#66e9da
a light, vivid cyan · cool · closest name: turquoise
RGB
102, 233, 218
HSL
173°, 75%, 66%
CMYK
56, 0, 6, 9
Luminance
0.6616
Every format
| HEX | #66e9da |
| RGB | rgb(102, 233, 218) |
| HSL | hsl(173, 75%, 66%) |
| CMYK | cmyk(56%, 0%, 6%, 9%) |
| LAB | lab(85.1 -39.5 -3.6) |
| LCH | lch(85.1 39.7 185.2) |
| OKLCH | oklch(0.857 0.117 185.0) |
Copy-ready code
/* CSS */
color: #66e9da;
background-color: #66e9da;
/* Tailwind (arbitrary) */
class="text-[#66e9da] bg-[#66e9da]"
/* SCSS */
$brand: #66e9da;
/* SwiftUI */
Color(red: 0.400, green: 0.914, blue: 0.855)
/* Android */
Color.parseColor("#66e9da")Accessibility — WCAG contrast
Aa
#66e9da on white: 1.48:1
AA ✗ fail · AA-large ✗ · AAA ✗
Aa
#66e9da on black: 14.23:1
AA ✓ pass · AA-large ✓ · AAA ✓
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red40.0%
Green91.4%
Blue85.5%
CMYK percentages
Cyan56.2%
Magenta0.0%
Yellow6.4%
Key (black)8.6%
Color previews
#66e9da text on a black background
contrast 14.23:1
Card sample
#66e9da text on a white background
contrast 1.48:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #66e9da;
Background color
Panel with #66e9da background
background-color: #66e9da;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #66e9da;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(102, 233, 218, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(102, 233, 218, 0.45);
Border & gradient
Gradient panel
border: 3px solid #66e9da; background: linear-gradient(135deg, #66e9da, #66A1E9);