#66c6ee
a light, electric cyan · cool · closest name: skyblue
RGB
102, 198, 238
HSL
198°, 80%, 67%
CMYK
57, 17, 0, 7
Luminance
0.4939
Every format
| HEX | #66c6ee |
| RGB | rgb(102, 198, 238) |
| HSL | hsl(198, 80%, 67%) |
| CMYK | cmyk(57%, 17%, 0%, 7%) |
| LAB | lab(75.7 -17.1 -28.4) |
| LCH | lch(75.7 33.1 238.9) |
| OKLCH | oklch(0.783 0.107 227.7) |
Copy-ready code
/* CSS */
color: #66c6ee;
background-color: #66c6ee;
/* Tailwind (arbitrary) */
class="text-[#66c6ee] bg-[#66c6ee]"
/* SCSS */
$brand: #66c6ee;
/* SwiftUI */
Color(red: 0.400, green: 0.776, blue: 0.933)
/* Android */
Color.parseColor("#66c6ee")Accessibility — WCAG contrast
Aa
#66c6ee on white: 1.93:1
AA ✗ fail · AA-large ✗ · AAA ✗
Aa
#66c6ee on black: 10.88:1
AA ✓ pass · AA-large ✓ · AAA ✓
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red40.0%
Green77.6%
Blue93.3%
CMYK percentages
Cyan57.1%
Magenta16.8%
Yellow0.0%
Key (black)6.7%
Color previews
#66c6ee text on a black background
contrast 10.88:1
Card sample
#66c6ee text on a white background
contrast 1.93:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #66c6ee;
Background color
Panel with #66c6ee background
background-color: #66c6ee;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #66c6ee;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(102, 198, 238, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(102, 198, 238, 0.45);
Border & gradient
Gradient panel
border: 3px solid #66c6ee; background: linear-gradient(135deg, #66c6ee, #666CEE);