#040d15
a deep, vivid blue · cool · closest name: black
RGB
4, 13, 21
HSL
208°, 68%, 5%
CMYK
81, 38, 0, 92
Luminance
0.0037
Every format
| HEX | #040d15 |
| RGB | rgb(4, 13, 21) |
| HSL | hsl(208, 68%, 5%) |
| CMYK | cmyk(81%, 38%, 0%, 92%) |
| LAB | lab(3.3 -0.8 -5.2) |
| LCH | lch(3.3 5.3 260.9) |
| OKLCH | oklch(0.154 0.023 242.8) |
Copy-ready code
/* CSS */
color: #040d15;
background-color: #040d15;
/* Tailwind (arbitrary) */
class="text-[#040d15] bg-[#040d15]"
/* SCSS */
$brand: #040d15;
/* SwiftUI */
Color(red: 0.016, green: 0.051, blue: 0.082)
/* Android */
Color.parseColor("#040d15")Accessibility — WCAG contrast
Aa
#040d15 on white: 19.56:1
AA ✓ pass · AA-large ✓ · AAA ✓
Aa
#040d15 on black: 1.07:1
AA ✗ fail · AA-large ✗ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red1.6%
Green5.1%
Blue8.2%
CMYK percentages
Cyan81.0%
Magenta38.1%
Yellow0.0%
Key (black)91.8%
Color previews
#040d15 text on a black background
contrast 1.07:1
Card sample
#040d15 text on a white background
contrast 19.56:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #040d15;
Background color
Panel with #040d15 background
background-color: #040d15;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #040d15;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(4, 13, 21, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(4, 13, 21, 0.45);
Border & gradient
Gradient panel
border: 3px solid #040d15; background: linear-gradient(135deg, #040d15, #060415);