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#39adef

a balanced, electric blue · cool · closest name: steelblue

RGB
57, 173, 239
HSL
202°, 85%, 58%
CMYK
76, 28, 0, 6
Luminance
0.3699

Every format

HEX#39adef
RGBrgb(57, 173, 239)
HSLhsl(202, 85%, 58%)
CMYKcmyk(76%, 28%, 0%, 6%)
LABlab(67.3 -10.3 -42.1)
LCHlch(67.3 43.3 256.2)
OKLCHoklch(0.713 0.139 238.7)

Copy-ready code

/* CSS */
color: #39adef;
background-color: #39adef;
/* Tailwind (arbitrary) */
class="text-[#39adef] bg-[#39adef]"
/* SCSS */
$brand: #39adef;
/* SwiftUI */
Color(red: 0.224, green: 0.678, blue: 0.937)
/* Android */
Color.parseColor("#39adef")

Accessibility — WCAG contrast

Aa
#39adef on white: 2.50:1
AA ✗ fail · AA-large · AAA
Aa
#39adef on black: 8.40:1
AA ✓ pass · AA-large · AAA
true color
protanopia
deuteranopia
tritanopia

RGB percentages

Red22.4%
Green67.8%
Blue93.7%

CMYK percentages

Cyan76.2%
Magenta27.6%
Yellow0.0%
Key (black)6.3%

Color previews

#39adef text on a black background

contrast 8.40:1

Card sample

#39adef text on a white background

contrast 2.50:1

Card sample

CSS3 live lab

Text font color

The quick brown fox

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

Glowing headline

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

Soft neon halo

text-shadow: 0 0 14px rgba(57, 173, 239, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(57, 173, 239, 0.45);
Border & gradient
Gradient panel
border: 3px solid #39adef;
background: linear-gradient(135deg, #39adef, #3E39EF);

Monochromatic scale

Palettes built from #39adef

Shades — darker

Tints — lighter

Hue & tone neighbors

Color harmonies

Nearest named colors

Work with #39adef in the Color Lab