#66aadd
a balanced, vivid blue · cool · closest name: steelblue
RGB
102, 170, 221
HSL
206°, 64%, 63%
CMYK
54, 23, 0, 13
Luminance
0.3679
Every format
| HEX | #66aadd |
| RGB | rgb(102, 170, 221) |
| HSL | hsl(206, 64%, 63%) |
| CMYK | cmyk(54%, 23%, 0%, 13%) |
| LAB | lab(67.1 -7.2 -32.3) |
| LCH | lch(67.1 33.1 257.4) |
| OKLCH | oklch(0.713 0.102 242.5) |
Copy-ready code
/* CSS */
color: #66aadd;
background-color: #66aadd;
/* Tailwind (arbitrary) */
class="text-[#66aadd] bg-[#66aadd]"
/* SCSS */
$brand: #66aadd;
/* SwiftUI */
Color(red: 0.400, green: 0.667, blue: 0.867)
/* Android */
Color.parseColor("#66aadd")Accessibility — WCAG contrast
Aa
#66aadd on white: 2.51:1
AA ✗ fail · AA-large ✗ · AAA ✗
Aa
#66aadd on black: 8.36:1
AA ✓ pass · AA-large ✓ · AAA ✓
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red40.0%
Green66.7%
Blue86.7%
CMYK percentages
Cyan53.8%
Magenta23.1%
Yellow0.0%
Key (black)13.3%
Color previews
#66aadd text on a black background
contrast 8.36:1
Card sample
#66aadd text on a white background
contrast 2.51:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #66aadd;
Background color
Panel with #66aadd background
background-color: #66aadd;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #66aadd;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(102, 170, 221, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(102, 170, 221, 0.45);
Border & gradient
Gradient panel
border: 3px solid #66aadd; background: linear-gradient(135deg, #66aadd, #7166DD);