#21fd39
a balanced, electric green · cool · closest name: lime
RGB
33, 253, 57
HSL
127°, 98%, 56%
CMYK
87, 0, 78, 1
Luminance
0.7087
Every format
| HEX | #21fd39 |
| RGB | rgb(33, 253, 57) |
| HSL | hsl(127, 98%, 56%) |
| CMYK | cmyk(87%, 0%, 78%, 1%) |
| LAB | lab(87.4 -82.4 73.6) |
| LCH | lch(87.4 110.5 138.2) |
| OKLCH | oklch(0.865 0.277 143.6) |
Copy-ready code
/* CSS */
color: #21fd39;
background-color: #21fd39;
/* Tailwind (arbitrary) */
class="text-[#21fd39] bg-[#21fd39]"
/* SCSS */
$brand: #21fd39;
/* SwiftUI */
Color(red: 0.129, green: 0.992, blue: 0.224)
/* Android */
Color.parseColor("#21fd39")Accessibility — WCAG contrast
Aa
#21fd39 on white: 1.38:1
AA ✗ fail · AA-large ✗ · AAA ✗
Aa
#21fd39 on black: 15.17:1
AA ✓ pass · AA-large ✓ · AAA ✓
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red12.9%
Green99.2%
Blue22.4%
CMYK percentages
Cyan87.0%
Magenta0.0%
Yellow77.5%
Key (black)0.8%
Color previews
#21fd39 text on a black background
contrast 15.17:1
Card sample
#21fd39 text on a white background
contrast 1.38:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #21fd39;
Background color
Panel with #21fd39 background
background-color: #21fd39;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #21fd39;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(33, 253, 57, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(33, 253, 57, 0.45);
Border & gradient
Gradient panel
border: 3px solid #21fd39; background: linear-gradient(135deg, #21fd39, #21FDCC);