#51d310
a dark, electric green · cool · closest name: lime
RGB
81, 211, 16
HSL
100°, 86%, 45%
CMYK
62, 0, 92, 17
Luminance
0.4838
Every format
| HEX | #51d310 |
| RGB | rgb(81, 211, 16) |
| HSL | hsl(100, 86%, 45%) |
| CMYK | cmyk(62%, 0%, 92%, 17%) |
| LAB | lab(75.1 -64.7 71.8) |
| LCH | lch(75.1 96.7 132.0) |
| OKLCH | oklch(0.764 0.237 139.0) |
Copy-ready code
/* CSS */
color: #51d310;
background-color: #51d310;
/* Tailwind (arbitrary) */
class="text-[#51d310] bg-[#51d310]"
/* SCSS */
$brand: #51d310;
/* SwiftUI */
Color(red: 0.318, green: 0.827, blue: 0.063)
/* Android */
Color.parseColor("#51d310")Accessibility — WCAG contrast
Aa
#51d310 on white: 1.97:1
AA ✗ fail · AA-large ✗ · AAA ✗
Aa
#51d310 on black: 10.68:1
AA ✓ pass · AA-large ✓ · AAA ✓
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red31.8%
Green82.7%
Blue6.3%
CMYK percentages
Cyan61.6%
Magenta0.0%
Yellow92.4%
Key (black)17.3%
Color previews
#51d310 text on a black background
contrast 10.68:1
Card sample
#51d310 text on a white background
contrast 1.97:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #51d310;
Background color
Panel with #51d310 background
background-color: #51d310;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #51d310;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(81, 211, 16, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(81, 211, 16, 0.45);
Border & gradient
Gradient panel
border: 3px solid #51d310; background: linear-gradient(135deg, #51d310, #10D351);