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#3fee39

a balanced, electric green · cool · closest name: lime

RGB
63, 238, 57
HSL
118°, 84%, 58%
CMYK
74, 0, 76, 7
Luminance
0.6250

Every format

HEX#3fee39
RGBrgb(63, 238, 57)
HSLhsl(118, 84%, 58%)
CMYKcmyk(74%, 0%, 76%, 7%)
LABlab(83.2 -74.8 69.6)
LCHlch(83.2 102.2 137.0)
OKLCHoklch(0.831 0.256 142.5)

Copy-ready code

/* CSS */
color: #3fee39;
background-color: #3fee39;
/* Tailwind (arbitrary) */
class="text-[#3fee39] bg-[#3fee39]"
/* SCSS */
$brand: #3fee39;
/* SwiftUI */
Color(red: 0.247, green: 0.933, blue: 0.224)
/* Android */
Color.parseColor("#3fee39")

Accessibility — WCAG contrast

Aa
#3fee39 on white: 1.56:1
AA ✗ fail · AA-large · AAA
Aa
#3fee39 on black: 13.50:1
AA ✓ pass · AA-large · AAA
true color
protanopia
deuteranopia
tritanopia

RGB percentages

Red24.7%
Green93.3%
Blue22.4%

CMYK percentages

Cyan73.5%
Magenta0.0%
Yellow76.1%
Key (black)6.7%

Color previews

#3fee39 text on a black background

contrast 13.50:1

Card sample

#3fee39 text on a white background

contrast 1.56:1

Card sample

CSS3 live lab

Text font color

The quick brown fox

color: #3fee39;
Background color
Panel with #3fee39 background
background-color: #3fee39;
Text shadow — hex

Glowing headline

text-shadow: 2px 2px 8px #3fee39;
Text shadow — RGB

Soft neon halo

text-shadow: 0 0 14px rgba(63, 238, 57, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(63, 238, 57, 0.45);
Border & gradient
Gradient panel
border: 3px solid #3fee39;
background: linear-gradient(135deg, #3fee39, #39EEAC);

Monochromatic scale

Palettes built from #3fee39

Shades — darker

Tints — lighter

Hue & tone neighbors

Color harmonies

Nearest named colors

Work with #3fee39 in the Color Lab