#66bbdd
a balanced, vivid cyan · cool · closest name: skyblue
RGB
102, 187, 221
HSL
197°, 64%, 63%
CMYK
54, 15, 0, 13
Luminance
0.4359
Every format
| HEX | #66bbdd |
| RGB | rgb(102, 187, 221) |
| HSL | hsl(197, 64%, 63%) |
| CMYK | cmyk(54%, 15%, 0%, 13%) |
| LAB | lab(72.0 -16.3 -24.9) |
| LCH | lch(72.0 29.8 236.7) |
| OKLCH | oklch(0.751 0.096 226.3) |
Copy-ready code
/* CSS */
color: #66bbdd;
background-color: #66bbdd;
/* Tailwind (arbitrary) */
class="text-[#66bbdd] bg-[#66bbdd]"
/* SCSS */
$brand: #66bbdd;
/* SwiftUI */
Color(red: 0.400, green: 0.733, blue: 0.867)
/* Android */
Color.parseColor("#66bbdd")Accessibility — WCAG contrast
Aa
#66bbdd on white: 2.16:1
AA ✗ fail · AA-large ✗ · AAA ✗
Aa
#66bbdd on black: 9.72:1
AA ✓ pass · AA-large ✓ · AAA ✓
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red40.0%
Green73.3%
Blue86.7%
CMYK percentages
Cyan53.8%
Magenta15.4%
Yellow0.0%
Key (black)13.3%
Color previews
#66bbdd text on a black background
contrast 9.72:1
Card sample
#66bbdd text on a white background
contrast 2.16:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #66bbdd;
Background color
Panel with #66bbdd background
background-color: #66bbdd;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #66bbdd;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(102, 187, 221, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(102, 187, 221, 0.45);
Border & gradient
Gradient panel
border: 3px solid #66bbdd; background: linear-gradient(135deg, #66bbdd, #666CDD);