#428e21
a dark, vivid green · cool · closest name: forestgreen
RGB
66, 142, 33
HSL
102°, 62%, 34%
CMYK
54, 0, 77, 44
Luminance
0.2061
Every format
| HEX | #428e21 |
| RGB | rgb(66, 142, 33) |
| HSL | hsl(102, 62%, 34%) |
| CMYK | cmyk(54%, 0%, 77%, 44%) |
| LAB | lab(52.5 -43.2 47.6) |
| LCH | lch(52.5 64.3 132.2) |
| OKLCH | oklch(0.576 0.160 138.2) |
Copy-ready code
/* CSS */
color: #428e21;
background-color: #428e21;
/* Tailwind (arbitrary) */
class="text-[#428e21] bg-[#428e21]"
/* SCSS */
$brand: #428e21;
/* SwiftUI */
Color(red: 0.259, green: 0.557, blue: 0.129)
/* Android */
Color.parseColor("#428e21")Accessibility — WCAG contrast
Aa
#428e21 on white: 4.10:1
AA ✗ fail · AA-large ✓ · AAA ✗
Aa
#428e21 on black: 5.12:1
AA ✓ pass · AA-large ✓ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red25.9%
Green55.7%
Blue12.9%
CMYK percentages
Cyan53.5%
Magenta0.0%
Yellow76.8%
Key (black)44.3%
Color previews
#428e21 text on a black background
contrast 5.12:1
Card sample
#428e21 text on a white background
contrast 4.10:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #428e21;
Background color
Panel with #428e21 background
background-color: #428e21;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #428e21;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(66, 142, 33, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(66, 142, 33, 0.45);
Border & gradient
Gradient panel
border: 3px solid #428e21; background: linear-gradient(135deg, #428e21, #218E49);