#66ccdd
a balanced, vivid cyan · cool · closest name: skyblue
RGB
102, 204, 221
HSL
189°, 64%, 63%
CMYK
54, 8, 0, 13
Luminance
0.5123
Every format
| HEX | #66ccdd |
| RGB | rgb(102, 204, 221) |
| HSL | hsl(189, 64%, 63%) |
| CMYK | cmyk(54%, 8%, 0%, 13%) |
| LAB | lab(76.8 -25.0 -17.5) |
| LCH | lch(76.8 30.5 215.0) |
| OKLCH | oklch(0.790 0.098 209.7) |
Copy-ready code
/* CSS */
color: #66ccdd;
background-color: #66ccdd;
/* Tailwind (arbitrary) */
class="text-[#66ccdd] bg-[#66ccdd]"
/* SCSS */
$brand: #66ccdd;
/* SwiftUI */
Color(red: 0.400, green: 0.800, blue: 0.867)
/* Android */
Color.parseColor("#66ccdd")Accessibility — WCAG contrast
Aa
#66ccdd on white: 1.87:1
AA ✗ fail · AA-large ✗ · AAA ✗
Aa
#66ccdd on black: 11.25:1
AA ✓ pass · AA-large ✓ · AAA ✓
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red40.0%
Green80.0%
Blue86.7%
CMYK percentages
Cyan53.8%
Magenta7.7%
Yellow0.0%
Key (black)13.3%
Color previews
#66ccdd text on a black background
contrast 11.25:1
Card sample
#66ccdd text on a white background
contrast 1.87:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #66ccdd;
Background color
Panel with #66ccdd background
background-color: #66ccdd;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #66ccdd;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(102, 204, 221, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(102, 204, 221, 0.45);
Border & gradient
Gradient panel
border: 3px solid #66ccdd; background: linear-gradient(135deg, #66ccdd, #667DDD);