#42fdfb
a balanced, electric cyan · cool · closest name: cyan
RGB
66, 253, 251
HSL
179°, 98%, 63%
CMYK
74, 0, 1, 1
Luminance
0.7837
Every format
| HEX | #42fdfb |
| RGB | rgb(66, 253, 251) |
| HSL | hsl(179, 98%, 63%) |
| CMYK | cmyk(74%, 0%, 1%, 1%) |
| LAB | lab(91.0 -44.9 -12.3) |
| LCH | lch(91.0 46.5 195.3) |
| OKLCH | oklch(0.905 0.143 193.8) |
Copy-ready code
/* CSS */
color: #42fdfb;
background-color: #42fdfb;
/* Tailwind (arbitrary) */
class="text-[#42fdfb] bg-[#42fdfb]"
/* SCSS */
$brand: #42fdfb;
/* SwiftUI */
Color(red: 0.259, green: 0.992, blue: 0.984)
/* Android */
Color.parseColor("#42fdfb")Accessibility — WCAG contrast
Aa
#42fdfb on white: 1.26:1
AA ✗ fail · AA-large ✗ · AAA ✗
Aa
#42fdfb on black: 16.67:1
AA ✓ pass · AA-large ✓ · AAA ✓
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red25.9%
Green99.2%
Blue98.4%
CMYK percentages
Cyan73.9%
Magenta0.0%
Yellow0.8%
Key (black)0.8%
Color previews
#42fdfb text on a black background
contrast 16.67:1
Card sample
#42fdfb text on a white background
contrast 1.26:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #42fdfb;
Background color
Panel with #42fdfb background
background-color: #42fdfb;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #42fdfb;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(66, 253, 251, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(66, 253, 251, 0.45);
Border & gradient
Gradient panel
border: 3px solid #42fdfb; background: linear-gradient(135deg, #42fdfb, #4282FD);