#040821
a deep, electric blue · warm · closest name: black
RGB
4, 8, 33
HSL
232°, 78%, 7%
CMYK
88, 76, 0, 87
Luminance
0.0031
Every format
| HEX | #040821 |
| RGB | rgb(4, 8, 33) |
| HSL | hsl(232, 78%, 7%) |
| CMYK | cmyk(88%, 76%, 0%, 87%) |
| LAB | lab(2.8 4.8 -15.3) |
| LCH | lch(2.8 16.0 287.5) |
| OKLCH | oklch(0.149 0.053 269.4) |
Copy-ready code
/* CSS */
color: #040821;
background-color: #040821;
/* Tailwind (arbitrary) */
class="text-[#040821] bg-[#040821]"
/* SCSS */
$brand: #040821;
/* SwiftUI */
Color(red: 0.016, green: 0.031, blue: 0.129)
/* Android */
Color.parseColor("#040821")Accessibility — WCAG contrast
Aa
#040821 on white: 19.78:1
AA ✓ pass · AA-large ✓ · AAA ✓
Aa
#040821 on black: 1.06:1
AA ✗ fail · AA-large ✗ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red1.6%
Green3.1%
Blue12.9%
CMYK percentages
Cyan87.9%
Magenta75.8%
Yellow0.0%
Key (black)87.1%
Color previews
#040821 text on a black background
contrast 1.06:1
Card sample
#040821 text on a white background
contrast 19.78:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #040821;
Background color
Panel with #040821 background
background-color: #040821;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #040821;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(4, 8, 33, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(4, 8, 33, 0.45);
Border & gradient
Gradient panel
border: 3px solid #040821; background: linear-gradient(135deg, #040821, #130421);