#66eecc
a light, electric cyan · cool · closest name: aquamarine
RGB
102, 238, 204
HSL
165°, 80%, 67%
CMYK
57, 0, 14, 7
Luminance
0.6833
Every format
| HEX | #66eecc |
| RGB | rgb(102, 238, 204) |
| HSL | hsl(165, 80%, 67%) |
| CMYK | cmyk(57%, 0%, 14%, 7%) |
| LAB | lab(86.2 -45.1 5.3) |
| LCH | lch(86.2 45.5 173.3) |
| OKLCH | oklch(0.865 0.129 174.0) |
Copy-ready code
/* CSS */
color: #66eecc;
background-color: #66eecc;
/* Tailwind (arbitrary) */
class="text-[#66eecc] bg-[#66eecc]"
/* SCSS */
$brand: #66eecc;
/* SwiftUI */
Color(red: 0.400, green: 0.933, blue: 0.800)
/* Android */
Color.parseColor("#66eecc")Accessibility — WCAG contrast
Aa
#66eecc on white: 1.43:1
AA ✗ fail · AA-large ✗ · AAA ✗
Aa
#66eecc on black: 14.67:1
AA ✓ pass · AA-large ✓ · AAA ✓
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red40.0%
Green93.3%
Blue80.0%
CMYK percentages
Cyan57.1%
Magenta0.0%
Yellow14.3%
Key (black)6.7%
Color previews
#66eecc text on a black background
contrast 14.67:1
Card sample
#66eecc text on a white background
contrast 1.43:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #66eecc;
Background color
Panel with #66eecc background
background-color: #66eecc;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #66eecc;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(102, 238, 204, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(102, 238, 204, 0.45);
Border & gradient
Gradient panel
border: 3px solid #66eecc; background: linear-gradient(135deg, #66eecc, #66B5EE);