Skip to content

#4ebfaf

a balanced, vivid cyan · cool · closest name: Light Sea Green

RGB
78, 191, 175
HSL
172°, 47%, 53%
CMYK
59, 0, 8, 25
Luminance
0.4198

At a glance

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

Hex
#4ebfaf
Hue
172°
cyan
Saturation
47%
vivid
Lightness
53%
balanced
Brightness
75%
HSV value
Perceived
64%
weighted brightness
Luminance
0.4198
WCAG relative
Temperature
Cool
84/100 cool
Color family
Cyan
Tone
Vivid
Best ink
Black
9.40:1
Closest name
Light Sea Green
ΔE2000 5.1
Where it sits
Hue172° of 360°
Saturation47%
Lightness53%
Temperature
Warm ← → Cool84% 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#4ebfaf
RGBrgb(78, 191, 175)
HSLhsl(172, 47%, 53%)
CMYKcmyk(59%, 0%, 8%, 25%)
LABlab(70.8 -35.8 -1.5)
LCHlch(70.8 35.8 182.4)
OKLCHoklch(0.736 0.105 182.5)
Decimal5160879
Display P3color(display-p3 0.306 0.749 0.686)

Copy-ready code

/* CSS */
color: #4ebfaf;
background-color: #4ebfaf;
/* Tailwind (arbitrary) */
class="text-[#4ebfaf] bg-[#4ebfaf]"
/* SCSS */
$brand: #4ebfaf;
/* SwiftUI */
Color(red: 0.306, green: 0.749, blue: 0.686)
/* Android */
Color.parseColor("#4ebfaf")
/* Flutter */
Color(0xFF4EBFAF)
/* Python / OpenCV (BGR) */
(175, 191, 78)

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 #4ebfaf · 9.40:1
Use #000000AAA at every size.
Aa
White text · 2.24:1
AA fail · AA large fail · AAA fail
Aa
Black text · 9.40:1 · recommended
AA pass · AA large pass · AAA pass
Reading the other direction: #4ebfaf as text scores 2.24:1 on white and 9.40:1 on black.

Accessibility — WCAG contrast

Aa
#4ebfaf on white: 2.24:1
AA ✗ fail · AA-large · AAA
Aa
#4ebfaf on black: 9.40:1
AA ✓ pass · AA-large · AAA
true color
protanopia · #B7B5AE
deuteranopia · #A5A8B0
tritanopia · #00C2BA

Color scale — 50 to 950

A Tailwind-shaped ramp built around this exact hex. #4ebfaf 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.

#F5FAF9
#EAF5F4
#D0ECE8
#ADE1DA
#83D2C7
#4ebfaf
#41B4A4
#369688
#2B786D
#235850
#163732
Base = 500Lightest = 50 · #F5FAF9Darkest = 950 · #163732
:root {
  --brand-50: #F5FAF9;
  --brand-100: #EAF5F4;
  --brand-200: #D0ECE8;
  --brand-300: #ADE1DA;
  --brand-400: #83D2C7;
  --brand-500: #4ebfaf;
  --brand-600: #41B4A4;
  --brand-700: #369688;
  --brand-800: #2B786D;
  --brand-900: #235850;
  --brand-950: #163732;
  --brand: #4ebfaf;
  --brand-ink: #000000;
}

Colors that work with #4ebfaf

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#C3E9E4
Hairlines and dividers
Muted text#4B9B90
Captions on the surface
Accent#C44979
Second voice, not a rival
Dark variant#225E55
Hover, pressed, headers
Light variant#ECF8F7
Selected rows, tints
Dark surface#142422
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 #4ebfaf

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#BF4E5E
Analogous left#4EBF76
Analogous right#4E96BF
Split-complement 1#BF4E96
Split-complement 2#BF764E
Triadic 1#AF4EBF
Triadic 2#BFAF4E
Tetradic#764EBF

RGB percentages

Red30.6%
Green74.9%
Blue68.6%

CMYK percentages

Cyan59.2%
Magenta0.0%
Yellow8.4%
Key (black)25.1%

Color previews

#4ebfaf text on a black background

contrast 9.40:1

Card sample

#4ebfaf text on a white background

contrast 2.24:1

Card sample

CSS3 live lab

Text font color

The quick brown fox

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

Glowing headline

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

Soft neon halo

text-shadow: 0 0 14px rgba(78, 191, 175, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(78, 191, 175, 0.45);
Border & gradient
Gradient panel
border: 3px solid #4ebfaf;
background: linear-gradient(135deg, #4ebfaf, #4E84BF);

Monochromatic scale

Palettes built from #4ebfaf

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.

#4ebfaf 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.

#4ebfaf, answered

What color is #4ebfaf?

#4ebfaf is a balanced vivid cyan, closest to Light Sea Green (ΔE2000 5.1). It sits at 172° on the hue wheel with 47% saturation and 53% lightness, which reads as cool.

What is the RGB value of #4ebfaf?

rgb(78, 191, 175) — 78 red, 191 green and 175 blue out of 255, or 30.6% / 74.9% / 68.6% by channel.

Is #4ebfaf a light or a dark color?

It is a mid-tone. Relative luminance is 0.4198 and perceived brightness is 64%, so black text on it reaches 9.40:1.

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

Black. It scores 9.40:1 against #4ebfaf, versus 2.24:1 for white — AAA at any size.

What is the complementary color of #4ebfaf?

#BF4E5E sits directly opposite on the wheel. Softer options are the split-complements #BF4E96 and #BF764E, which give the same contrast with far less vibration.

What colors go well with #4ebfaf?

For interface work: #F4FAFA as the surface, #C3E9E4 for borders, #4B9B90 for secondary text, #C44979 as an accent and #225E55 for hover and pressed states. For a palette, the analogous pair #4EBF76 and #4E96BF stays calm, while #BF4E5E is the loudest partner.

What is #4ebfaf in CMYK for printing?

cmyk(59%, 0%, 8%, 25%). This is a screen-to-ink approximation — ask your printer for a proof before committing to a run.

Is #4ebfaf warm or cool?

Cool — it scores 84 on a scale where 0 is the warmest orange and 100 the coolest azure. Nudged warmer it becomes #4EBF85; nudged cooler, #4BA7C1.

Work with #4ebfaf in the Color Lab