#66dadd
a balanced, vivid cyan · cool · closest name: turquoise
RGB
102, 218, 221
HSL
182°, 64%, 63%
CMYK
54, 1, 0, 13
Luminance
0.5819
Every format
| HEX | #66dadd |
| RGB | rgb(102, 218, 221) |
| HSL | hsl(182, 64%, 63%) |
| CMYK | cmyk(54%, 1%, 0%, 13%) |
| LAB | lab(80.8 -31.8 -11.5) |
| LCH | lch(80.8 33.8 199.8) |
| OKLCH | oklch(0.823 0.105 197.6) |
Copy-ready code
/* CSS */
color: #66dadd;
background-color: #66dadd;
/* Tailwind (arbitrary) */
class="text-[#66dadd] bg-[#66dadd]"
/* SCSS */
$brand: #66dadd;
/* SwiftUI */
Color(red: 0.400, green: 0.855, blue: 0.867)
/* Android */
Color.parseColor("#66dadd")Accessibility — WCAG contrast
Aa
#66dadd on white: 1.66:1
AA ✗ fail · AA-large ✗ · AAA ✗
Aa
#66dadd on black: 12.64:1
AA ✓ pass · AA-large ✓ · AAA ✓
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red40.0%
Green85.5%
Blue86.7%
CMYK percentages
Cyan53.8%
Magenta1.4%
Yellow0.0%
Key (black)13.3%
Color previews
#66dadd text on a black background
contrast 12.64:1
Card sample
#66dadd text on a white background
contrast 1.66:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #66dadd;
Background color
Panel with #66dadd background
background-color: #66dadd;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #66dadd;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(102, 218, 221, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(102, 218, 221, 0.45);
Border & gradient
Gradient panel
border: 3px solid #66dadd; background: linear-gradient(135deg, #66dadd, #668BDD);