#183b3c
a deep, soft cyan · cool · closest name: darkslategray
RGB
24, 59, 60
HSL
182°, 43%, 17%
CMYK
60, 2, 0, 77
Luminance
0.0365
Every format
| HEX | #183b3c |
| RGB | rgb(24, 59, 60) |
| HSL | hsl(182, 43%, 17%) |
| CMYK | cmyk(60%, 2%, 0%, 77%) |
| LAB | lab(22.5 -12.2 -4.5) |
| LCH | lch(22.5 13.0 200.1) |
| OKLCH | oklch(0.327 0.040 197.9) |
Copy-ready code
/* CSS */
color: #183b3c;
background-color: #183b3c;
/* Tailwind (arbitrary) */
class="text-[#183b3c] bg-[#183b3c]"
/* SCSS */
$brand: #183b3c;
/* SwiftUI */
Color(red: 0.094, green: 0.231, blue: 0.235)
/* Android */
Color.parseColor("#183b3c")Accessibility — WCAG contrast
Aa
#183b3c on white: 12.14:1
AA ✓ pass · AA-large ✓ · AAA ✓
Aa
#183b3c on black: 1.73:1
AA ✗ fail · AA-large ✗ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red9.4%
Green23.1%
Blue23.5%
CMYK percentages
Cyan60.0%
Magenta1.7%
Yellow0.0%
Key (black)76.5%
Color previews
#183b3c text on a black background
contrast 1.73:1
Card sample
#183b3c text on a white background
contrast 12.14:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #183b3c;
Background color
Panel with #183b3c background
background-color: #183b3c;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #183b3c;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(24, 59, 60, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(24, 59, 60, 0.45);
Border & gradient
Gradient panel
border: 3px solid #183b3c; background: linear-gradient(135deg, #183b3c, #18233C);