#3366ee
a balanced, electric blue · cool · closest name: royalblue
RGB
51, 102, 238
HSL
224°, 85%, 57%
CMYK
79, 57, 0, 7
Luminance
0.1638
Every format
| HEX | #3366ee |
| RGB | rgb(51, 102, 238) |
| HSL | hsl(224, 85%, 57%) |
| CMYK | cmyk(79%, 57%, 0%, 7%) |
| LAB | lab(47.5 31.3 -73.2) |
| LCH | lch(47.5 79.6 293.2) |
| OKLCH | oklch(0.559 0.212 264.7) |
Copy-ready code
/* CSS */
color: #3366ee;
background-color: #3366ee;
/* Tailwind (arbitrary) */
class="text-[#3366ee] bg-[#3366ee]"
/* SCSS */
$brand: #3366ee;
/* SwiftUI */
Color(red: 0.200, green: 0.400, blue: 0.933)
/* Android */
Color.parseColor("#3366ee")Accessibility — WCAG contrast
Aa
#3366ee on white: 4.91:1
AA ✓ pass · AA-large ✓ · AAA ✗
Aa
#3366ee on black: 4.28:1
AA ✗ fail · AA-large ✓ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red20.0%
Green40.0%
Blue93.3%
CMYK percentages
Cyan78.6%
Magenta57.1%
Yellow0.0%
Key (black)6.7%
Color previews
#3366ee text on a black background
contrast 4.28:1
Card sample
#3366ee text on a white background
contrast 4.91:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #3366ee;
Background color
Panel with #3366ee background
background-color: #3366ee;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #3366ee;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(51, 102, 238, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(51, 102, 238, 0.45);
Border & gradient
Gradient panel
border: 3px solid #3366ee; background: linear-gradient(135deg, #3366ee, #7D33EE);