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#37cfdb

a balanced, vivid cyan · cool · closest name: turquoise

RGB
55, 207, 219
HSL
184°, 70%, 54%
CMYK
75, 6, 0, 14
Luminance
0.5055

Every format

HEX#37cfdb
RGBrgb(55, 207, 219)
HSLhsl(184, 70%, 54%)
CMYKcmyk(75%, 6%, 0%, 14%)
LABlab(76.4 -34.3 -17.2)
LCHlch(76.4 38.4 206.6)
OKLCHoklch(0.783 0.122 203.0)

Copy-ready code

/* CSS */
color: #37cfdb;
background-color: #37cfdb;
/* Tailwind (arbitrary) */
class="text-[#37cfdb] bg-[#37cfdb]"
/* SCSS */
$brand: #37cfdb;
/* SwiftUI */
Color(red: 0.216, green: 0.812, blue: 0.859)
/* Android */
Color.parseColor("#37cfdb")

Accessibility — WCAG contrast

Aa
#37cfdb on white: 1.89:1
AA ✗ fail · AA-large · AAA
Aa
#37cfdb on black: 11.11:1
AA ✓ pass · AA-large · AAA
true color
protanopia
deuteranopia
tritanopia

RGB percentages

Red21.6%
Green81.2%
Blue85.9%

CMYK percentages

Cyan74.9%
Magenta5.5%
Yellow0.0%
Key (black)14.1%

Color previews

#37cfdb text on a black background

contrast 11.11:1

Card sample

#37cfdb text on a white background

contrast 1.89:1

Card sample

CSS3 live lab

Text font color

The quick brown fox

color: #37cfdb;
Background color
Panel with #37cfdb background
background-color: #37cfdb;
Text shadow — hex

Glowing headline

text-shadow: 2px 2px 8px #37cfdb;
Text shadow — RGB

Soft neon halo

text-shadow: 0 0 14px rgba(55, 207, 219, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(55, 207, 219, 0.45);
Border & gradient
Gradient panel
border: 3px solid #37cfdb;
background: linear-gradient(135deg, #37cfdb, #3762DB);

Monochromatic scale

Palettes built from #37cfdb

Shades — darker

Tints — lighter

Hue & tone neighbors

Color harmonies

Nearest named colors

Work with #37cfdb in the Color Lab