#040d2c
a deep, electric blue · warm · closest name: black
RGB
4, 13, 44
HSL
227°, 83%, 9%
CMYK
91, 71, 0, 83
Luminance
0.0050
Every format
| HEX | #040d2c |
| RGB | rgb(4, 13, 44) |
| HSL | hsl(227, 83%, 9%) |
| CMYK | cmyk(91%, 71%, 0%, 83%) |
| LAB | lab(4.5 7.3 -21.1) |
| LCH | lch(4.5 22.3 289.0) |
| OKLCH | oklch(0.174 0.065 265.6) |
Copy-ready code
/* CSS */
color: #040d2c;
background-color: #040d2c;
/* Tailwind (arbitrary) */
class="text-[#040d2c] bg-[#040d2c]"
/* SCSS */
$brand: #040d2c;
/* SwiftUI */
Color(red: 0.016, green: 0.051, blue: 0.173)
/* Android */
Color.parseColor("#040d2c")Accessibility — WCAG contrast
Aa
#040d2c on white: 19.11:1
AA ✓ pass · AA-large ✓ · AAA ✓
Aa
#040d2c on black: 1.10:1
AA ✗ fail · AA-large ✗ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red1.6%
Green5.1%
Blue17.3%
CMYK percentages
Cyan90.9%
Magenta70.5%
Yellow0.0%
Key (black)82.7%
Color previews
#040d2c text on a black background
contrast 1.10:1
Card sample
#040d2c text on a white background
contrast 19.11:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #040d2c;
Background color
Panel with #040d2c background
background-color: #040d2c;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #040d2c;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(4, 13, 44, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(4, 13, 44, 0.45);
Border & gradient
Gradient panel
border: 3px solid #040d2c; background: linear-gradient(135deg, #040d2c, #16042C);