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#3cb396

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

RGB
60, 179, 150
HSL
165°, 50%, 47%
CMYK
67, 0, 16, 30
Luminance
0.3540

At a glance

Every number on this page in one read: what #3cb396 is made of, how bright it looks, and which way it leans.

Hex
#3cb396
Hue
165°
cyan
Saturation
50%
vivid
Lightness
47%
balanced
Brightness
70%
HSV value
Perceived
59%
weighted brightness
Luminance
0.3540
WCAG relative
Temperature
Cool
81/100 cool
Color family
Cyan
Tone
Vivid
Best ink
Black
8.08:1
Closest name
Light Sea Green
ΔE2000 7.4
Where it sits
Hue165° of 360°
Saturation50%
Lightness47%
Temperature
Warm ← → Cool81% 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#3cb396
RGBrgb(60, 179, 150)
HSLhsl(165, 50%, 47%)
CMYKcmyk(67%, 0%, 16%, 30%)
LABlab(66.1 -40.0 5.2)
LCHlch(66.1 40.3 172.6)
OKLCHoklch(0.693 0.114 173.4)
Decimal3978134
Display P3color(display-p3 0.235 0.702 0.588)

Copy-ready code

/* CSS */
color: #3cb396;
background-color: #3cb396;
/* Tailwind (arbitrary) */
class="text-[#3cb396] bg-[#3cb396]"
/* SCSS */
$brand: #3cb396;
/* SwiftUI */
Color(red: 0.235, green: 0.702, blue: 0.588)
/* Android */
Color.parseColor("#3cb396")
/* Flutter */
Color(0xFF3CB396)
/* Python / OpenCV (BGR) */
(150, 179, 60)

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 #3cb396 · 8.08:1
Use #000000AAA at every size.
Aa
White text · 2.60:1
AA fail · AA large fail · AAA fail
Aa
Black text · 8.08:1 · recommended
AA pass · AA large pass · AAA pass
Reading the other direction: #3cb396 as text scores 2.60:1 on white and 8.08:1 on black.

Accessibility — WCAG contrast

Aa
#3cb396 on white: 2.60:1
AA ✗ fail · AA-large · AAA
Aa
#3cb396 on black: 8.08:1
AA ✓ pass · AA-large · AAA
true color
protanopia · #ADA895
deuteranopia · #9D9C98
tritanopia · #00B5AA

Color scale — 50 to 950

A Tailwind-shaped ramp built around this exact hex. #3cb396 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.

#F4FAF9
#EAF6F3
#CFECE5
#ABE3D5
#81D5C0
#57C7AB
#3cb396
#339980
#297A66
#21594C
#15382F
Base = 600Lightest = 50 · #F4FAF9Darkest = 950 · #15382F
:root {
  --brand-50: #F4FAF9;
  --brand-100: #EAF6F3;
  --brand-200: #CFECE5;
  --brand-300: #ABE3D5;
  --brand-400: #81D5C0;
  --brand-500: #57C7AB;
  --brand-600: #3cb396;
  --brand-700: #339980;
  --brand-800: #297A66;
  --brand-900: #21594C;
  --brand-950: #15382F;
  --brand: #3cb396;
  --brand-ink: #000000;
}

Colors that work with #3cb396

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#C2EBE1
Hairlines and dividers
Muted text#4B9B87
Captions on the surface
Accent#B83777
Second voice, not a rival
Dark variant#205F50
Hover, pressed, headers
Light variant#ECF9F6
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 #3cb396

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#B33C59
Analogous left#3CB35B
Analogous right#3C95B3
Split-complement 1#B33C95
Split-complement 2#B35B3C
Triadic 1#963CB3
Triadic 2#B3963C
Tetradic#5B3CB3

RGB percentages

Red23.5%
Green70.2%
Blue58.8%

CMYK percentages

Cyan66.5%
Magenta0.0%
Yellow16.2%
Key (black)29.8%

Color previews

#3cb396 text on a black background

contrast 8.08:1

Card sample

#3cb396 text on a white background

contrast 2.60:1

Card sample

CSS3 live lab

Text font color

The quick brown fox

color: #3cb396;
Background color
Panel with #3cb396 background
background-color: #3cb396;
Text shadow — hex

Glowing headline

text-shadow: 2px 2px 8px #3cb396;
Text shadow — RGB

Soft neon halo

text-shadow: 0 0 14px rgba(60, 179, 150, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(60, 179, 150, 0.45);
Border & gradient
Gradient panel
border: 3px solid #3cb396;
background: linear-gradient(135deg, #3cb396, #3C81B3);

Monochromatic scale

Palettes built from #3cb396

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.

#3cb396 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.

#3cb396, answered

What color is #3cb396?

#3cb396 is a balanced vivid cyan, closest to Light Sea Green (ΔE2000 7.4). It sits at 165° on the hue wheel with 50% saturation and 47% lightness, which reads as cool.

What is the RGB value of #3cb396?

rgb(60, 179, 150) — 60 red, 179 green and 150 blue out of 255, or 23.5% / 70.2% / 58.8% by channel.

Is #3cb396 a light or a dark color?

It is a mid-tone. Relative luminance is 0.3540 and perceived brightness is 59%, so black text on it reaches 8.08:1.

Should I use black or white text on #3cb396?

Black. It scores 8.08:1 against #3cb396, versus 2.60:1 for white — AAA at any size.

What is the complementary color of #3cb396?

#B33C59 sits directly opposite on the wheel. Softer options are the split-complements #B33C95 and #B35B3C, which give the same contrast with far less vibration.

What colors go well with #3cb396?

For interface work: #F4FAF9 as the surface, #C2EBE1 for borders, #4B9B87 for secondary text, #B83777 as an accent and #205F50 for hover and pressed states. For a palette, the analogous pair #3CB35B and #3C95B3 stays calm, while #B33C59 is the loudest partner.

What is #3cb396 in CMYK for printing?

cmyk(67%, 0%, 16%, 30%). This is a screen-to-ink approximation — ask your printer for a proof before committing to a run.

Is #3cb396 warm or cool?

Cool — it scores 81 on a scale where 0 is the warmest orange and 100 the coolest azure. Nudged warmer it becomes #3CB36A; nudged cooler, #3AA6B6.

Work with #3cb396 in the Color Lab