Skip to content

#2dbabc

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

RGB
45, 186, 188
HSL
181°, 61%, 46%
CMYK
76, 1, 0, 26
Luminance
0.3931

At a glance

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

Hex
#2dbabc
Hue
181°
cyan
Saturation
61%
vivid
Lightness
46%
balanced
Brightness
74%
HSV value
Perceived
62%
weighted brightness
Luminance
0.3931
WCAG relative
Temperature
Cool
88/100 cool
Color family
Cyan
Tone
Vivid
Best ink
Black
8.86:1
Closest name
Light Sea Green
ΔE2000 4.5
Where it sits
Hue181° of 360°
Saturation61%
Lightness46%
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#2dbabc
RGBrgb(45, 186, 188)
HSLhsl(181, 61%, 46%)
CMYKcmyk(76%, 1%, 0%, 26%)
LABlab(69.0 -34.7 -11.5)
LCHlch(69.0 36.6 198.4)
OKLCHoklch(0.720 0.113 196.4)
Decimal2996924
Display P3color(display-p3 0.176 0.729 0.737)

Copy-ready code

/* CSS */
color: #2dbabc;
background-color: #2dbabc;
/* Tailwind (arbitrary) */
class="text-[#2dbabc] bg-[#2dbabc]"
/* SCSS */
$brand: #2dbabc;
/* SwiftUI */
Color(red: 0.176, green: 0.729, blue: 0.737)
/* Android */
Color.parseColor("#2dbabc")
/* Flutter */
Color(0xFF2DBABC)
/* Python / OpenCV (BGR) */
(188, 186, 45)

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 #2dbabc · 8.86:1
Use #000000AAA at every size.
Aa
White text · 2.37:1
AA fail · AA large fail · AAA fail
Aa
Black text · 8.86:1 · recommended
AA pass · AA large pass · AAA pass
Reading the other direction: #2dbabc as text scores 2.37:1 on white and 8.86:1 on black.

Accessibility — WCAG contrast

Aa
#2dbabc on white: 2.37:1
AA ✗ fail · AA-large · AAA
Aa
#2dbabc on black: 8.86:1
AA ✓ pass · AA-large · AAA
true color
protanopia · #ADB1BC
deuteranopia · #99A2BD
tritanopia · #00C0BA

Color scale — 50 to 950

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

#F4FBFB
#E8F7F7
#CCEFF0
#A4E8E9
#77DDDF
#4AD2D4
#2dbabc
#27A3A5
#1F8284
#1B5F60
#113B3C
Base = 600Lightest = 50 · #F4FBFBDarkest = 950 · #113B3C
:root {
  --brand-50: #F4FBFB;
  --brand-100: #E8F7F7;
  --brand-200: #CCEFF0;
  --brand-300: #A4E8E9;
  --brand-400: #77DDDF;
  --brand-500: #4AD2D4;
  --brand-600: #2dbabc;
  --brand-700: #27A3A5;
  --brand-800: #1F8284;
  --brand-900: #1B5F60;
  --brand-950: #113B3C;
  --brand: #2dbabc;
  --brand-ink: #000000;
}

Colors that work with #2dbabc

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#4B9A9B
Captions on the surface
Accent#C1284C
Second voice, not a rival
Dark variant#196667
Hover, pressed, headers
Light variant#EAFAFA
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 #2dbabc

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#BC2F2D
Analogous left#2DBC76
Analogous right#2D73BC
Split-complement 1#BC2D73
Split-complement 2#BC762D
Triadic 1#BC2DBA
Triadic 2#BABC2D
Tetradic#762DBC

RGB percentages

Red17.6%
Green72.9%
Blue73.7%

CMYK percentages

Cyan76.1%
Magenta1.1%
Yellow0.0%
Key (black)26.3%

Color previews

#2dbabc text on a black background

contrast 8.86:1

Card sample

#2dbabc text on a white background

contrast 2.37:1

Card sample

CSS3 live lab

Text font color

The quick brown fox

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

Glowing headline

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

Soft neon halo

text-shadow: 0 0 14px rgba(45, 186, 188, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(45, 186, 188, 0.45);
Border & gradient
Gradient panel
border: 3px solid #2dbabc;
background: linear-gradient(135deg, #2dbabc, #2D5BBC);

Monochromatic scale

Palettes built from #2dbabc

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.

#2dbabc 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.

#2dbabc, answered

What color is #2dbabc?

#2dbabc is a balanced vivid cyan, closest to Light Sea Green (ΔE2000 4.5). It sits at 181° on the hue wheel with 61% saturation and 46% lightness, which reads as cool.

What is the RGB value of #2dbabc?

rgb(45, 186, 188) — 45 red, 186 green and 188 blue out of 255, or 17.6% / 72.9% / 73.7% by channel.

Is #2dbabc a light or a dark color?

It is a mid-tone. Relative luminance is 0.3931 and perceived brightness is 62%, so black text on it reaches 8.86:1.

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

Black. It scores 8.86:1 against #2dbabc, versus 2.37:1 for white — AAA at any size.

What is the complementary color of #2dbabc?

#BC2F2D sits directly opposite on the wheel. Softer options are the split-complements #BC2D73 and #BC762D, which give the same contrast with far less vibration.

What colors go well with #2dbabc?

For interface work: #F4FAFA as the surface, #C0ECED for borders, #4B9A9B for secondary text, #C1284C as an accent and #196667 for hover and pressed states. For a palette, the analogous pair #2DBC76 and #2D73BC stays calm, while #BC2F2D is the loudest partner.

What is #2dbabc in CMYK for printing?

cmyk(76%, 1%, 0%, 26%). This is a screen-to-ink approximation — ask your printer for a proof before committing to a run.

Is #2dbabc 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 #2DBC8A; nudged cooler, #2B91BE.

Work with #2dbabc in the Color Lab