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#3fad21

a dark, vivid green · cool · closest name: forestgreen

RGB
63, 173, 33
HSL
107°, 68%, 40%
CMYK
64, 0, 81, 32
Luminance
0.3105

Every format

HEX#3fad21
RGBrgb(63, 173, 33)
HSLhsl(107, 68%, 40%)
CMYKcmyk(64%, 0%, 81%, 32%)
LABlab(62.5 -55.4 57.2)
LCHlch(62.5 79.6 134.1)
OKLCHoklch(0.659 0.198 140.2)

Copy-ready code

/* CSS */
color: #3fad21;
background-color: #3fad21;
/* Tailwind (arbitrary) */
class="text-[#3fad21] bg-[#3fad21]"
/* SCSS */
$brand: #3fad21;
/* SwiftUI */
Color(red: 0.247, green: 0.678, blue: 0.129)
/* Android */
Color.parseColor("#3fad21")

Accessibility — WCAG contrast

Aa
#3fad21 on white: 2.91:1
AA ✗ fail · AA-large · AAA
Aa
#3fad21 on black: 7.21:1
AA ✓ pass · AA-large · AAA
true color
protanopia
deuteranopia
tritanopia

RGB percentages

Red24.7%
Green67.8%
Blue12.9%

CMYK percentages

Cyan63.6%
Magenta0.0%
Yellow80.9%
Key (black)32.2%

Color previews

#3fad21 text on a black background

contrast 7.21:1

Card sample

#3fad21 text on a white background

contrast 2.91:1

Card sample

CSS3 live lab

Text font color

The quick brown fox

color: #3fad21;
Background color
Panel with #3fad21 background
background-color: #3fad21;
Text shadow — hex

Glowing headline

text-shadow: 2px 2px 8px #3fad21;
Text shadow — RGB

Soft neon halo

text-shadow: 0 0 14px rgba(63, 173, 33, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(63, 173, 33, 0.45);
Border & gradient
Gradient panel
border: 3px solid #3fad21;
background: linear-gradient(135deg, #3fad21, #21AD60);

Monochromatic scale

Palettes built from #3fad21

Shades — darker

Tints — lighter

Hue & tone neighbors

Color harmonies

Nearest named colors

Work with #3fad21 in the Color Lab