#51ba21
a dark, vivid green · cool · closest name: forestgreen
RGB
81, 186, 33
HSL
101°, 70%, 43%
CMYK
57, 0, 82, 27
Luminance
0.3698
Every format
| HEX | #51ba21 |
| RGB | rgb(81, 186, 33) |
| HSL | hsl(101, 70%, 43%) |
| CMYK | cmyk(57%, 0%, 82%, 27%) |
| LAB | lab(67.3 -55.5 61.7) |
| LCH | lch(67.3 83.0 132.0) |
| OKLCH | oklch(0.699 0.205 138.4) |
Copy-ready code
/* CSS */
color: #51ba21;
background-color: #51ba21;
/* Tailwind (arbitrary) */
class="text-[#51ba21] bg-[#51ba21]"
/* SCSS */
$brand: #51ba21;
/* SwiftUI */
Color(red: 0.318, green: 0.729, blue: 0.129)
/* Android */
Color.parseColor("#51ba21")Accessibility — WCAG contrast
Aa
#51ba21 on white: 2.50:1
AA ✗ fail · AA-large ✗ · AAA ✗
Aa
#51ba21 on black: 8.40:1
AA ✓ pass · AA-large ✓ · AAA ✓
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red31.8%
Green72.9%
Blue12.9%
CMYK percentages
Cyan56.5%
Magenta0.0%
Yellow82.3%
Key (black)27.1%
Color previews
#51ba21 text on a black background
contrast 8.40:1
Card sample
#51ba21 text on a white background
contrast 2.50:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #51ba21;
Background color
Panel with #51ba21 background
background-color: #51ba21;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #51ba21;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(81, 186, 33, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(81, 186, 33, 0.45);
Border & gradient
Gradient panel
border: 3px solid #51ba21; background: linear-gradient(135deg, #51ba21, #21BA57);