#66ffee
a light, electric cyan · cool · closest name: turquoise
RGB
102, 255, 238
HSL
173°, 100%, 70%
CMYK
60, 0, 7, 0
Luminance
0.8052
Every format
| HEX | #66ffee |
| RGB | rgb(102, 255, 238) |
| HSL | hsl(173, 100%, 70%) |
| CMYK | cmyk(60%, 0%, 7%, 0%) |
| LAB | lab(91.9 -44.3 -4.0) |
| LCH | lch(91.9 44.5 185.1) |
| OKLCH | oklch(0.914 0.132 185.0) |
Copy-ready code
/* CSS */
color: #66ffee;
background-color: #66ffee;
/* Tailwind (arbitrary) */
class="text-[#66ffee] bg-[#66ffee]"
/* SCSS */
$brand: #66ffee;
/* SwiftUI */
Color(red: 0.400, green: 1.000, blue: 0.933)
/* Android */
Color.parseColor("#66ffee")Accessibility — WCAG contrast
Aa
#66ffee on white: 1.23:1
AA ✗ fail · AA-large ✗ · AAA ✗
Aa
#66ffee on black: 17.10:1
AA ✓ pass · AA-large ✓ · AAA ✓
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red40.0%
Green100.0%
Blue93.3%
CMYK percentages
Cyan60.0%
Magenta0.0%
Yellow6.7%
Key (black)0.0%
Color previews
#66ffee text on a black background
contrast 17.10:1
Card sample
#66ffee text on a white background
contrast 1.23:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #66ffee;
Background color
Panel with #66ffee background
background-color: #66ffee;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #66ffee;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(102, 255, 238, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(102, 255, 238, 0.45);
Border & gradient
Gradient panel
border: 3px solid #66ffee; background: linear-gradient(135deg, #66ffee, #66AAFF);