#183b83
a dark, vivid blue · cool · closest name: midnightblue
RGB
24, 59, 131
HSL
220°, 69%, 30%
CMYK
82, 55, 0, 49
Luminance
0.0496
Every format
| HEX | #183b83 |
| RGB | rgb(24, 59, 131) |
| HSL | hsl(220, 69%, 30%) |
| CMYK | cmyk(82%, 55%, 0%, 49%) |
| LAB | lab(26.6 15.8 -44.1) |
| LCH | lch(26.6 46.8 289.7) |
| OKLCH | oklch(0.373 0.128 262.5) |
Copy-ready code
/* CSS */
color: #183b83;
background-color: #183b83;
/* Tailwind (arbitrary) */
class="text-[#183b83] bg-[#183b83]"
/* SCSS */
$brand: #183b83;
/* SwiftUI */
Color(red: 0.094, green: 0.231, blue: 0.514)
/* Android */
Color.parseColor("#183b83")Accessibility — WCAG contrast
Aa
#183b83 on white: 10.54:1
AA ✓ pass · AA-large ✓ · AAA ✓
Aa
#183b83 on black: 1.99:1
AA ✗ fail · AA-large ✗ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red9.4%
Green23.1%
Blue51.4%
CMYK percentages
Cyan81.7%
Magenta55.0%
Yellow0.0%
Key (black)48.6%
Color previews
#183b83 text on a black background
contrast 1.99:1
Card sample
#183b83 text on a white background
contrast 10.54:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #183b83;
Background color
Panel with #183b83 background
background-color: #183b83;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #183b83;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(24, 59, 131, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(24, 59, 131, 0.45);
Border & gradient
Gradient panel
border: 3px solid #183b83; background: linear-gradient(135deg, #183b83, #3C1883);