(79, 215, 218, 0.45);
Border & gradient
Gradient panel
border: 3px solid #4fd7da;
background: linear-gradient(135deg, #4fd7da, #4F7ADA);

Monochromatic scale

Palettes built from #4fd7da

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.

#4fd7da 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.

#4fd7da, answered

What color is #4fd7da?

#4fd7da is a balanced vivid cyan, closest to Medium Turquoise (ΔE2000 3.3). It sits at 181° on the hue wheel with 65% saturation and 58% lightness, which reads as cool.

What is the RGB value of #4fd7da?

rgb(79, 215, 218) — 79 red, 215 green and 218 blue out of 255, or 31% / 84.3% / 85.5% by channel.

Is #4fd7da a light or a dark color?

It is a light color. Relative luminance is 0.5533 and perceived brightness is 73%, so black text on it reaches 12.07:1.

Should I use black or white text on #4fd7da?

Black. It scores 12.07:1 against #4fd7da, versus 1.74:1 for white — AAA at any size.

What is the complementary color of #4fd7da?

#DA524F sits directly opposite on the wheel. Softer options are the split-complements #DA4F91 and #DA974F, which give the same contrast with far less vibration.

What colors go well with #4fd7da?

For interface work: #F4FAFA as the surface, #C0ECED for borders, #4B999B for secondary text, #DE4B6C as an accent and #166869 for hover and pressed states. For a palette, the analogous pair #4FDA97 and #4F91DA stays calm, while #DA524F is the loudest partner.

What is #4fd7da in CMYK for printing?

cmyk(64%, 1%, 0%, 15%). This is a screen-to-ink approximation — ask your printer for a proof before committing to a run.

Is #4fd7da warm or cool?

Cool — it scores 88 on a scale where 0 is the warmest orange and 100 the coolest azure. Nudged warmer it becomes #4FDAAA; nudged cooler, #4DAFDC.

Work with #4fd7da in the Color Lab