#04397b
a deep, electric blue · cool · closest name: midnightblue
RGB
4, 57, 123
HSL
213°, 94%, 25%
CMYK
97, 54, 0, 52
Luminance
0.0438
Every format
| HEX | #04397b |
| RGB | rgb(4, 57, 123) |
| HSL | hsl(213, 94%, 25%) |
| CMYK | cmyk(97%, 54%, 0%, 52%) |
| LAB | lab(24.9 12.2 -41.9) |
| LCH | lch(24.9 43.6 286.2) |
| OKLCH | oklch(0.356 0.124 257.4) |
Copy-ready code
/* CSS */
color: #04397b;
background-color: #04397b;
/* Tailwind (arbitrary) */
class="text-[#04397b] bg-[#04397b]"
/* SCSS */
$brand: #04397b;
/* SwiftUI */
Color(red: 0.016, green: 0.224, blue: 0.482)
/* Android */
Color.parseColor("#04397b")Accessibility — WCAG contrast
Aa
#04397b on white: 11.19:1
AA ✓ pass · AA-large ✓ · AAA ✓
Aa
#04397b on black: 1.88:1
AA ✗ fail · AA-large ✗ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red1.6%
Green22.4%
Blue48.2%
CMYK percentages
Cyan96.7%
Magenta53.7%
Yellow0.0%
Key (black)51.8%
Color previews
#04397b text on a black background
contrast 1.88:1
Card sample
#04397b text on a white background
contrast 11.19:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #04397b;
Background color
Panel with #04397b background
background-color: #04397b;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #04397b;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(4, 57, 123, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(4, 57, 123, 0.45);
Border & gradient
Gradient panel
border: 3px solid #04397b; background: linear-gradient(135deg, #04397b, #1E047B);