#040d29
a deep, electric blue · warm · closest name: black
RGB
4, 13, 41
HSL
225°, 82%, 9%
CMYK
90, 68, 0, 84
Luminance
0.0047
Every format
| HEX | #040d29 |
| RGB | rgb(4, 13, 41) |
| HSL | hsl(225, 82%, 9%) |
| CMYK | cmyk(90%, 68%, 0%, 84%) |
| LAB | lab(4.3 5.9 -19.2) |
| LCH | lch(4.3 20.0 287.1) |
| OKLCH | oklch(0.171 0.059 265.0) |
Copy-ready code
/* CSS */
color: #040d29;
background-color: #040d29;
/* Tailwind (arbitrary) */
class="text-[#040d29] bg-[#040d29]"
/* SCSS */
$brand: #040d29;
/* SwiftUI */
Color(red: 0.016, green: 0.051, blue: 0.161)
/* Android */
Color.parseColor("#040d29")Accessibility — WCAG contrast
Aa
#040d29 on white: 19.18:1
AA ✓ pass · AA-large ✓ · AAA ✓
Aa
#040d29 on black: 1.09:1
AA ✗ fail · AA-large ✗ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red1.6%
Green5.1%
Blue16.1%
CMYK percentages
Cyan90.2%
Magenta68.3%
Yellow0.0%
Key (black)83.9%
Color previews
#040d29 text on a black background
contrast 1.09:1
Card sample
#040d29 text on a white background
contrast 19.18:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #040d29;
Background color
Panel with #040d29 background
background-color: #040d29;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #040d29;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(4, 13, 41, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(4, 13, 41, 0.45);
Border & gradient
Gradient panel
border: 3px solid #040d29; background: linear-gradient(135deg, #040d29, #140429);