#66eeff
a light, electric cyan · cool · closest name: cyan
RGB
102, 238, 255
HSL
187°, 100%, 70%
CMYK
60, 7, 0, 0
Luminance
0.7119
Every format
| HEX | #66eeff |
| RGB | rgb(102, 238, 255) |
| HSL | hsl(187, 100%, 70%) |
| CMYK | cmyk(60%, 7%, 0%, 0%) |
| LAB | lab(87.6 -32.1 -19.3) |
| LCH | lch(87.6 37.5 211.0) |
| OKLCH | oklch(0.880 0.120 206.6) |
Copy-ready code
/* CSS */
color: #66eeff;
background-color: #66eeff;
/* Tailwind (arbitrary) */
class="text-[#66eeff] bg-[#66eeff]"
/* SCSS */
$brand: #66eeff;
/* SwiftUI */
Color(red: 0.400, green: 0.933, blue: 1.000)
/* Android */
Color.parseColor("#66eeff")Accessibility — WCAG contrast
Aa
#66eeff on white: 1.38:1
AA ✗ fail · AA-large ✗ · AAA ✗
Aa
#66eeff on black: 15.24:1
AA ✓ pass · AA-large ✓ · AAA ✓
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red40.0%
Green93.3%
Blue100.0%
CMYK percentages
Cyan60.0%
Magenta6.7%
Yellow0.0%
Key (black)0.0%
Color previews
#66eeff text on a black background
contrast 15.24:1
Card sample
#66eeff text on a white background
contrast 1.38:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #66eeff;
Background color
Panel with #66eeff background
background-color: #66eeff;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #66eeff;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(102, 238, 255, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(102, 238, 255, 0.45);
Border & gradient
Gradient panel
border: 3px solid #66eeff; background: linear-gradient(135deg, #66eeff, #6688FF);