#428c21
a dark, vivid green · cool · closest name: forestgreen
RGB
66, 140, 33
HSL
102°, 62%, 34%
CMYK
53, 0, 76, 45
Luminance
0.2002
Every format
| HEX | #428c21 |
| RGB | rgb(66, 140, 33) |
| HSL | hsl(102, 62%, 34%) |
| CMYK | cmyk(53%, 0%, 76%, 45%) |
| LAB | lab(51.9 -42.4 47.0) |
| LCH | lch(51.9 63.3 132.1) |
| OKLCH | oklch(0.571 0.158 138.0) |
Copy-ready code
/* CSS */
color: #428c21;
background-color: #428c21;
/* Tailwind (arbitrary) */
class="text-[#428c21] bg-[#428c21]"
/* SCSS */
$brand: #428c21;
/* SwiftUI */
Color(red: 0.259, green: 0.549, blue: 0.129)
/* Android */
Color.parseColor("#428c21")Accessibility — WCAG contrast
Aa
#428c21 on white: 4.20:1
AA ✗ fail · AA-large ✓ · AAA ✗
Aa
#428c21 on black: 5.00:1
AA ✓ pass · AA-large ✓ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red25.9%
Green54.9%
Blue12.9%
CMYK percentages
Cyan52.9%
Magenta0.0%
Yellow76.4%
Key (black)45.1%
Color previews
#428c21 text on a black background
contrast 5.00:1
Card sample
#428c21 text on a white background
contrast 4.20:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #428c21;
Background color
Panel with #428c21 background
background-color: #428c21;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #428c21;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(66, 140, 33, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(66, 140, 33, 0.45);
Border & gradient
Gradient panel
border: 3px solid #428c21; background: linear-gradient(135deg, #428c21, #218C47);