#42bcdf
a balanced, vivid cyan · cool · closest name: skyblue
RGB
66, 188, 223
HSL
193°, 71%, 57%
CMYK
70, 16, 0, 13
Luminance
0.4245
Every format
| HEX | #42bcdf |
| RGB | rgb(66, 188, 223) |
| HSL | hsl(193, 71%, 57%) |
| CMYK | cmyk(70%, 16%, 0%, 13%) |
| LAB | lab(71.2 -22.4 -27.3) |
| LCH | lch(71.2 35.3 230.6) |
| OKLCH | oklch(0.742 0.116 220.9) |
Copy-ready code
/* CSS */
color: #42bcdf;
background-color: #42bcdf;
/* Tailwind (arbitrary) */
class="text-[#42bcdf] bg-[#42bcdf]"
/* SCSS */
$brand: #42bcdf;
/* SwiftUI */
Color(red: 0.259, green: 0.737, blue: 0.875)
/* Android */
Color.parseColor("#42bcdf")Accessibility — WCAG contrast
Aa
#42bcdf on white: 2.21:1
AA ✗ fail · AA-large ✗ · AAA ✗
Aa
#42bcdf on black: 9.49:1
AA ✓ pass · AA-large ✓ · AAA ✓
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red25.9%
Green73.7%
Blue87.5%
CMYK percentages
Cyan70.4%
Magenta15.7%
Yellow0.0%
Key (black)12.5%
Color previews
#42bcdf text on a black background
contrast 9.49:1
Card sample
#42bcdf text on a white background
contrast 2.21:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #42bcdf;
Background color
Panel with #42bcdf background
background-color: #42bcdf;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #42bcdf;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(66, 188, 223, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(66, 188, 223, 0.45);
Border & gradient
Gradient panel
border: 3px solid #42bcdf; background: linear-gradient(135deg, #42bcdf, #4253DF);