#81df21
a balanced, vivid green · cool · closest name: lime
RGB
129, 223, 33
HSL
90°, 75%, 50%
CMYK
42, 0, 85, 13
Luminance
0.5755
Every format
| HEX | #81df21 |
| RGB | rgb(129, 223, 33) |
| HSL | hsl(90, 75%, 50%) |
| CMYK | cmyk(42%, 0%, 85%, 13%) |
| LAB | lab(80.5 -55.1 74.2) |
| LCH | lch(80.5 92.4 126.6) |
| OKLCH | oklch(0.814 0.224 133.9) |
Copy-ready code
/* CSS */
color: #81df21;
background-color: #81df21;
/* Tailwind (arbitrary) */
class="text-[#81df21] bg-[#81df21]"
/* SCSS */
$brand: #81df21;
/* SwiftUI */
Color(red: 0.506, green: 0.875, blue: 0.129)
/* Android */
Color.parseColor("#81df21")Accessibility — WCAG contrast
Aa
#81df21 on white: 1.68:1
AA ✗ fail · AA-large ✗ · AAA ✗
Aa
#81df21 on black: 12.51:1
AA ✓ pass · AA-large ✓ · AAA ✓
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red50.6%
Green87.5%
Blue12.9%
CMYK percentages
Cyan42.2%
Magenta0.0%
Yellow85.2%
Key (black)12.5%
Color previews
#81df21 text on a black background
contrast 12.51:1
Card sample
#81df21 text on a white background
contrast 1.68:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #81df21;
Background color
Panel with #81df21 background
background-color: #81df21;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #81df21;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(129, 223, 33, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(129, 223, 33, 0.45);
Border & gradient
Gradient panel
border: 3px solid #81df21; background: linear-gradient(135deg, #81df21, #21DF40);