#3366cc
a balanced, vivid blue · cool · closest name: royalblue
RGB
51, 102, 204
HSL
220°, 60%, 50%
CMYK
75, 50, 0, 20
Luminance
0.1457
Every format
| HEX | #3366cc |
| RGB | rgb(51, 102, 204) |
| HSL | hsl(220, 60%, 50%) |
| CMYK | cmyk(75%, 50%, 0%, 20%) |
| LAB | lab(45.0 18.7 -57.9) |
| LCH | lch(45.0 60.8 287.9) |
| OKLCH | oklch(0.532 0.168 262.3) |
Copy-ready code
/* CSS */
color: #3366cc;
background-color: #3366cc;
/* Tailwind (arbitrary) */
class="text-[#3366cc] bg-[#3366cc]"
/* SCSS */
$brand: #3366cc;
/* SwiftUI */
Color(red: 0.200, green: 0.400, blue: 0.800)
/* Android */
Color.parseColor("#3366cc")Accessibility — WCAG contrast
Aa
#3366cc on white: 5.37:1
AA ✓ pass · AA-large ✓ · AAA ✗
Aa
#3366cc on black: 3.91:1
AA ✗ fail · AA-large ✓ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red20.0%
Green40.0%
Blue80.0%
CMYK percentages
Cyan75.0%
Magenta50.0%
Yellow0.0%
Key (black)20.0%
Color previews
#3366cc text on a black background
contrast 3.91:1
Card sample
#3366cc text on a white background
contrast 5.37:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #3366cc;
Background color
Panel with #3366cc background
background-color: #3366cc;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #3366cc;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(51, 102, 204, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(51, 102, 204, 0.45);
Border & gradient
Gradient panel
border: 3px solid #3366cc; background: linear-gradient(135deg, #3366cc, #6633CC);