#178f39
a dark, vivid green · cool · closest name: forestgreen
RGB
23, 143, 57
HSL
137°, 72%, 33%
CMYK
84, 0, 60, 44
Luminance
0.2012
Every format
| HEX | #178f39 |
| RGB | rgb(23, 143, 57) |
| HSL | hsl(137, 72%, 33%) |
| CMYK | cmyk(84%, 0%, 60%, 44%) |
| LAB | lab(52.0 -50.0 36.4) |
| LCH | lch(52.0 61.8 143.9) |
| OKLCH | oklch(0.569 0.160 147.3) |
Copy-ready code
/* CSS */
color: #178f39;
background-color: #178f39;
/* Tailwind (arbitrary) */
class="text-[#178f39] bg-[#178f39]"
/* SCSS */
$brand: #178f39;
/* SwiftUI */
Color(red: 0.090, green: 0.561, blue: 0.224)
/* Android */
Color.parseColor("#178f39")Accessibility — WCAG contrast
Aa
#178f39 on white: 4.18:1
AA ✗ fail · AA-large ✓ · AAA ✗
Aa
#178f39 on black: 5.02:1
AA ✓ pass · AA-large ✓ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red9.0%
Green56.1%
Blue22.4%
CMYK percentages
Cyan83.9%
Magenta0.0%
Yellow60.1%
Key (black)43.9%
Color previews
#178f39 text on a black background
contrast 5.02:1
Card sample
#178f39 text on a white background
contrast 4.18:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #178f39;
Background color
Panel with #178f39 background
background-color: #178f39;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #178f39;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(23, 143, 57, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(23, 143, 57, 0.45);
Border & gradient
Gradient panel
border: 3px solid #178f39; background: linear-gradient(135deg, #178f39, #178F89);