#42dfee
a balanced, electric cyan · cool · closest name: cyan
RGB
66, 223, 238
HSL
185°, 84%, 60%
CMYK
72, 6, 0, 7
Luminance
0.6011
Every format
| HEX | #42dfee |
| RGB | rgb(66, 223, 238) |
| HSL | hsl(185, 84%, 60%) |
| CMYK | cmyk(72%, 6%, 0%, 7%) |
| LAB | lab(81.9 -35.0 -19.0) |
| LCH | lch(81.9 39.8 208.5) |
| OKLCH | oklch(0.831 0.127 204.5) |
Copy-ready code
/* CSS */
color: #42dfee;
background-color: #42dfee;
/* Tailwind (arbitrary) */
class="text-[#42dfee] bg-[#42dfee]"
/* SCSS */
$brand: #42dfee;
/* SwiftUI */
Color(red: 0.259, green: 0.875, blue: 0.933)
/* Android */
Color.parseColor("#42dfee")Accessibility — WCAG contrast
Aa
#42dfee on white: 1.61:1
AA ✗ fail · AA-large ✗ · AAA ✗
Aa
#42dfee on black: 13.02:1
AA ✓ pass · AA-large ✓ · AAA ✓
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red25.9%
Green87.5%
Blue93.3%
CMYK percentages
Cyan72.3%
Magenta6.3%
Yellow0.0%
Key (black)6.7%
Color previews
#42dfee text on a black background
contrast 13.02:1
Card sample
#42dfee text on a white background
contrast 1.61:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #42dfee;
Background color
Panel with #42dfee background
background-color: #42dfee;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #42dfee;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(66, 223, 238, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(66, 223, 238, 0.45);
Border & gradient
Gradient panel
border: 3px solid #42dfee; background: linear-gradient(135deg, #42dfee, #426CEE);