#66ffe3
a light, electric cyan · cool · closest name: aquamarine
RGB
102, 255, 227
HSL
169°, 100%, 70%
CMYK
60, 0, 11, 0
Luminance
0.7989
Every format
| HEX | #66ffe3 |
| RGB | rgb(102, 255, 227) |
| HSL | hsl(169, 100%, 70%) |
| CMYK | cmyk(60%, 0%, 11%, 0%) |
| LAB | lab(91.6 -47.0 1.3) |
| LCH | lch(91.6 47.0 178.4) |
| OKLCH | oklch(0.911 0.136 178.9) |
Copy-ready code
/* CSS */
color: #66ffe3;
background-color: #66ffe3;
/* Tailwind (arbitrary) */
class="text-[#66ffe3] bg-[#66ffe3]"
/* SCSS */
$brand: #66ffe3;
/* SwiftUI */
Color(red: 0.400, green: 1.000, blue: 0.890)
/* Android */
Color.parseColor("#66ffe3")Accessibility — WCAG contrast
Aa
#66ffe3 on white: 1.24:1
AA ✗ fail · AA-large ✗ · AAA ✗
Aa
#66ffe3 on black: 16.98:1
AA ✓ pass · AA-large ✓ · AAA ✓
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red40.0%
Green100.0%
Blue89.0%
CMYK percentages
Cyan60.0%
Magenta0.0%
Yellow11.0%
Key (black)0.0%
Color previews
#66ffe3 text on a black background
contrast 16.98:1
Card sample
#66ffe3 text on a white background
contrast 1.24:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #66ffe3;
Background color
Panel with #66ffe3 background
background-color: #66ffe3;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #66ffe3;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(102, 255, 227, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(102, 255, 227, 0.45);
Border & gradient
Gradient panel
border: 3px solid #66ffe3; background: linear-gradient(135deg, #66ffe3, #66B5FF);