#28b5df
a balanced, vivid cyan · cool · closest name: skyblue
RGB
40, 181, 223
HSL
194°, 74%, 52%
CMYK
82, 19, 0, 13
Luminance
0.3883
Every format
| HEX | #28b5df |
| RGB | rgb(40, 181, 223) |
| HSL | hsl(194, 74%, 52%) |
| CMYK | cmyk(82%, 19%, 0%, 13%) |
| LAB | lab(68.6 -21.6 -31.3) |
| LCH | lch(68.6 38.0 235.3) |
| OKLCH | oklch(0.721 0.127 223.8) |
Copy-ready code
/* CSS */
color: #28b5df;
background-color: #28b5df;
/* Tailwind (arbitrary) */
class="text-[#28b5df] bg-[#28b5df]"
/* SCSS */
$brand: #28b5df;
/* SwiftUI */
Color(red: 0.157, green: 0.710, blue: 0.875)
/* Android */
Color.parseColor("#28b5df")Accessibility — WCAG contrast
Aa
#28b5df on white: 2.40:1
AA ✗ fail · AA-large ✗ · AAA ✗
Aa
#28b5df on black: 8.77:1
AA ✓ pass · AA-large ✓ · AAA ✓
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red15.7%
Green71.0%
Blue87.5%
CMYK percentages
Cyan82.1%
Magenta18.8%
Yellow0.0%
Key (black)12.5%
Color previews
#28b5df text on a black background
contrast 8.77:1
Card sample
#28b5df text on a white background
contrast 2.40:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #28b5df;
Background color
Panel with #28b5df background
background-color: #28b5df;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #28b5df;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(40, 181, 223, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(40, 181, 223, 0.45);
Border & gradient
Gradient panel
border: 3px solid #28b5df; background: linear-gradient(135deg, #28b5df, #283BDF);