#428a21
a dark, vivid green · cool · closest name: forestgreen
RGB
66, 138, 33
HSL
101°, 61%, 34%
CMYK
52, 0, 76, 46
Luminance
0.1945
Every format
| HEX | #428a21 |
| RGB | rgb(66, 138, 33) |
| HSL | hsl(101, 61%, 34%) |
| CMYK | cmyk(52%, 0%, 76%, 46%) |
| LAB | lab(51.2 -41.6 46.3) |
| LCH | lch(51.2 62.2 131.9) |
| OKLCH | oklch(0.566 0.155 137.9) |
Copy-ready code
/* CSS */
color: #428a21;
background-color: #428a21;
/* Tailwind (arbitrary) */
class="text-[#428a21] bg-[#428a21]"
/* SCSS */
$brand: #428a21;
/* SwiftUI */
Color(red: 0.259, green: 0.541, blue: 0.129)
/* Android */
Color.parseColor("#428a21")Accessibility — WCAG contrast
Aa
#428a21 on white: 4.30:1
AA ✗ fail · AA-large ✓ · AAA ✗
Aa
#428a21 on black: 4.89:1
AA ✓ pass · AA-large ✓ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red25.9%
Green54.1%
Blue12.9%
CMYK percentages
Cyan52.2%
Magenta0.0%
Yellow76.1%
Key (black)45.9%
Color previews
#428a21 text on a black background
contrast 4.89:1
Card sample
#428a21 text on a white background
contrast 4.30:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #428a21;
Background color
Panel with #428a21 background
background-color: #428a21;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #428a21;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(66, 138, 33, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(66, 138, 33, 0.45);
Border & gradient
Gradient panel
border: 3px solid #428a21; background: linear-gradient(135deg, #428a21, #218A46);