#21ef1b
a balanced, electric green · cool · closest name: lime
RGB
33, 239, 27
HSL
118°, 87%, 52%
CMYK
86, 0, 89, 6
Luminance
0.6214
Every format
| HEX | #21ef1b |
| RGB | rgb(33, 239, 27) |
| HSL | hsl(118, 87%, 52%) |
| CMYK | cmyk(86%, 0%, 89%, 6%) |
| LAB | lab(83.0 -80.0 76.5) |
| LCH | lch(83.0 110.7 136.3) |
| OKLCH | oklch(0.827 0.274 142.4) |
Copy-ready code
/* CSS */
color: #21ef1b;
background-color: #21ef1b;
/* Tailwind (arbitrary) */
class="text-[#21ef1b] bg-[#21ef1b]"
/* SCSS */
$brand: #21ef1b;
/* SwiftUI */
Color(red: 0.129, green: 0.937, blue: 0.106)
/* Android */
Color.parseColor("#21ef1b")Accessibility — WCAG contrast
Aa
#21ef1b on white: 1.56:1
AA ✗ fail · AA-large ✗ · AAA ✗
Aa
#21ef1b on black: 13.43:1
AA ✓ pass · AA-large ✓ · AAA ✓
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red12.9%
Green93.7%
Blue10.6%
CMYK percentages
Cyan86.2%
Magenta0.0%
Yellow88.7%
Key (black)6.3%
Color previews
#21ef1b text on a black background
contrast 13.43:1
Card sample
#21ef1b text on a white background
contrast 1.56:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #21ef1b;
Background color
Panel with #21ef1b background
background-color: #21ef1b;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #21ef1b;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(33, 239, 27, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(33, 239, 27, 0.45);
Border & gradient
Gradient panel
border: 3px solid #21ef1b; background: linear-gradient(135deg, #21ef1b, #1BEFA2);