#51ec21
a balanced, electric green · cool · closest name: lime
RGB
81, 236, 33
HSL
106°, 84%, 53%
CMYK
66, 0, 86, 8
Luminance
0.6185
Every format
| HEX | #51ec21 |
| RGB | rgb(81, 236, 33) |
| HSL | hsl(106, 84%, 53%) |
| CMYK | cmyk(66%, 0%, 86%, 8%) |
| LAB | lab(82.8 -72.2 75.6) |
| LCH | lch(82.8 104.5 133.7) |
| OKLCH | oklch(0.828 0.258 140.2) |
Copy-ready code
/* CSS */
color: #51ec21;
background-color: #51ec21;
/* Tailwind (arbitrary) */
class="text-[#51ec21] bg-[#51ec21]"
/* SCSS */
$brand: #51ec21;
/* SwiftUI */
Color(red: 0.318, green: 0.925, blue: 0.129)
/* Android */
Color.parseColor("#51ec21")Accessibility — WCAG contrast
Aa
#51ec21 on white: 1.57:1
AA ✗ fail · AA-large ✗ · AAA ✗
Aa
#51ec21 on black: 13.37:1
AA ✓ pass · AA-large ✓ · AAA ✓
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red31.8%
Green92.5%
Blue12.9%
CMYK percentages
Cyan65.7%
Magenta0.0%
Yellow86.0%
Key (black)7.5%
Color previews
#51ec21 text on a black background
contrast 13.37:1
Card sample
#51ec21 text on a white background
contrast 1.57:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #51ec21;
Background color
Panel with #51ec21 background
background-color: #51ec21;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #51ec21;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(81, 236, 33, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(81, 236, 33, 0.45);
Border & gradient
Gradient panel
border: 3px solid #51ec21; background: linear-gradient(135deg, #51ec21, #21EC78);