#51d521
a balanced, vivid green · cool · closest name: lime
RGB
81, 213, 33
HSL
104°, 73%, 48%
CMYK
62, 0, 85, 17
Luminance
0.4945
Every format
| HEX | #51d521 |
| RGB | rgb(81, 213, 33) |
| HSL | hsl(104, 73%, 48%) |
| CMYK | cmyk(62%, 0%, 85%, 17%) |
| LAB | lab(75.7 -64.8 69.3) |
| LCH | lch(75.7 94.9 133.1) |
| OKLCH | oklch(0.769 0.234 139.5) |
Copy-ready code
/* CSS */
color: #51d521;
background-color: #51d521;
/* Tailwind (arbitrary) */
class="text-[#51d521] bg-[#51d521]"
/* SCSS */
$brand: #51d521;
/* SwiftUI */
Color(red: 0.318, green: 0.835, blue: 0.129)
/* Android */
Color.parseColor("#51d521")Accessibility — WCAG contrast
Aa
#51d521 on white: 1.93:1
AA ✗ fail · AA-large ✗ · AAA ✗
Aa
#51d521 on black: 10.89:1
AA ✓ pass · AA-large ✓ · AAA ✓
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red31.8%
Green83.5%
Blue12.9%
CMYK percentages
Cyan62.0%
Magenta0.0%
Yellow84.5%
Key (black)16.5%
Color previews
#51d521 text on a black background
contrast 10.89:1
Card sample
#51d521 text on a white background
contrast 1.93:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #51d521;
Background color
Panel with #51d521 background
background-color: #51d521;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #51d521;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(81, 213, 33, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(81, 213, 33, 0.45);
Border & gradient
Gradient panel
border: 3px solid #51d521; background: linear-gradient(135deg, #51d521, #21D569);