#0a3fdf
a balanced, electric blue · warm · closest name: navy
RGB
10, 63, 223
HSL
225°, 91%, 46%
CMYK
96, 72, 0, 13
Luminance
0.0895
Every format
| HEX | #0a3fdf |
| RGB | rgb(10, 63, 223) |
| HSL | hsl(225, 91%, 46%) |
| CMYK | cmyk(96%, 72%, 0%, 13%) |
| LAB | lab(35.9 47.9 -83.8) |
| LCH | lch(35.9 96.5 299.8) |
| OKLCH | oklch(0.466 0.244 264.1) |
Copy-ready code
/* CSS */
color: #0a3fdf;
background-color: #0a3fdf;
/* Tailwind (arbitrary) */
class="text-[#0a3fdf] bg-[#0a3fdf]"
/* SCSS */
$brand: #0a3fdf;
/* SwiftUI */
Color(red: 0.039, green: 0.247, blue: 0.875)
/* Android */
Color.parseColor("#0a3fdf")Accessibility — WCAG contrast
Aa
#0a3fdf on white: 7.53:1
AA ✓ pass · AA-large ✓ · AAA ✓
Aa
#0a3fdf on black: 2.79:1
AA ✗ fail · AA-large ✗ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red3.9%
Green24.7%
Blue87.5%
CMYK percentages
Cyan95.5%
Magenta71.7%
Yellow0.0%
Key (black)12.5%
Color previews
#0a3fdf text on a black background
contrast 2.79:1
Card sample
#0a3fdf text on a white background
contrast 7.53:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #0a3fdf;
Background color
Panel with #0a3fdf background
background-color: #0a3fdf;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #0a3fdf;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(10, 63, 223, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(10, 63, 223, 0.45);
Border & gradient
Gradient panel
border: 3px solid #0a3fdf; background: linear-gradient(135deg, #0a3fdf, #630ADF);