#51bd21
a dark, vivid green · cool · closest name: green
RGB
81, 189, 33
HSL
102°, 70%, 44%
CMYK
57, 0, 83, 26
Luminance
0.3825
Every format
| HEX | #51bd21 |
| RGB | rgb(81, 189, 33) |
| HSL | hsl(102, 70%, 44%) |
| CMYK | cmyk(57%, 0%, 83%, 26%) |
| LAB | lab(68.2 -56.6 62.6) |
| LCH | lch(68.2 84.4 132.1) |
| OKLCH | oklch(0.707 0.208 138.6) |
Copy-ready code
/* CSS */
color: #51bd21;
background-color: #51bd21;
/* Tailwind (arbitrary) */
class="text-[#51bd21] bg-[#51bd21]"
/* SCSS */
$brand: #51bd21;
/* SwiftUI */
Color(red: 0.318, green: 0.741, blue: 0.129)
/* Android */
Color.parseColor("#51bd21")Accessibility — WCAG contrast
Aa
#51bd21 on white: 2.43:1
AA ✗ fail · AA-large ✗ · AAA ✗
Aa
#51bd21 on black: 8.65:1
AA ✓ pass · AA-large ✓ · AAA ✓
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red31.8%
Green74.1%
Blue12.9%
CMYK percentages
Cyan57.1%
Magenta0.0%
Yellow82.5%
Key (black)25.9%
Color previews
#51bd21 text on a black background
contrast 8.65:1
Card sample
#51bd21 text on a white background
contrast 2.43:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #51bd21;
Background color
Panel with #51bd21 background
background-color: #51bd21;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #51bd21;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(81, 189, 33, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(81, 189, 33, 0.45);
Border & gradient
Gradient panel
border: 3px solid #51bd21; background: linear-gradient(135deg, #51bd21, #21BD59);