#0366eb
a balanced, electric blue · cool · closest name: royalblue
RGB
3, 102, 235
HSL
214°, 98%, 47%
CMYK
99, 57, 0, 8
Luminance
0.1552
Every format
| HEX | #0366eb |
| RGB | rgb(3, 102, 235) |
| HSL | hsl(214, 98%, 47%) |
| CMYK | cmyk(99%, 57%, 0%, 8%) |
| LAB | lab(46.3 27.6 -73.4) |
| LCH | lch(46.3 78.4 290.6) |
| OKLCH | oklch(0.547 0.216 259.6) |
Copy-ready code
/* CSS */
color: #0366eb;
background-color: #0366eb;
/* Tailwind (arbitrary) */
class="text-[#0366eb] bg-[#0366eb]"
/* SCSS */
$brand: #0366eb;
/* SwiftUI */
Color(red: 0.012, green: 0.400, blue: 0.922)
/* Android */
Color.parseColor("#0366eb")Accessibility — WCAG contrast
Aa
#0366eb on white: 5.12:1
AA ✓ pass · AA-large ✓ · AAA ✗
Aa
#0366eb on black: 4.10:1
AA ✗ fail · AA-large ✓ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red1.2%
Green40.0%
Blue92.2%
CMYK percentages
Cyan98.7%
Magenta56.6%
Yellow0.0%
Key (black)7.8%
Color previews
#0366eb text on a black background
contrast 4.10:1
Card sample
#0366eb text on a white background
contrast 5.12:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #0366eb;
Background color
Panel with #0366eb background
background-color: #0366eb;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #0366eb;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(3, 102, 235, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(3, 102, 235, 0.45);
Border & gradient
Gradient panel
border: 3px solid #0366eb; background: linear-gradient(135deg, #0366eb, #3B03EB);