#21f921
a balanced, electric green · cool · closest name: lime
RGB
33, 249, 33
HSL
120°, 95%, 55%
CMYK
87, 0, 87, 2
Luminance
0.6818
Every format
| HEX | #21f921 |
| RGB | rgb(33, 249, 33) |
| HSL | hsl(120, 95%, 55%) |
| CMYK | cmyk(87%, 0%, 87%, 2%) |
| LAB | lab(86.1 -82.5 78.1) |
| LCH | lch(86.1 113.6 136.5) |
| OKLCH | oklch(0.853 0.282 142.6) |
Copy-ready code
/* CSS */
color: #21f921;
background-color: #21f921;
/* Tailwind (arbitrary) */
class="text-[#21f921] bg-[#21f921]"
/* SCSS */
$brand: #21f921;
/* SwiftUI */
Color(red: 0.129, green: 0.976, blue: 0.129)
/* Android */
Color.parseColor("#21f921")Accessibility — WCAG contrast
Aa
#21f921 on white: 1.43:1
AA ✗ fail · AA-large ✗ · AAA ✗
Aa
#21f921 on black: 14.64:1
AA ✓ pass · AA-large ✓ · AAA ✓
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red12.9%
Green97.6%
Blue12.9%
CMYK percentages
Cyan86.7%
Magenta0.0%
Yellow86.7%
Key (black)2.4%
Color previews
#21f921 text on a black background
contrast 14.64:1
Card sample
#21f921 text on a white background
contrast 1.43:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #21f921;
Background color
Panel with #21f921 background
background-color: #21f921;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #21f921;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(33, 249, 33, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(33, 249, 33, 0.45);
Border & gradient
Gradient panel
border: 3px solid #21f921; background: linear-gradient(135deg, #21f921, #21F9B1);