#57b921
a dark, vivid green · cool · closest name: forestgreen
RGB
87, 185, 33
HSL
99°, 70%, 43%
CMYK
53, 0, 82, 28
Luminance
0.3683
Every format
| HEX | #57b921 |
| RGB | rgb(87, 185, 33) |
| HSL | hsl(99, 70%, 43%) |
| CMYK | cmyk(53%, 0%, 82%, 28%) |
| LAB | lab(67.2 -53.5 61.7) |
| LCH | lch(67.2 81.7 130.9) |
| OKLCH | oklch(0.699 0.201 137.5) |
Copy-ready code
/* CSS */
color: #57b921;
background-color: #57b921;
/* Tailwind (arbitrary) */
class="text-[#57b921] bg-[#57b921]"
/* SCSS */
$brand: #57b921;
/* SwiftUI */
Color(red: 0.341, green: 0.725, blue: 0.129)
/* Android */
Color.parseColor("#57b921")Accessibility — WCAG contrast
Aa
#57b921 on white: 2.51:1
AA ✗ fail · AA-large ✗ · AAA ✗
Aa
#57b921 on black: 8.37:1
AA ✓ pass · AA-large ✓ · AAA ✓
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red34.1%
Green72.5%
Blue12.9%
CMYK percentages
Cyan53.0%
Magenta0.0%
Yellow82.2%
Key (black)27.5%
Color previews
#57b921 text on a black background
contrast 8.37:1
Card sample
#57b921 text on a white background
contrast 2.51:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #57b921;
Background color
Panel with #57b921 background
background-color: #57b921;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #57b921;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(87, 185, 33, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(87, 185, 33, 0.45);
Border & gradient
Gradient panel
border: 3px solid #57b921; background: linear-gradient(135deg, #57b921, #21B950);