#42fdf0
a balanced, electric cyan · cool · closest name: cyan
RGB
66, 253, 240
HSL
176°, 98%, 63%
CMYK
74, 0, 5, 1
Luminance
0.7770
Every format
| HEX | #42fdf0 |
| RGB | rgb(66, 253, 240) |
| HSL | hsl(176, 98%, 63%) |
| CMYK | cmyk(74%, 0%, 5%, 1%) |
| LAB | lab(90.6 -47.9 -7.0) |
| LCH | lch(90.6 48.4 188.3) |
| OKLCH | oklch(0.902 0.145 187.8) |
Copy-ready code
/* CSS */
color: #42fdf0;
background-color: #42fdf0;
/* Tailwind (arbitrary) */
class="text-[#42fdf0] bg-[#42fdf0]"
/* SCSS */
$brand: #42fdf0;
/* SwiftUI */
Color(red: 0.259, green: 0.992, blue: 0.941)
/* Android */
Color.parseColor("#42fdf0")Accessibility — WCAG contrast
Aa
#42fdf0 on white: 1.27:1
AA ✗ fail · AA-large ✗ · AAA ✗
Aa
#42fdf0 on black: 16.54:1
AA ✓ pass · AA-large ✓ · AAA ✓
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red25.9%
Green99.2%
Blue94.1%
CMYK percentages
Cyan73.9%
Magenta0.0%
Yellow5.1%
Key (black)0.8%
Color previews
#42fdf0 text on a black background
contrast 16.54:1
Card sample
#42fdf0 text on a white background
contrast 1.27:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #42fdf0;
Background color
Panel with #42fdf0 background
background-color: #42fdf0;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #42fdf0;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(66, 253, 240, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(66, 253, 240, 0.45);
Border & gradient
Gradient panel
border: 3px solid #42fdf0; background: linear-gradient(135deg, #42fdf0, #428DFD);