#42dfeb
a balanced, electric cyan · cool · closest name: cyan
RGB
66, 223, 235
HSL
184°, 81%, 59%
CMYK
72, 5, 0, 8
Luminance
0.5993
Every format
| HEX | #42dfeb |
| RGB | rgb(66, 223, 235) |
| HSL | hsl(184, 81%, 59%) |
| CMYK | cmyk(72%, 5%, 0%, 8%) |
| LAB | lab(81.8 -35.9 -17.6) |
| LCH | lch(81.8 39.9 206.1) |
| OKLCH | oklch(0.829 0.127 202.6) |
Copy-ready code
/* CSS */
color: #42dfeb;
background-color: #42dfeb;
/* Tailwind (arbitrary) */
class="text-[#42dfeb] bg-[#42dfeb]"
/* SCSS */
$brand: #42dfeb;
/* SwiftUI */
Color(red: 0.259, green: 0.875, blue: 0.922)
/* Android */
Color.parseColor("#42dfeb")Accessibility — WCAG contrast
Aa
#42dfeb on white: 1.62:1
AA ✗ fail · AA-large ✗ · AAA ✗
Aa
#42dfeb on black: 12.99:1
AA ✓ pass · AA-large ✓ · AAA ✓
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red25.9%
Green87.5%
Blue92.2%
CMYK percentages
Cyan71.9%
Magenta5.1%
Yellow0.0%
Key (black)7.8%
Color previews
#42dfeb text on a black background
contrast 12.99:1
Card sample
#42dfeb text on a white background
contrast 1.62:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #42dfeb;
Background color
Panel with #42dfeb background
background-color: #42dfeb;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #42dfeb;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(66, 223, 235, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(66, 223, 235, 0.45);
Border & gradient
Gradient panel
border: 3px solid #42dfeb; background: linear-gradient(135deg, #42dfeb, #426EEB);