#66aacc
a balanced, vivid blue · cool · closest name: skyblue
RGB
102, 170, 204
HSL
200°, 50%, 60%
CMYK
50, 17, 0, 20
Luminance
0.3593
Every format
| HEX | #66aacc |
| RGB | rgb(102, 170, 204) |
| HSL | hsl(200, 50%, 60%) |
| CMYK | cmyk(50%, 17%, 0%, 20%) |
| LAB | lab(66.5 -12.2 -24.0) |
| LCH | lch(66.5 26.9 243.0) |
| OKLCH | oklch(0.706 0.085 231.4) |
Copy-ready code
/* CSS */
color: #66aacc;
background-color: #66aacc;
/* Tailwind (arbitrary) */
class="text-[#66aacc] bg-[#66aacc]"
/* SCSS */
$brand: #66aacc;
/* SwiftUI */
Color(red: 0.400, green: 0.667, blue: 0.800)
/* Android */
Color.parseColor("#66aacc")Accessibility — WCAG contrast
Aa
#66aacc on white: 2.57:1
AA ✗ fail · AA-large ✗ · AAA ✗
Aa
#66aacc on black: 8.19:1
AA ✓ pass · AA-large ✓ · AAA ✓
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red40.0%
Green66.7%
Blue80.0%
CMYK percentages
Cyan50.0%
Magenta16.7%
Yellow0.0%
Key (black)20.0%
Color previews
#66aacc text on a black background
contrast 8.19:1
Card sample
#66aacc text on a white background
contrast 2.57:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #66aacc;
Background color
Panel with #66aacc background
background-color: #66aacc;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #66aacc;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(102, 170, 204, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(102, 170, 204, 0.45);
Border & gradient
Gradient panel
border: 3px solid #66aacc; background: linear-gradient(135deg, #66aacc, #6666CC);