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#2db2c5

a balanced, vivid cyan · cool · closest name: Cadet Blue

RGB
45, 178, 197
HSL
188°, 63%, 48%
CMYK
77, 10, 0, 23
Luminance
0.3643

At a glance

Every number on this page in one read: what #2db2c5 is made of, how bright it looks, and which way it leans.

Hex
#2db2c5
Hue
188°
cyan
Saturation
63%
vivid
Lightness
48%
balanced
Brightness
77%
HSV value
Perceived
60%
weighted brightness
Luminance
0.3643
WCAG relative
Temperature
Cool
91/100 cool
Color family
Cyan
Tone
Vivid
Best ink
Black
8.29:1
Closest name
Cadet Blue
ΔE2000 8.8
Where it sits
Hue188° of 360°
Saturation63%
Lightness48%
Temperature
Warm ← → Cool91% 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#2db2c5
RGBrgb(45, 178, 197)
HSLhsl(188, 63%, 48%)
CMYKcmyk(77%, 10%, 0%, 23%)
LABlab(66.8 -28.1 -19.7)
LCHlch(66.8 34.3 215.0)
OKLCHoklch(0.703 0.112 209.4)
Decimal2994885
Display P3color(display-p3 0.176 0.698 0.773)

Copy-ready code

/* CSS */
color: #2db2c5;
background-color: #2db2c5;
/* Tailwind (arbitrary) */
class="text-[#2db2c5] bg-[#2db2c5]"
/* SCSS */
$brand: #2db2c5;
/* SwiftUI */
Color(red: 0.176, green: 0.698, blue: 0.773)
/* Android */
Color.parseColor("#2db2c5")
/* Flutter */
Color(0xFF2DB2C5)
/* Python / OpenCV (BGR) */
(197, 178, 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 #2db2c5 · 8.29:1
Use #000000AAA at every size.
Aa
White text · 2.53:1
AA fail · AA large fail · AAA fail
Aa
Black text · 8.29:1 · recommended
AA pass · AA large pass · AAA pass
Reading the other direction: #2db2c5 as text scores 2.53:1 on white and 8.29:1 on black.

Accessibility — WCAG contrast

Aa
#2db2c5 on white: 2.53:1
AA ✗ fail · AA-large · AAA
Aa
#2db2c5 on black: 8.29:1
AA ✓ pass · AA-large · AAA
true color
protanopia · #A1ABC6
deuteranopia · #8D9CC5
tritanopia · #00BBB8

Color scale — 50 to 950

A Tailwind-shaped ramp built around this exact hex. #2db2c5 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.

#F4FAFB
#E8F5F7
#CCECF0
#A4E1EA
#76D2E0
#48C4D5
#2db2c5
#2696A6
#1E7885
#1A5861
#10373C
Base = 600Lightest = 50 · #F4FAFBDarkest = 950 · #10373C
:root {
  --brand-50: #F4FAFB;
  --brand-100: #E8F5F7;
  --brand-200: #CCECF0;
  --brand-300: #A4E1EA;
  --brand-400: #76D2E0;
  --brand-500: #48C4D5;
  --brand-600: #2db2c5;
  --brand-700: #2696A6;
  --brand-800: #1E7885;
  --brand-900: #1A5861;
  --brand-950: #10373C;
  --brand: #2db2c5;
  --brand-ink: #000000;
}

Colors that work with #2db2c5

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#C0E7ED
Hairlines and dividers
Muted text#4B919B
Captions on the surface
Accent#CA283C
Second voice, not a rival
Dark variant#185E68
Hover, pressed, headers
Light variant#EAF8FA
Selected rows, tints
Dark surface#142224
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 #2db2c5

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#C5402D
Analogous left#2DC58C
Analogous right#2D66C5
Split-complement 1#C52D66
Split-complement 2#C58C2D
Triadic 1#C52DB2
Triadic 2#B2C52D
Tetradic#8C2DC5

RGB percentages

Red17.6%
Green69.8%
Blue77.3%

CMYK percentages

Cyan77.2%
Magenta9.6%
Yellow0.0%
Key (black)22.7%

Color previews

#2db2c5 text on a black background

contrast 8.29:1

Card sample

#2db2c5 text on a white background

contrast 2.53:1

Card sample

CSS3 live lab

Text font color

The quick brown fox

color: #2db2c5;
Background color
Panel with #2db2c5 background
background-color: #2db2c5;
Text shadow — hex

Glowing headline

text-shadow: 2px 2px 8px #2db2c5;
Text shadow — RGB

Soft neon halo

text-shadow: 0 0 14px rgba(45, 178, 197, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(45, 178, 197, 0.45);
Border & gradient
Gradient panel
border: 3px solid #2db2c5;
background: linear-gradient(135deg, #2db2c5, #2D4DC5);

Monochromatic scale

Palettes built from #2db2c5

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.

#2db2c5 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.

#2db2c5, answered

What color is #2db2c5?

#2db2c5 is a balanced vivid cyan, closest to Cadet Blue (ΔE2000 8.8). It sits at 188° on the hue wheel with 63% saturation and 48% lightness, which reads as cool.

What is the RGB value of #2db2c5?

rgb(45, 178, 197) — 45 red, 178 green and 197 blue out of 255, or 17.6% / 69.8% / 77.3% by channel.

Is #2db2c5 a light or a dark color?

It is a mid-tone. Relative luminance is 0.3643 and perceived brightness is 60%, so black text on it reaches 8.29:1.

Should I use black or white text on #2db2c5?

Black. It scores 8.29:1 against #2db2c5, versus 2.53:1 for white — AAA at any size.

What is the complementary color of #2db2c5?

#C5402D sits directly opposite on the wheel. Softer options are the split-complements #C52D66 and #C58C2D, which give the same contrast with far less vibration.

What colors go well with #2db2c5?

For interface work: #F4FAFA as the surface, #C0E7ED for borders, #4B919B for secondary text, #CA283C as an accent and #185E68 for hover and pressed states. For a palette, the analogous pair #2DC58C and #2D66C5 stays calm, while #C5402D is the loudest partner.

What is #2db2c5 in CMYK for printing?

cmyk(77%, 10%, 0%, 23%). This is a screen-to-ink approximation — ask your printer for a proof before committing to a run.

Is #2db2c5 warm or cool?

Cool — it scores 91 on a scale where 0 is the warmest orange and 100 the coolest azure. Nudged warmer it becomes #2DC5A0; nudged cooler, #2B91C8.

Work with #2db2c5 in the Color Lab