#42b2eb
a balanced, electric blue · cool · closest name: skyblue
RGB
66, 178, 235
HSL
200°, 81%, 59%
CMYK
72, 24, 0, 8
Luminance
0.3900
Every format
| HEX | #42b2eb |
| RGB | rgb(66, 178, 235) |
| HSL | hsl(200, 81%, 59%) |
| CMYK | cmyk(72%, 24%, 0%, 8%) |
| LAB | lab(68.8 -13.3 -37.6) |
| LCH | lch(68.8 39.9 250.5) |
| OKLCH | oklch(0.725 0.129 235.0) |
Copy-ready code
/* CSS */
color: #42b2eb;
background-color: #42b2eb;
/* Tailwind (arbitrary) */
class="text-[#42b2eb] bg-[#42b2eb]"
/* SCSS */
$brand: #42b2eb;
/* SwiftUI */
Color(red: 0.259, green: 0.698, blue: 0.922)
/* Android */
Color.parseColor("#42b2eb")Accessibility — WCAG contrast
Aa
#42b2eb on white: 2.39:1
AA ✗ fail · AA-large ✗ · AAA ✗
Aa
#42b2eb on black: 8.80:1
AA ✓ pass · AA-large ✓ · AAA ✓
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red25.9%
Green69.8%
Blue92.2%
CMYK percentages
Cyan71.9%
Magenta24.3%
Yellow0.0%
Key (black)7.8%
Color previews
#42b2eb text on a black background
contrast 8.80:1
Card sample
#42b2eb text on a white background
contrast 2.39:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #42b2eb;
Background color
Panel with #42b2eb background
background-color: #42b2eb;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #42b2eb;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(66, 178, 235, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(66, 178, 235, 0.45);
Border & gradient
Gradient panel
border: 3px solid #42b2eb; background: linear-gradient(135deg, #42b2eb, #4242EB);