#40df39
a balanced, vivid green · cool · closest name: lime
RGB
64, 223, 57
HSL
118°, 72%, 55%
CMYK
71, 0, 74, 13
Luminance
0.5416
Every format
| HEX | #40df39 |
| RGB | rgb(64, 223, 57) |
| HSL | hsl(118, 72%, 55%) |
| CMYK | cmyk(71%, 0%, 74%, 13%) |
| LAB | lab(78.5 -70.0 65.1) |
| LCH | lch(78.5 95.6 137.1) |
| OKLCH | oklch(0.792 0.240 142.4) |
Copy-ready code
/* CSS */
color: #40df39;
background-color: #40df39;
/* Tailwind (arbitrary) */
class="text-[#40df39] bg-[#40df39]"
/* SCSS */
$brand: #40df39;
/* SwiftUI */
Color(red: 0.251, green: 0.875, blue: 0.224)
/* Android */
Color.parseColor("#40df39")Accessibility — WCAG contrast
Aa
#40df39 on white: 1.77:1
AA ✗ fail · AA-large ✗ · AAA ✗
Aa
#40df39 on black: 11.83:1
AA ✓ pass · AA-large ✓ · AAA ✓
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red25.1%
Green87.5%
Blue22.4%
CMYK percentages
Cyan71.3%
Magenta0.0%
Yellow74.4%
Key (black)12.5%
Color previews
#40df39 text on a black background
contrast 11.83:1
Card sample
#40df39 text on a white background
contrast 1.77:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #40df39;
Background color
Panel with #40df39 background
background-color: #40df39;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #40df39;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(64, 223, 57, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(64, 223, 57, 0.45);
Border & gradient
Gradient panel
border: 3px solid #40df39; background: linear-gradient(135deg, #40df39, #39DFA1);