#66ffdd
a light, electric cyan · cool · closest name: aquamarine
RGB
102, 255, 221
HSL
167°, 100%, 70%
CMYK
60, 0, 13, 0
Luminance
0.7957
Every format
| HEX | #66ffdd |
| RGB | rgb(102, 255, 221) |
| HSL | hsl(167, 100%, 70%) |
| CMYK | cmyk(60%, 0%, 13%, 0%) |
| LAB | lab(91.5 -48.5 4.2) |
| LCH | lch(91.5 48.6 175.1) |
| OKLCH | oklch(0.909 0.139 175.7) |
Copy-ready code
/* CSS */
color: #66ffdd;
background-color: #66ffdd;
/* Tailwind (arbitrary) */
class="text-[#66ffdd] bg-[#66ffdd]"
/* SCSS */
$brand: #66ffdd;
/* SwiftUI */
Color(red: 0.400, green: 1.000, blue: 0.867)
/* Android */
Color.parseColor("#66ffdd")Accessibility — WCAG contrast
Aa
#66ffdd on white: 1.24:1
AA ✗ fail · AA-large ✗ · AAA ✗
Aa
#66ffdd on black: 16.91:1
AA ✓ pass · AA-large ✓ · AAA ✓
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red40.0%
Green100.0%
Blue86.7%
CMYK percentages
Cyan60.0%
Magenta0.0%
Yellow13.3%
Key (black)0.0%
Color previews
#66ffdd text on a black background
contrast 16.91:1
Card sample
#66ffdd text on a white background
contrast 1.24:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #66ffdd;
Background color
Panel with #66ffdd background
background-color: #66ffdd;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #66ffdd;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(102, 255, 221, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(102, 255, 221, 0.45);
Border & gradient
Gradient panel
border: 3px solid #66ffdd; background: linear-gradient(135deg, #66ffdd, #66BBFF);