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#40c721

a balanced, vivid green · cool · closest name: green

RGB
64, 199, 33
HSL
109°, 72%, 46%
CMYK
68, 0, 83, 22
Luminance
0.4205

Every format

HEX#40c721
RGBrgb(64, 199, 33)
HSLhsl(109, 72%, 46%)
CMYKcmyk(68%, 0%, 83%, 22%)
LABlab(70.9 -63.9 64.8)
LCHlch(70.9 91.0 134.6)
OKLCHoklch(0.728 0.226 140.7)

Copy-ready code

/* CSS */
color: #40c721;
background-color: #40c721;
/* Tailwind (arbitrary) */
class="text-[#40c721] bg-[#40c721]"
/* SCSS */
$brand: #40c721;
/* SwiftUI */
Color(red: 0.251, green: 0.780, blue: 0.129)
/* Android */
Color.parseColor("#40c721")

Accessibility — WCAG contrast

Aa
#40c721 on white: 2.23:1
AA ✗ fail · AA-large · AAA
Aa
#40c721 on black: 9.41:1
AA ✓ pass · AA-large · AAA
true color
protanopia
deuteranopia
tritanopia

RGB percentages

Red25.1%
Green78.0%
Blue12.9%

CMYK percentages

Cyan67.8%
Magenta0.0%
Yellow83.4%
Key (black)22.0%

Color previews

#40c721 text on a black background

contrast 9.41:1

Card sample

#40c721 text on a white background

contrast 2.23:1

Card sample

CSS3 live lab

Text font color

The quick brown fox

color: #40c721;
Background color
Panel with #40c721 background
background-color: #40c721;
Text shadow — hex

Glowing headline

text-shadow: 2px 2px 8px #40c721;
Text shadow — RGB

Soft neon halo

text-shadow: 0 0 14px rgba(64, 199, 33, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(64, 199, 33, 0.45);
Border & gradient
Gradient panel
border: 3px solid #40c721;
background: linear-gradient(135deg, #40c721, #21C771);

Monochromatic scale

Palettes built from #40c721

Shades — darker

Tints — lighter

Hue & tone neighbors

Color harmonies

Nearest named colors

Work with #40c721 in the Color Lab