#42bbcf
a balanced, vivid cyan · cool · closest name: skyblue
RGB
66, 187, 207
HSL
189°, 60%, 54%
CMYK
68, 10, 0, 19
Luminance
0.4120
Every format
| HEX | #42bbcf |
| RGB | rgb(66, 187, 207) |
| HSL | hsl(189, 60%, 54%) |
| CMYK | cmyk(68%, 10%, 0%, 19%) |
| LAB | lab(70.3 -26.9 -19.9) |
| LCH | lch(70.3 33.4 216.5) |
| OKLCH | oklch(0.734 0.108 210.6) |
Copy-ready code
/* CSS */
color: #42bbcf;
background-color: #42bbcf;
/* Tailwind (arbitrary) */
class="text-[#42bbcf] bg-[#42bbcf]"
/* SCSS */
$brand: #42bbcf;
/* SwiftUI */
Color(red: 0.259, green: 0.733, blue: 0.812)
/* Android */
Color.parseColor("#42bbcf")Accessibility — WCAG contrast
Aa
#42bbcf on white: 2.27:1
AA ✗ fail · AA-large ✗ · AAA ✗
Aa
#42bbcf on black: 9.24:1
AA ✓ pass · AA-large ✓ · AAA ✓
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red25.9%
Green73.3%
Blue81.2%
CMYK percentages
Cyan68.1%
Magenta9.7%
Yellow0.0%
Key (black)18.8%
Color previews
#42bbcf text on a black background
contrast 9.24:1
Card sample
#42bbcf text on a white background
contrast 2.27:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #42bbcf;
Background color
Panel with #42bbcf background
background-color: #42bbcf;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #42bbcf;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(66, 187, 207, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(66, 187, 207, 0.45);
Border & gradient
Gradient panel
border: 3px solid #42bbcf; background: linear-gradient(135deg, #42bbcf, #425DCF);