#42d821
a balanced, vivid green · cool · closest name: lime
RGB
66, 216, 33
HSL
109°, 74%, 49%
CMYK
69, 0, 85, 15
Luminance
0.5038
Every format
| HEX | #42d821 |
| RGB | rgb(66, 216, 33) |
| HSL | hsl(109, 74%, 49%) |
| CMYK | cmyk(69%, 0%, 85%, 15%) |
| LAB | lab(76.3 -68.8 69.7) |
| LCH | lch(76.3 98.0 134.6) |
| OKLCH | oklch(0.773 0.243 140.9) |
Copy-ready code
/* CSS */
color: #42d821;
background-color: #42d821;
/* Tailwind (arbitrary) */
class="text-[#42d821] bg-[#42d821]"
/* SCSS */
$brand: #42d821;
/* SwiftUI */
Color(red: 0.259, green: 0.847, blue: 0.129)
/* Android */
Color.parseColor("#42d821")Accessibility — WCAG contrast
Aa
#42d821 on white: 1.90:1
AA ✗ fail · AA-large ✗ · AAA ✗
Aa
#42d821 on black: 11.08:1
AA ✓ pass · AA-large ✓ · AAA ✓
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red25.9%
Green84.7%
Blue12.9%
CMYK percentages
Cyan69.4%
Magenta0.0%
Yellow84.7%
Key (black)15.3%
Color previews
#42d821 text on a black background
contrast 11.08:1
Card sample
#42d821 text on a white background
contrast 1.90:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #42d821;
Background color
Panel with #42d821 background
background-color: #42d821;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #42d821;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(66, 216, 33, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(66, 216, 33, 0.45);
Border & gradient
Gradient panel
border: 3px solid #42d821; background: linear-gradient(135deg, #42d821, #21D87A);