#183b21
a deep, soft green · cool · closest name: darkslategray
RGB
24, 59, 33
HSL
135°, 42%, 16%
CMYK
59, 0, 44, 77
Luminance
0.0343
Every format
| HEX | #183b21 |
| RGB | rgb(24, 59, 33) |
| HSL | hsl(135, 42%, 16%) |
| CMYK | cmyk(59%, 0%, 44%, 77%) |
| LAB | lab(21.7 -19.7 12.4) |
| LCH | lch(21.7 23.2 147.9) |
| OKLCH | oklch(0.318 0.062 150.0) |
Copy-ready code
/* CSS */
color: #183b21;
background-color: #183b21;
/* Tailwind (arbitrary) */
class="text-[#183b21] bg-[#183b21]"
/* SCSS */
$brand: #183b21;
/* SwiftUI */
Color(red: 0.094, green: 0.231, blue: 0.129)
/* Android */
Color.parseColor("#183b21")Accessibility — WCAG contrast
Aa
#183b21 on white: 12.45:1
AA ✓ pass · AA-large ✓ · AAA ✓
Aa
#183b21 on black: 1.69:1
AA ✗ fail · AA-large ✗ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red9.4%
Green23.1%
Blue12.9%
CMYK percentages
Cyan59.3%
Magenta0.0%
Yellow44.1%
Key (black)76.9%
Color previews
#183b21 text on a black background
contrast 1.69:1
Card sample
#183b21 text on a white background
contrast 12.45:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #183b21;
Background color
Panel with #183b21 background
background-color: #183b21;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #183b21;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(24, 59, 33, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(24, 59, 33, 0.45);
Border & gradient
Gradient panel
border: 3px solid #183b21; background: linear-gradient(135deg, #183b21, #183B38);