#0066ff
a balanced, electric blue · cool · closest name: royalblue
RGB
0, 102, 255
HSL
216°, 100%, 50%
CMYK
100, 60, 0, 0
Luminance
0.1672
Every format
| HEX | #0066ff |
| RGB | rgb(0, 102, 255) |
| HSL | hsl(216, 100%, 50%) |
| CMYK | cmyk(100%, 60%, 0%, 0%) |
| LAB | lab(47.9 35.2 -82.0) |
| LCH | lch(47.9 89.3 293.2) |
| OKLCH | oklch(0.564 0.241 260.8) |
Copy-ready code
/* CSS */
color: #0066ff;
background-color: #0066ff;
/* Tailwind (arbitrary) */
class="text-[#0066ff] bg-[#0066ff]"
/* SCSS */
$brand: #0066ff;
/* SwiftUI */
Color(red: 0.000, green: 0.400, blue: 1.000)
/* Android */
Color.parseColor("#0066ff")Accessibility — WCAG contrast
Aa
#0066ff on white: 4.83:1
AA ✓ pass · AA-large ✓ · AAA ✗
Aa
#0066ff on black: 4.34:1
AA ✗ fail · AA-large ✓ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red0.0%
Green40.0%
Blue100.0%
CMYK percentages
Cyan100.0%
Magenta60.0%
Yellow0.0%
Key (black)0.0%
Color previews
#0066ff text on a black background
contrast 4.34:1
Card sample
#0066ff text on a white background
contrast 4.83:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #0066ff;
Background color
Panel with #0066ff background
background-color: #0066ff;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #0066ff;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(0, 102, 255, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(0, 102, 255, 0.45);
Border & gradient
Gradient panel
border: 3px solid #0066ff; background: linear-gradient(135deg, #0066ff, #4400FF);