#0a1821
a deep, vivid blue · cool · closest name: black
RGB
10, 24, 33
HSL
204°, 54%, 8%
CMYK
70, 27, 0, 87
Luminance
0.0083
Every format
| HEX | #0a1821 |
| RGB | rgb(10, 24, 33) |
| HSL | hsl(204, 54%, 8%) |
| CMYK | cmyk(70%, 27%, 0%, 87%) |
| LAB | lab(7.5 -2.5 -8.1) |
| LCH | lch(7.5 8.5 253.0) |
| OKLCH | oklch(0.201 0.027 238.3) |
Copy-ready code
/* CSS */
color: #0a1821;
background-color: #0a1821;
/* Tailwind (arbitrary) */
class="text-[#0a1821] bg-[#0a1821]"
/* SCSS */
$brand: #0a1821;
/* SwiftUI */
Color(red: 0.039, green: 0.094, blue: 0.129)
/* Android */
Color.parseColor("#0a1821")Accessibility — WCAG contrast
Aa
#0a1821 on white: 18.02:1
AA ✓ pass · AA-large ✓ · AAA ✓
Aa
#0a1821 on black: 1.17:1
AA ✗ fail · AA-large ✗ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red3.9%
Green9.4%
Blue12.9%
CMYK percentages
Cyan69.7%
Magenta27.3%
Yellow0.0%
Key (black)87.1%
Color previews
#0a1821 text on a black background
contrast 1.17:1
Card sample
#0a1821 text on a white background
contrast 18.02:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #0a1821;
Background color
Panel with #0a1821 background
background-color: #0a1821;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #0a1821;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(10, 24, 33, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(10, 24, 33, 0.45);
Border & gradient
Gradient panel
border: 3px solid #0a1821; background: linear-gradient(135deg, #0a1821, #0B0A21);