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#39ffdb

a balanced, electric cyan · cool · closest name: aquamarine

RGB
57, 255, 219
HSL
169°, 100%, 61%
CMYK
78, 0, 14, 0
Luminance
0.7750

Every format

HEX#39ffdb
RGBrgb(57, 255, 219)
HSLhsl(169, 100%, 61%)
CMYKcmyk(78%, 0%, 14%, 0%)
LABlab(90.5 -55.0 3.8)
LCHlch(90.5 55.2 176.1)
OKLCHoklch(0.899 0.157 176.7)

Copy-ready code

/* CSS */
color: #39ffdb;
background-color: #39ffdb;
/* Tailwind (arbitrary) */
class="text-[#39ffdb] bg-[#39ffdb]"
/* SCSS */
$brand: #39ffdb;
/* SwiftUI */
Color(red: 0.224, green: 1.000, blue: 0.859)
/* Android */
Color.parseColor("#39ffdb")

Accessibility — WCAG contrast

Aa
#39ffdb on white: 1.27:1
AA ✗ fail · AA-large · AAA
Aa
#39ffdb on black: 16.50:1
AA ✓ pass · AA-large · AAA
true color
protanopia
deuteranopia
tritanopia

RGB percentages

Red22.4%
Green100.0%
Blue85.9%

CMYK percentages

Cyan77.6%
Magenta0.0%
Yellow14.1%
Key (black)0.0%

Color previews

#39ffdb text on a black background

contrast 16.50:1

Card sample

#39ffdb text on a white background

contrast 1.27:1

Card sample

CSS3 live lab

Text font color

The quick brown fox

color: #39ffdb;
Background color
Panel with #39ffdb background
background-color: #39ffdb;
Text shadow — hex

Glowing headline

text-shadow: 2px 2px 8px #39ffdb;
Text shadow — RGB

Soft neon halo

text-shadow: 0 0 14px rgba(57, 255, 219, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(57, 255, 219, 0.45);
Border & gradient
Gradient panel
border: 3px solid #39ffdb;
background: linear-gradient(135deg, #39ffdb, #399FFF);

Monochromatic scale

Palettes built from #39ffdb

Shades — darker

Tints — lighter

Hue & tone neighbors

Color harmonies

Nearest named colors

Work with #39ffdb in the Color Lab