#21df09
a balanced, electric green · cool · closest name: lime
RGB
33, 223, 9
HSL
113°, 92%, 46%
CMYK
85, 0, 96, 13
Luminance
0.5312
Every format
| HEX | #21df09 |
| RGB | rgb(33, 223, 9) |
| HSL | hsl(113, 92%, 46%) |
| CMYK | cmyk(85%, 0%, 96%, 13%) |
| LAB | lab(77.9 -76.0 74.6) |
| LCH | lch(77.9 106.5 135.5) |
| OKLCH | oklch(0.785 0.262 142.0) |
Copy-ready code
/* CSS */
color: #21df09;
background-color: #21df09;
/* Tailwind (arbitrary) */
class="text-[#21df09] bg-[#21df09]"
/* SCSS */
$brand: #21df09;
/* SwiftUI */
Color(red: 0.129, green: 0.875, blue: 0.035)
/* Android */
Color.parseColor("#21df09")Accessibility — WCAG contrast
Aa
#21df09 on white: 1.81:1
AA ✗ fail · AA-large ✗ · AAA ✗
Aa
#21df09 on black: 11.62:1
AA ✓ pass · AA-large ✓ · AAA ✓
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red12.9%
Green87.5%
Blue3.5%
CMYK percentages
Cyan85.2%
Magenta0.0%
Yellow96.0%
Key (black)12.5%
Color previews
#21df09 text on a black background
contrast 11.62:1
Card sample
#21df09 text on a white background
contrast 1.81:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #21df09;
Background color
Panel with #21df09 background
background-color: #21df09;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #21df09;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(33, 223, 9, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(33, 223, 9, 0.45);
Border & gradient
Gradient panel
border: 3px solid #21df09; background: linear-gradient(135deg, #21df09, #09DF80);