#040d19
a deep, vivid blue · cool · closest name: black
RGB
4, 13, 25
HSL
214°, 72%, 6%
CMYK
84, 48, 0, 90
Luminance
0.0038
Every format
| HEX | #040d19 |
| RGB | rgb(4, 13, 25) |
| HSL | hsl(214, 72%, 6%) |
| CMYK | cmyk(84%, 48%, 0%, 90%) |
| LAB | lab(3.5 0.2 -8.0) |
| LCH | lch(3.5 8.0 271.4) |
| OKLCH | oklch(0.157 0.030 252.8) |
Copy-ready code
/* CSS */
color: #040d19;
background-color: #040d19;
/* Tailwind (arbitrary) */
class="text-[#040d19] bg-[#040d19]"
/* SCSS */
$brand: #040d19;
/* SwiftUI */
Color(red: 0.016, green: 0.051, blue: 0.098)
/* Android */
Color.parseColor("#040d19")Accessibility — WCAG contrast
Aa
#040d19 on white: 19.50:1
AA ✓ pass · AA-large ✓ · AAA ✓
Aa
#040d19 on black: 1.08:1
AA ✗ fail · AA-large ✗ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red1.6%
Green5.1%
Blue9.8%
CMYK percentages
Cyan84.0%
Magenta48.0%
Yellow0.0%
Key (black)90.2%
Color previews
#040d19 text on a black background
contrast 1.08:1
Card sample
#040d19 text on a white background
contrast 19.50:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #040d19;
Background color
Panel with #040d19 background
background-color: #040d19;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #040d19;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(4, 13, 25, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(4, 13, 25, 0.45);
Border & gradient
Gradient panel
border: 3px solid #040d19; background: linear-gradient(135deg, #040d19, #090419);