#66adef
a light, electric blue · cool · closest name: steelblue
RGB
102, 173, 239
HSL
209°, 81%, 67%
CMYK
57, 28, 0, 6
Luminance
0.3894
Every format
| HEX | #66adef |
| RGB | rgb(102, 173, 239) |
| HSL | hsl(209, 81%, 67%) |
| CMYK | cmyk(57%, 28%, 0%, 6%) |
| LAB | lab(68.7 -3.4 -39.7) |
| LCH | lch(68.7 39.9 265.2) |
| OKLCH | oklch(0.728 0.120 248.1) |
Copy-ready code
/* CSS */
color: #66adef;
background-color: #66adef;
/* Tailwind (arbitrary) */
class="text-[#66adef] bg-[#66adef]"
/* SCSS */
$brand: #66adef;
/* SwiftUI */
Color(red: 0.400, green: 0.678, blue: 0.937)
/* Android */
Color.parseColor("#66adef")Accessibility — WCAG contrast
Aa
#66adef on white: 2.39:1
AA ✗ fail · AA-large ✗ · AAA ✗
Aa
#66adef on black: 8.79:1
AA ✓ pass · AA-large ✓ · AAA ✓
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red40.0%
Green67.8%
Blue93.7%
CMYK percentages
Cyan57.3%
Magenta27.6%
Yellow0.0%
Key (black)6.3%
Color previews
#66adef text on a black background
contrast 8.79:1
Card sample
#66adef text on a white background
contrast 2.39:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #66adef;
Background color
Panel with #66adef background
background-color: #66adef;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #66adef;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(102, 173, 239, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(102, 173, 239, 0.45);
Border & gradient
Gradient panel
border: 3px solid #66adef; background: linear-gradient(135deg, #66adef, #7A66EF);