#42c511
a dark, electric green · cool · closest name: green
RGB
66, 197, 17
HSL
104°, 84%, 42%
CMYK
67, 0, 91, 23
Luminance
0.4113
Every format
| HEX | #42c511 |
| RGB | rgb(66, 197, 17) |
| HSL | hsl(104, 84%, 42%) |
| CMYK | cmyk(67%, 0%, 91%, 23%) |
| LAB | lab(70.3 -63.4 67.5) |
| LCH | lch(70.3 92.6 133.2) |
| OKLCH | oklch(0.723 0.228 139.9) |
Copy-ready code
/* CSS */
color: #42c511;
background-color: #42c511;
/* Tailwind (arbitrary) */
class="text-[#42c511] bg-[#42c511]"
/* SCSS */
$brand: #42c511;
/* SwiftUI */
Color(red: 0.259, green: 0.773, blue: 0.067)
/* Android */
Color.parseColor("#42c511")Accessibility — WCAG contrast
Aa
#42c511 on white: 2.28:1
AA ✗ fail · AA-large ✗ · AAA ✗
Aa
#42c511 on black: 9.23:1
AA ✓ pass · AA-large ✓ · AAA ✓
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red25.9%
Green77.3%
Blue6.7%
CMYK percentages
Cyan66.5%
Magenta0.0%
Yellow91.4%
Key (black)22.7%
Color previews
#42c511 text on a black background
contrast 9.23:1
Card sample
#42c511 text on a white background
contrast 2.28:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #42c511;
Background color
Panel with #42c511 background
background-color: #42c511;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #42c511;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(66, 197, 17, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(66, 197, 17, 0.45);
Border & gradient
Gradient panel
border: 3px solid #42c511; background: linear-gradient(135deg, #42c511, #11C558);