#51c821
a balanced, vivid green · cool · closest name: green
RGB
81, 200, 33
HSL
103°, 72%, 46%
CMYK
60, 0, 84, 22
Luminance
0.4317
Every format
| HEX | #51c821 |
| RGB | rgb(81, 200, 33) |
| HSL | hsl(103, 72%, 46%) |
| CMYK | cmyk(60%, 0%, 84%, 22%) |
| LAB | lab(71.7 -60.4 65.7) |
| LCH | lch(71.7 89.3 132.6) |
| OKLCH | oklch(0.736 0.221 139.1) |
Copy-ready code
/* CSS */
color: #51c821;
background-color: #51c821;
/* Tailwind (arbitrary) */
class="text-[#51c821] bg-[#51c821]"
/* SCSS */
$brand: #51c821;
/* SwiftUI */
Color(red: 0.318, green: 0.784, blue: 0.129)
/* Android */
Color.parseColor("#51c821")Accessibility — WCAG contrast
Aa
#51c821 on white: 2.18:1
AA ✗ fail · AA-large ✗ · AAA ✗
Aa
#51c821 on black: 9.63:1
AA ✓ pass · AA-large ✓ · AAA ✓
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red31.8%
Green78.4%
Blue12.9%
CMYK percentages
Cyan59.5%
Magenta0.0%
Yellow83.5%
Key (black)21.6%
Color previews
#51c821 text on a black background
contrast 9.63:1
Card sample
#51c821 text on a white background
contrast 2.18:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #51c821;
Background color
Panel with #51c821 background
background-color: #51c821;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #51c821;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(81, 200, 33, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(81, 200, 33, 0.45);
Border & gradient
Gradient panel
border: 3px solid #51c821; background: linear-gradient(135deg, #51c821, #21C860);