#040321
a deep, electric blue · warm · closest name: black
RGB
4, 3, 33
HSL
242°, 83%, 7%
CMYK
88, 91, 0, 87
Luminance
0.0020
Every format
| HEX | #040321 |
| RGB | rgb(4, 3, 33) |
| HSL | hsl(242, 83%, 7%) |
| CMYK | cmyk(88%, 91%, 0%, 87%) |
| LAB | lab(1.8 6.8 -16.8) |
| LCH | lch(1.8 18.1 292.1) |
| OKLCH | oklch(0.132 0.065 275.5) |
Copy-ready code
/* CSS */
color: #040321;
background-color: #040321;
/* Tailwind (arbitrary) */
class="text-[#040321] bg-[#040321]"
/* SCSS */
$brand: #040321;
/* SwiftUI */
Color(red: 0.016, green: 0.012, blue: 0.129)
/* Android */
Color.parseColor("#040321")Accessibility — WCAG contrast
Aa
#040321 on white: 20.19:1
AA ✓ pass · AA-large ✓ · AAA ✓
Aa
#040321 on black: 1.04:1
AA ✗ fail · AA-large ✗ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red1.6%
Green1.2%
Blue12.9%
CMYK percentages
Cyan87.9%
Magenta90.9%
Yellow0.0%
Key (black)87.1%
Color previews
#040321 text on a black background
contrast 1.04:1
Card sample
#040321 text on a white background
contrast 20.19:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #040321;
Background color
Panel with #040321 background
background-color: #040321;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #040321;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(4, 3, 33, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(4, 3, 33, 0.45);
Border & gradient
Gradient panel
border: 3px solid #040321; background: linear-gradient(135deg, #040321, #180321);