#66f0ff
a light, electric cyan · cool · closest name: cyan
RGB
102, 240, 255
HSL
186°, 100%, 70%
CMYK
60, 6, 0, 0
Luminance
0.7236
Every format
| HEX | #66f0ff |
| RGB | rgb(102, 240, 255) |
| HSL | hsl(186, 100%, 70%) |
| CMYK | cmyk(60%, 6%, 0%, 0%) |
| LAB | lab(88.1 -33.0 -18.5) |
| LCH | lch(88.1 37.8 209.2) |
| OKLCH | oklch(0.885 0.120 205.1) |
Copy-ready code
/* CSS */
color: #66f0ff;
background-color: #66f0ff;
/* Tailwind (arbitrary) */
class="text-[#66f0ff] bg-[#66f0ff]"
/* SCSS */
$brand: #66f0ff;
/* SwiftUI */
Color(red: 0.400, green: 0.941, blue: 1.000)
/* Android */
Color.parseColor("#66f0ff")Accessibility — WCAG contrast
Aa
#66f0ff on white: 1.36:1
AA ✗ fail · AA-large ✗ · AAA ✗
Aa
#66f0ff on black: 15.47:1
AA ✓ pass · AA-large ✓ · AAA ✓
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red40.0%
Green94.1%
Blue100.0%
CMYK percentages
Cyan60.0%
Magenta5.9%
Yellow0.0%
Key (black)0.0%
Color previews
#66f0ff text on a black background
contrast 15.47:1
Card sample
#66f0ff text on a white background
contrast 1.36:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #66f0ff;
Background color
Panel with #66f0ff background
background-color: #66f0ff;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #66f0ff;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(102, 240, 255, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(102, 240, 255, 0.45);
Border & gradient
Gradient panel
border: 3px solid #66f0ff; background: linear-gradient(135deg, #66f0ff, #668AFF);