#40c3f4
a balanced, electric cyan · cool · closest name: skyblue
RGB
64, 195, 244
HSL
196°, 89%, 60%
CMYK
74, 20, 0, 4
Luminance
0.4665
Every format
| HEX | #40c3f4 |
| RGB | rgb(64, 195, 244) |
| HSL | hsl(196, 89%, 60%) |
| CMYK | cmyk(74%, 20%, 0%, 4%) |
| LAB | lab(74.0 -19.6 -34.4) |
| LCH | lch(74.0 39.5 240.3) |
| OKLCH | oklch(0.767 0.131 227.7) |
Copy-ready code
/* CSS */
color: #40c3f4;
background-color: #40c3f4;
/* Tailwind (arbitrary) */
class="text-[#40c3f4] bg-[#40c3f4]"
/* SCSS */
$brand: #40c3f4;
/* SwiftUI */
Color(red: 0.251, green: 0.765, blue: 0.957)
/* Android */
Color.parseColor("#40c3f4")Accessibility — WCAG contrast
Aa
#40c3f4 on white: 2.03:1
AA ✗ fail · AA-large ✗ · AAA ✗
Aa
#40c3f4 on black: 10.33:1
AA ✓ pass · AA-large ✓ · AAA ✓
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red25.1%
Green76.5%
Blue95.7%
CMYK percentages
Cyan73.8%
Magenta20.1%
Yellow0.0%
Key (black)4.3%
Color previews
#40c3f4 text on a black background
contrast 10.33:1
Card sample
#40c3f4 text on a white background
contrast 2.03:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #40c3f4;
Background color
Panel with #40c3f4 background
background-color: #40c3f4;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #40c3f4;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(64, 195, 244, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(64, 195, 244, 0.45);
Border & gradient
Gradient panel
border: 3px solid #40c3f4; background: linear-gradient(135deg, #40c3f4, #404BF4);