#0366fa
a balanced, electric blue · cool · closest name: royalblue
RGB
3, 102, 250
HSL
216°, 98%, 50%
CMYK
99, 59, 0, 2
Luminance
0.1642
Every format
| HEX | #0366fa |
| RGB | rgb(3, 102, 250) |
| HSL | hsl(216, 98%, 50%) |
| CMYK | cmyk(99%, 59%, 0%, 2%) |
| LAB | lab(47.5 33.4 -79.8) |
| LCH | lch(47.5 86.5 292.7) |
| OKLCH | oklch(0.559 0.234 260.6) |
Copy-ready code
/* CSS */
color: #0366fa;
background-color: #0366fa;
/* Tailwind (arbitrary) */
class="text-[#0366fa] bg-[#0366fa]"
/* SCSS */
$brand: #0366fa;
/* SwiftUI */
Color(red: 0.012, green: 0.400, blue: 0.980)
/* Android */
Color.parseColor("#0366fa")Accessibility — WCAG contrast
Aa
#0366fa on white: 4.90:1
AA ✓ pass · AA-large ✓ · AAA ✗
Aa
#0366fa on black: 4.28:1
AA ✗ fail · AA-large ✓ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red1.2%
Green40.0%
Blue98.0%
CMYK percentages
Cyan98.8%
Magenta59.2%
Yellow0.0%
Key (black)2.0%
Color previews
#0366fa text on a black background
contrast 4.28:1
Card sample
#0366fa text on a white background
contrast 4.90:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #0366fa;
Background color
Panel with #0366fa background
background-color: #0366fa;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #0366fa;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(3, 102, 250, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(3, 102, 250, 0.45);
Border & gradient
Gradient panel
border: 3px solid #0366fa; background: linear-gradient(135deg, #0366fa, #4503FA);