#42dcff
a balanced, electric cyan · cool · closest name: skyblue
RGB
66, 220, 255
HSL
191°, 100%, 63%
CMYK
74, 14, 0, 0
Luminance
0.5956
Every format
| HEX | #42dcff |
| RGB | rgb(66, 220, 255) |
| HSL | hsl(191, 100%, 63%) |
| CMYK | cmyk(74%, 14%, 0%, 0%) |
| LAB | lab(81.6 -28.4 -28.5) |
| LCH | lch(81.6 40.3 225.0) |
| OKLCH | oklch(0.830 0.133 216.8) |
Copy-ready code
/* CSS */
color: #42dcff;
background-color: #42dcff;
/* Tailwind (arbitrary) */
class="text-[#42dcff] bg-[#42dcff]"
/* SCSS */
$brand: #42dcff;
/* SwiftUI */
Color(red: 0.259, green: 0.863, blue: 1.000)
/* Android */
Color.parseColor("#42dcff")Accessibility — WCAG contrast
Aa
#42dcff on white: 1.63:1
AA ✗ fail · AA-large ✗ · AAA ✗
Aa
#42dcff on black: 12.91:1
AA ✓ pass · AA-large ✓ · AAA ✓
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red25.9%
Green86.3%
Blue100.0%
CMYK percentages
Cyan74.1%
Magenta13.7%
Yellow0.0%
Key (black)0.0%
Color previews
#42dcff text on a black background
contrast 12.91:1
Card sample
#42dcff text on a white background
contrast 1.63:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #42dcff;
Background color
Panel with #42dcff background
background-color: #42dcff;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #42dcff;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(66, 220, 255, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(66, 220, 255, 0.45);
Border & gradient
Gradient panel
border: 3px solid #42dcff; background: linear-gradient(135deg, #42dcff, #425EFF);