#3366ff
a balanced, electric blue · warm · closest name: royalblue
RGB
51, 102, 255
HSL
225°, 100%, 60%
CMYK
80, 60, 0, 0
Luminance
0.1743
Every format
| HEX | #3366ff |
| RGB | rgb(51, 102, 255) |
| HSL | hsl(225, 100%, 60%) |
| CMYK | cmyk(80%, 60%, 0%, 0%) |
| LAB | lab(48.8 37.5 -80.5) |
| LCH | lch(48.8 88.8 295.0) |
| OKLCH | oklch(0.573 0.234 265.3) |
Copy-ready code
/* CSS */
color: #3366ff;
background-color: #3366ff;
/* Tailwind (arbitrary) */
class="text-[#3366ff] bg-[#3366ff]"
/* SCSS */
$brand: #3366ff;
/* SwiftUI */
Color(red: 0.200, green: 0.400, blue: 1.000)
/* Android */
Color.parseColor("#3366ff")Accessibility — WCAG contrast
Aa
#3366ff on white: 4.68:1
AA ✓ pass · AA-large ✓ · AAA ✗
Aa
#3366ff on black: 4.49:1
AA ✗ fail · AA-large ✓ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red20.0%
Green40.0%
Blue100.0%
CMYK percentages
Cyan80.0%
Magenta60.0%
Yellow0.0%
Key (black)0.0%
Color previews
#3366ff text on a black background
contrast 4.49:1
Card sample
#3366ff text on a white background
contrast 4.68:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #3366ff;
Background color
Panel with #3366ff background
background-color: #3366ff;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #3366ff;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(51, 102, 255, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(51, 102, 255, 0.45);
Border & gradient
Gradient panel
border: 3px solid #3366ff; background: linear-gradient(135deg, #3366ff, #8833FF);