#3366bb
a balanced, vivid blue · cool · closest name: dodgerblue
RGB
51, 102, 187
HSL
218°, 57%, 47%
CMYK
73, 46, 0, 27
Luminance
0.1379
Every format
| HEX | #3366bb |
| RGB | rgb(51, 102, 187) |
| HSL | hsl(218, 57%, 47%) |
| CMYK | cmyk(73%, 46%, 0%, 27%) |
| LAB | lab(43.9 12.4 -49.8) |
| LCH | lch(43.9 51.3 283.9) |
| OKLCH | oklch(0.520 0.145 260.0) |
Copy-ready code
/* CSS */
color: #3366bb;
background-color: #3366bb;
/* Tailwind (arbitrary) */
class="text-[#3366bb] bg-[#3366bb]"
/* SCSS */
$brand: #3366bb;
/* SwiftUI */
Color(red: 0.200, green: 0.400, blue: 0.733)
/* Android */
Color.parseColor("#3366bb")Accessibility — WCAG contrast
Aa
#3366bb on white: 5.59:1
AA ✓ pass · AA-large ✓ · AAA ✗
Aa
#3366bb on black: 3.76:1
AA ✗ fail · AA-large ✓ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red20.0%
Green40.0%
Blue73.3%
CMYK percentages
Cyan72.7%
Magenta45.5%
Yellow0.0%
Key (black)26.7%
Color previews
#3366bb text on a black background
contrast 3.76:1
Card sample
#3366bb text on a white background
contrast 5.59:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #3366bb;
Background color
Panel with #3366bb background
background-color: #3366bb;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #3366bb;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(51, 102, 187, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(51, 102, 187, 0.45);
Border & gradient
Gradient panel
border: 3px solid #3366bb; background: linear-gradient(135deg, #3366bb, #5B33BB);