#42f2fd
a balanced, electric cyan · cool · closest name: cyan
RGB
66, 242, 253
HSL
184°, 98%, 63%
CMYK
74, 4, 0, 1
Luminance
0.7175
Every format
| HEX | #42f2fd |
| RGB | rgb(66, 242, 253) |
| HSL | hsl(184, 98%, 63%) |
| CMYK | cmyk(74%, 4%, 0%, 1%) |
| LAB | lab(87.8 -39.4 -17.9) |
| LCH | lch(87.8 43.3 204.5) |
| OKLCH | oklch(0.880 0.137 201.3) |
Copy-ready code
/* CSS */
color: #42f2fd;
background-color: #42f2fd;
/* Tailwind (arbitrary) */
class="text-[#42f2fd] bg-[#42f2fd]"
/* SCSS */
$brand: #42f2fd;
/* SwiftUI */
Color(red: 0.259, green: 0.949, blue: 0.992)
/* Android */
Color.parseColor("#42f2fd")Accessibility — WCAG contrast
Aa
#42f2fd on white: 1.37:1
AA ✗ fail · AA-large ✗ · AAA ✗
Aa
#42f2fd on black: 15.35:1
AA ✓ pass · AA-large ✓ · AAA ✓
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red25.9%
Green94.9%
Blue99.2%
CMYK percentages
Cyan73.9%
Magenta4.3%
Yellow0.0%
Key (black)0.8%
Color previews
#42f2fd text on a black background
contrast 15.35:1
Card sample
#42f2fd text on a white background
contrast 1.37:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #42f2fd;
Background color
Panel with #42f2fd background
background-color: #42f2fd;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #42f2fd;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(66, 242, 253, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(66, 242, 253, 0.45);
Border & gradient
Gradient panel
border: 3px solid #42f2fd; background: linear-gradient(135deg, #42f2fd, #4275FD);