#40bdf9
a balanced, electric cyan · cool · closest name: skyblue
RGB
64, 189, 249
HSL
200°, 94%, 61%
CMYK
74, 24, 0, 2
Luminance
0.4432
Every format
| HEX | #40bdf9 |
| RGB | rgb(64, 189, 249) |
| HSL | hsl(200, 94%, 61%) |
| CMYK | cmyk(74%, 24%, 0%, 2%) |
| LAB | lab(72.4 -14.8 -39.4) |
| LCH | lch(72.4 42.1 249.4) |
| OKLCH | oklch(0.756 0.137 234.0) |
Copy-ready code
/* CSS */
color: #40bdf9;
background-color: #40bdf9;
/* Tailwind (arbitrary) */
class="text-[#40bdf9] bg-[#40bdf9]"
/* SCSS */
$brand: #40bdf9;
/* SwiftUI */
Color(red: 0.251, green: 0.741, blue: 0.976)
/* Android */
Color.parseColor("#40bdf9")Accessibility — WCAG contrast
Aa
#40bdf9 on white: 2.13:1
AA ✗ fail · AA-large ✗ · AAA ✗
Aa
#40bdf9 on black: 9.86:1
AA ✓ pass · AA-large ✓ · AAA ✓
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red25.1%
Green74.1%
Blue97.6%
CMYK percentages
Cyan74.3%
Magenta24.1%
Yellow0.0%
Key (black)2.4%
Color previews
#40bdf9 text on a black background
contrast 9.86:1
Card sample
#40bdf9 text on a white background
contrast 2.13:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #40bdf9;
Background color
Panel with #40bdf9 background
background-color: #40bdf9;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #40bdf9;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(64, 189, 249, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(64, 189, 249, 0.45);
Border & gradient
Gradient panel
border: 3px solid #40bdf9; background: linear-gradient(135deg, #40bdf9, #4042F9);