#42dffc
a balanced, electric cyan · cool · closest name: skyblue
RGB
66, 223, 252
HSL
189°, 97%, 62%
CMYK
74, 12, 0, 1
Luminance
0.6096
Every format
| HEX | #42dffc |
| RGB | rgb(66, 223, 252) |
| HSL | hsl(189, 97%, 62%) |
| CMYK | cmyk(74%, 12%, 0%, 1%) |
| LAB | lab(82.4 -30.8 -25.7) |
| LCH | lch(82.4 40.1 219.9) |
| OKLCH | oklch(0.836 0.132 213.0) |
Copy-ready code
/* CSS */
color: #42dffc;
background-color: #42dffc;
/* Tailwind (arbitrary) */
class="text-[#42dffc] bg-[#42dffc]"
/* SCSS */
$brand: #42dffc;
/* SwiftUI */
Color(red: 0.259, green: 0.875, blue: 0.988)
/* Android */
Color.parseColor("#42dffc")Accessibility — WCAG contrast
Aa
#42dffc on white: 1.59:1
AA ✗ fail · AA-large ✗ · AAA ✗
Aa
#42dffc on black: 13.19:1
AA ✓ pass · AA-large ✓ · AAA ✓
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red25.9%
Green87.5%
Blue98.8%
CMYK percentages
Cyan73.8%
Magenta11.5%
Yellow0.0%
Key (black)1.2%
Color previews
#42dffc text on a black background
contrast 13.19:1
Card sample
#42dffc text on a white background
contrast 1.59:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #42dffc;
Background color
Panel with #42dffc background
background-color: #42dffc;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #42dffc;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(66, 223, 252, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(66, 223, 252, 0.45);
Border & gradient
Gradient panel
border: 3px solid #42dffc; background: linear-gradient(135deg, #42dffc, #4263FC);