#51dc21
a balanced, vivid green · cool · closest name: lime
RGB
81, 220, 33
HSL
105°, 74%, 50%
CMYK
63, 0, 85, 14
Luminance
0.5305
Every format
| HEX | #51dc21 |
| RGB | rgb(81, 220, 33) |
| HSL | hsl(105, 74%, 50%) |
| CMYK | cmyk(63%, 0%, 85%, 14%) |
| LAB | lab(77.9 -67.1 71.3) |
| LCH | lch(77.9 97.9 133.3) |
| OKLCH | oklch(0.787 0.242 139.8) |
Copy-ready code
/* CSS */
color: #51dc21;
background-color: #51dc21;
/* Tailwind (arbitrary) */
class="text-[#51dc21] bg-[#51dc21]"
/* SCSS */
$brand: #51dc21;
/* SwiftUI */
Color(red: 0.318, green: 0.863, blue: 0.129)
/* Android */
Color.parseColor("#51dc21")Accessibility — WCAG contrast
Aa
#51dc21 on white: 1.81:1
AA ✗ fail · AA-large ✗ · AAA ✗
Aa
#51dc21 on black: 11.61:1
AA ✓ pass · AA-large ✓ · AAA ✓
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red31.8%
Green86.3%
Blue12.9%
CMYK percentages
Cyan63.2%
Magenta0.0%
Yellow85.0%
Key (black)13.7%
Color previews
#51dc21 text on a black background
contrast 11.61:1
Card sample
#51dc21 text on a white background
contrast 1.81:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #51dc21;
Background color
Panel with #51dc21 background
background-color: #51dc21;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #51dc21;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(81, 220, 33, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(81, 220, 33, 0.45);
Border & gradient
Gradient panel
border: 3px solid #51dc21; background: linear-gradient(135deg, #51dc21, #21DC6E);