#42abdf
a balanced, vivid cyan · cool · closest name: steelblue
RGB
66, 171, 223
HSL
200°, 71%, 57%
CMYK
70, 23, 0, 13
Luminance
0.3561
Every format
| HEX | #42abdf |
| RGB | rgb(66, 171, 223) |
| HSL | hsl(200, 71%, 57%) |
| CMYK | cmyk(70%, 23%, 0%, 13%) |
| LAB | lab(66.2 -13.5 -34.9) |
| LCH | lch(66.2 37.5 248.9) |
| OKLCH | oklch(0.703 0.121 234.0) |
Copy-ready code
/* CSS */
color: #42abdf;
background-color: #42abdf;
/* Tailwind (arbitrary) */
class="text-[#42abdf] bg-[#42abdf]"
/* SCSS */
$brand: #42abdf;
/* SwiftUI */
Color(red: 0.259, green: 0.671, blue: 0.875)
/* Android */
Color.parseColor("#42abdf")Accessibility — WCAG contrast
Aa
#42abdf on white: 2.59:1
AA ✗ fail · AA-large ✗ · AAA ✗
Aa
#42abdf on black: 8.12:1
AA ✓ pass · AA-large ✓ · AAA ✓
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red25.9%
Green67.1%
Blue87.5%
CMYK percentages
Cyan70.4%
Magenta23.3%
Yellow0.0%
Key (black)12.5%
Color previews
#42abdf text on a black background
contrast 8.12:1
Card sample
#42abdf text on a white background
contrast 2.59:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #42abdf;
Background color
Panel with #42abdf background
background-color: #42abdf;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #42abdf;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(66, 171, 223, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(66, 171, 223, 0.45);
Border & gradient
Gradient panel
border: 3px solid #42abdf; background: linear-gradient(135deg, #42abdf, #4242DF);