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#2fbb8f

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

RGB
47, 187, 143
HSL
161°, 60%, 46%
CMYK
75, 0, 24, 27
Luminance
0.3813

At a glance

Every number on this page in one read: what #2fbb8f is made of, how bright it looks, and which way it leans.

Hex
#2fbb8f
Hue
161°
cyan
Saturation
60%
vivid
Lightness
46%
balanced
Brightness
73%
HSV value
Perceived
60%
weighted brightness
Luminance
0.3813
WCAG relative
Temperature
Cool
80/100 cool
Color family
Cyan
Tone
Vivid
Best ink
Black
8.63:1
Closest name
Medium Sea Green
ΔE2000 6.3
Where it sits
Hue161° of 360°
Saturation60%
Lightness46%
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#2fbb8f
RGBrgb(47, 187, 143)
HSLhsl(161, 60%, 46%)
CMYKcmyk(75%, 0%, 24%, 27%)
LABlab(68.1 -47.0 11.9)
LCHlch(68.1 48.5 165.7)
OKLCHoklch(0.709 0.133 166.8)
Decimal3128207
Display P3color(display-p3 0.184 0.733 0.561)

Copy-ready code

/* CSS */
color: #2fbb8f;
background-color: #2fbb8f;
/* Tailwind (arbitrary) */
class="text-[#2fbb8f] bg-[#2fbb8f]"
/* SCSS */
$brand: #2fbb8f;
/* SwiftUI */
Color(red: 0.184, green: 0.733, blue: 0.561)
/* Android */
Color.parseColor("#2fbb8f")
/* Flutter */
Color(0xFF2FBB8F)
/* Python / OpenCV (BGR) */
(143, 187, 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 #2fbb8f · 8.63:1
Use #000000AAA at every size.
Aa
White text · 2.43:1
AA fail · AA large fail · AAA fail
Aa
Black text · 8.63:1 · recommended
AA pass · AA large pass · AAA pass
Reading the other direction: #2fbb8f as text scores 2.43:1 on white and 8.63:1 on black.

Accessibility — WCAG contrast

Aa
#2fbb8f on white: 2.43:1
AA ✗ fail · AA-large · AAA
Aa
#2fbb8f on black: 8.63:1
AA ✓ pass · AA-large · AAA
true color
protanopia · #B7AE8D
deuteranopia · #A5A192
tritanopia · #00BCAF

Color scale — 50 to 950

A Tailwind-shaped ramp built around this exact hex. #2fbb8f 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
#E9F7F2
#CCEFE4
#A5E8D3
#79DDBD
#4CD2A8
#2fbb8f
#29A37D
#218264
#1C5F4A
#113B2E
Base = 600Lightest = 50 · #F4FBF9Darkest = 950 · #113B2E
:root {
  --brand-50: #F4FBF9;
  --brand-100: #E9F7F2;
  --brand-200: #CCEFE4;
  --brand-300: #A5E8D3;
  --brand-400: #79DDBD;
  --brand-500: #4CD2A8;
  --brand-600: #2fbb8f;
  --brand-700: #29A37D;
  --brand-800: #218264;
  --brand-900: #1C5F4A;
  --brand-950: #113B2E;
  --brand: #2fbb8f;
  --brand-ink: #000000;
}

Colors that work with #2fbb8f

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#F4FAF8
Tinted page background
Border#C0EDDF
Hairlines and dividers
Muted text#4B9B82
Captions on the surface
Accent#C02A7F
Second voice, not a rival
Dark variant#1A664E
Hover, pressed, headers
Light variant#EBFAF5
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 #2fbb8f

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#BB2F5B
Analogous left#2FBB49
Analogous right#2FA1BB
Split-complement 1#BB2FA1
Split-complement 2#BB492F
Triadic 1#8F2FBB
Triadic 2#BB8F2F
Tetradic#492FBB

RGB percentages

Red18.4%
Green73.3%
Blue56.1%

CMYK percentages

Cyan74.9%
Magenta0.0%
Yellow23.5%
Key (black)26.7%

Color previews

#2fbb8f text on a black background

contrast 8.63:1

Card sample

#2fbb8f text on a white background

contrast 2.43:1

Card sample

CSS3 live lab

Text font color

The quick brown fox

color: #2fbb8f;
Background color
Panel with #2fbb8f background
background-color: #2fbb8f;
Text shadow — hex

Glowing headline

text-shadow: 2px 2px 8px #2fbb8f;
Text shadow — RGB

Soft neon halo

text-shadow: 0 0 14px rgba(47, 187, 143, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(47, 187, 143, 0.45);
Border & gradient
Gradient panel
border: 3px solid #2fbb8f;
background: linear-gradient(135deg, #2fbb8f, #2F8ABB);

Monochromatic scale

Palettes built from #2fbb8f

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.

#2fbb8f 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.

#2fbb8f, answered

What color is #2fbb8f?

#2fbb8f is a balanced vivid cyan, closest to Medium Sea Green (ΔE2000 6.3). It sits at 161° on the hue wheel with 60% saturation and 46% lightness, which reads as cool.

What is the RGB value of #2fbb8f?

rgb(47, 187, 143) — 47 red, 187 green and 143 blue out of 255, or 18.4% / 73.3% / 56.1% by channel.

Is #2fbb8f a light or a dark color?

It is a mid-tone. Relative luminance is 0.3813 and perceived brightness is 60%, so black text on it reaches 8.63:1.

Should I use black or white text on #2fbb8f?

Black. It scores 8.63:1 against #2fbb8f, versus 2.43:1 for white — AAA at any size.

What is the complementary color of #2fbb8f?

#BB2F5B sits directly opposite on the wheel. Softer options are the split-complements #BB2FA1 and #BB492F, which give the same contrast with far less vibration.

What colors go well with #2fbb8f?

For interface work: #F4FAF8 as the surface, #C0EDDF for borders, #4B9B82 for secondary text, #C02A7F as an accent and #1A664E for hover and pressed states. For a palette, the analogous pair #2FBB49 and #2FA1BB stays calm, while #BB2F5B is the loudest partner.

What is #2fbb8f in CMYK for printing?

cmyk(75%, 0%, 24%, 27%). This is a screen-to-ink approximation — ask your printer for a proof before committing to a run.

Is #2fbb8f 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 #2FBB5C; nudged cooler, #2DB6BD.

Work with #2fbb8f in the Color Lab