#040f2c
a deep, electric blue · cool · closest name: black
RGB
4, 15, 44
HSL
224°, 83%, 9%
CMYK
91, 66, 0, 83
Luminance
0.0055
Every format
| HEX | #040f2c |
| RGB | rgb(4, 15, 44) |
| HSL | hsl(224, 83%, 9%) |
| CMYK | cmyk(91%, 66%, 0%, 83%) |
| LAB | lab(5.0 6.3 -20.3) |
| LCH | lch(5.0 21.3 287.2) |
| OKLCH | oklch(0.179 0.061 263.6) |
Copy-ready code
/* CSS */
color: #040f2c;
background-color: #040f2c;
/* Tailwind (arbitrary) */
class="text-[#040f2c] bg-[#040f2c]"
/* SCSS */
$brand: #040f2c;
/* SwiftUI */
Color(red: 0.016, green: 0.059, blue: 0.173)
/* Android */
Color.parseColor("#040f2c")Accessibility — WCAG contrast
Aa
#040f2c on white: 18.92:1
AA ✓ pass · AA-large ✓ · AAA ✓
Aa
#040f2c on black: 1.11:1
AA ✗ fail · AA-large ✗ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red1.6%
Green5.9%
Blue17.3%
CMYK percentages
Cyan90.9%
Magenta65.9%
Yellow0.0%
Key (black)82.7%
Color previews
#040f2c text on a black background
contrast 1.11:1
Card sample
#040f2c text on a white background
contrast 18.92:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #040f2c;
Background color
Panel with #040f2c background
background-color: #040f2c;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #040f2c;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(4, 15, 44, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(4, 15, 44, 0.45);
Border & gradient
Gradient panel
border: 3px solid #040f2c; background: linear-gradient(135deg, #040f2c, #14042C);