#42ecfd
a balanced, electric cyan · cool · closest name: cyan
RGB
66, 236, 253
HSL
186°, 98%, 63%
CMYK
74, 7, 0, 1
Luminance
0.6824
Every format
| HEX | #42ecfd |
| RGB | rgb(66, 236, 253) |
| HSL | hsl(186, 98%, 63%) |
| CMYK | cmyk(74%, 7%, 0%, 1%) |
| LAB | lab(86.1 -36.7 -20.5) |
| LCH | lch(86.1 42.0 209.3) |
| OKLCH | oklch(0.866 0.135 205.1) |
Copy-ready code
/* CSS */
color: #42ecfd;
background-color: #42ecfd;
/* Tailwind (arbitrary) */
class="text-[#42ecfd] bg-[#42ecfd]"
/* SCSS */
$brand: #42ecfd;
/* SwiftUI */
Color(red: 0.259, green: 0.925, blue: 0.992)
/* Android */
Color.parseColor("#42ecfd")Accessibility — WCAG contrast
Aa
#42ecfd on white: 1.43:1
AA ✗ fail · AA-large ✗ · AAA ✗
Aa
#42ecfd on black: 14.65:1
AA ✓ pass · AA-large ✓ · AAA ✓
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red25.9%
Green92.5%
Blue99.2%
CMYK percentages
Cyan73.9%
Magenta6.7%
Yellow0.0%
Key (black)0.8%
Color previews
#42ecfd text on a black background
contrast 14.65:1
Card sample
#42ecfd text on a white background
contrast 1.43:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #42ecfd;
Background color
Panel with #42ecfd background
background-color: #42ecfd;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #42ecfd;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(66, 236, 253, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(66, 236, 253, 0.45);
Border & gradient
Gradient panel
border: 3px solid #42ecfd; background: linear-gradient(135deg, #42ecfd, #426FFD);