#42faff
a balanced, electric cyan · cool · closest name: cyan
RGB
66, 250, 255
HSL
182°, 100%, 63%
CMYK
74, 2, 0, 0
Luminance
0.7675
Every format
| HEX | #42faff |
| RGB | rgb(66, 250, 255) |
| HSL | hsl(182, 100%, 63%) |
| CMYK | cmyk(74%, 2%, 0%, 0%) |
| LAB | lab(90.2 -42.5 -15.4) |
| LCH | lch(90.2 45.2 200.0) |
| OKLCH | oklch(0.899 0.141 197.7) |
Copy-ready code
/* CSS */
color: #42faff;
background-color: #42faff;
/* Tailwind (arbitrary) */
class="text-[#42faff] bg-[#42faff]"
/* SCSS */
$brand: #42faff;
/* SwiftUI */
Color(red: 0.259, green: 0.980, blue: 1.000)
/* Android */
Color.parseColor("#42faff")Accessibility — WCAG contrast
Aa
#42faff on white: 1.28:1
AA ✗ fail · AA-large ✗ · AAA ✗
Aa
#42faff on black: 16.35:1
AA ✓ pass · AA-large ✓ · AAA ✓
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red25.9%
Green98.0%
Blue100.0%
CMYK percentages
Cyan74.1%
Magenta2.0%
Yellow0.0%
Key (black)0.0%
Color previews
#42faff text on a black background
contrast 16.35:1
Card sample
#42faff text on a white background
contrast 1.28:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #42faff;
Background color
Panel with #42faff background
background-color: #42faff;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #42faff;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(66, 250, 255, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(66, 250, 255, 0.45);
Border & gradient
Gradient panel
border: 3px solid #42faff; background: linear-gradient(135deg, #42faff, #427CFF);