#51f721
a balanced, electric green · cool · closest name: lime
RGB
81, 247, 33
HSL
107°, 93%, 55%
CMYK
67, 0, 87, 3
Luminance
0.6838
Every format
| HEX | #51f721 |
| RGB | rgb(81, 247, 33) |
| HSL | hsl(107, 93%, 55%) |
| CMYK | cmyk(67%, 0%, 87%, 3%) |
| LAB | lab(86.2 -75.7 78.5) |
| LCH | lch(86.2 109.0 133.9) |
| OKLCH | oklch(0.856 0.269 140.4) |
Copy-ready code
/* CSS */
color: #51f721;
background-color: #51f721;
/* Tailwind (arbitrary) */
class="text-[#51f721] bg-[#51f721]"
/* SCSS */
$brand: #51f721;
/* SwiftUI */
Color(red: 0.318, green: 0.969, blue: 0.129)
/* Android */
Color.parseColor("#51f721")Accessibility — WCAG contrast
Aa
#51f721 on white: 1.43:1
AA ✗ fail · AA-large ✗ · AAA ✗
Aa
#51f721 on black: 14.68:1
AA ✓ pass · AA-large ✓ · AAA ✓
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red31.8%
Green96.9%
Blue12.9%
CMYK percentages
Cyan67.2%
Magenta0.0%
Yellow86.6%
Key (black)3.1%
Color previews
#51f721 text on a black background
contrast 14.68:1
Card sample
#51f721 text on a white background
contrast 1.43:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #51f721;
Background color
Panel with #51f721 background
background-color: #51f721;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #51f721;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(81, 247, 33, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(81, 247, 33, 0.45);
Border & gradient
Gradient panel
border: 3px solid #51f721; background: linear-gradient(135deg, #51f721, #21F780);