#0a3bc9
a dark, electric blue · cool · closest name: slateblue
RGB
10, 59, 201
HSL
225°, 91%, 41%
CMYK
95, 71, 0, 21
Luminance
0.0741
Every format
| HEX | #0a3bc9 |
| RGB | rgb(10, 59, 201) |
| HSL | hsl(225, 91%, 41%) |
| CMYK | cmyk(95%, 71%, 0%, 21%) |
| LAB | lab(32.7 42.4 -76.3) |
| LCH | lch(32.7 87.3 299.1) |
| OKLCH | oklch(0.437 0.223 264.0) |
Copy-ready code
/* CSS */
color: #0a3bc9;
background-color: #0a3bc9;
/* Tailwind (arbitrary) */
class="text-[#0a3bc9] bg-[#0a3bc9]"
/* SCSS */
$brand: #0a3bc9;
/* SwiftUI */
Color(red: 0.039, green: 0.231, blue: 0.788)
/* Android */
Color.parseColor("#0a3bc9")Accessibility — WCAG contrast
Aa
#0a3bc9 on white: 8.46:1
AA ✓ pass · AA-large ✓ · AAA ✓
Aa
#0a3bc9 on black: 2.48:1
AA ✗ fail · AA-large ✗ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red3.9%
Green23.1%
Blue78.8%
CMYK percentages
Cyan95.0%
Magenta70.6%
Yellow0.0%
Key (black)21.2%
Color previews
#0a3bc9 text on a black background
contrast 2.48:1
Card sample
#0a3bc9 text on a white background
contrast 8.46:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #0a3bc9;
Background color
Panel with #0a3bc9 background
background-color: #0a3bc9;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #0a3bc9;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(10, 59, 201, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(10, 59, 201, 0.45);
Border & gradient
Gradient panel
border: 3px solid #0a3bc9; background: linear-gradient(135deg, #0a3bc9, #580AC9);