#40c4f9
a balanced, electric cyan · cool · closest name: skyblue
RGB
64, 196, 249
HSL
197°, 94%, 61%
CMYK
74, 21, 0, 2
Luminance
0.4741
Every format
| HEX | #40c4f9 |
| RGB | rgb(64, 196, 249) |
| HSL | hsl(197, 94%, 61%) |
| CMYK | cmyk(74%, 21%, 0%, 2%) |
| LAB | lab(74.5 -18.5 -36.3) |
| LCH | lch(74.5 40.7 243.0) |
| OKLCH | oklch(0.772 0.134 229.5) |
Copy-ready code
/* CSS */
color: #40c4f9;
background-color: #40c4f9;
/* Tailwind (arbitrary) */
class="text-[#40c4f9] bg-[#40c4f9]"
/* SCSS */
$brand: #40c4f9;
/* SwiftUI */
Color(red: 0.251, green: 0.769, blue: 0.976)
/* Android */
Color.parseColor("#40c4f9")Accessibility — WCAG contrast
Aa
#40c4f9 on white: 2.00:1
AA ✗ fail · AA-large ✗ · AAA ✗
Aa
#40c4f9 on black: 10.48:1
AA ✓ pass · AA-large ✓ · AAA ✓
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red25.1%
Green76.9%
Blue97.6%
CMYK percentages
Cyan74.3%
Magenta21.3%
Yellow0.0%
Key (black)2.4%
Color previews
#40c4f9 text on a black background
contrast 10.48:1
Card sample
#40c4f9 text on a white background
contrast 2.00:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #40c4f9;
Background color
Panel with #40c4f9 background
background-color: #40c4f9;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #40c4f9;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(64, 196, 249, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(64, 196, 249, 0.45);
Border & gradient
Gradient panel
border: 3px solid #40c4f9; background: linear-gradient(135deg, #40c4f9, #4049F9);