#40ade0
a balanced, vivid cyan · cool · closest name: steelblue
RGB
64, 173, 224
HSL
199°, 72%, 57%
CMYK
71, 23, 0, 12
Luminance
0.3636
Every format
| HEX | #40ade0 |
| RGB | rgb(64, 173, 224) |
| HSL | hsl(199, 72%, 57%) |
| CMYK | cmyk(71%, 23%, 0%, 12%) |
| LAB | lab(66.8 -14.5 -34.6) |
| LCH | lch(66.8 37.5 247.2) |
| OKLCH | oklch(0.707 0.122 232.7) |
Copy-ready code
/* CSS */
color: #40ade0;
background-color: #40ade0;
/* Tailwind (arbitrary) */
class="text-[#40ade0] bg-[#40ade0]"
/* SCSS */
$brand: #40ade0;
/* SwiftUI */
Color(red: 0.251, green: 0.678, blue: 0.878)
/* Android */
Color.parseColor("#40ade0")Accessibility — WCAG contrast
Aa
#40ade0 on white: 2.54:1
AA ✗ fail · AA-large ✗ · AAA ✗
Aa
#40ade0 on black: 8.27:1
AA ✓ pass · AA-large ✓ · AAA ✓
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red25.1%
Green67.8%
Blue87.8%
CMYK percentages
Cyan71.4%
Magenta22.8%
Yellow0.0%
Key (black)12.2%
Color previews
#40ade0 text on a black background
contrast 8.27:1
Card sample
#40ade0 text on a white background
contrast 2.54:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #40ade0;
Background color
Panel with #40ade0 background
background-color: #40ade0;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #40ade0;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(64, 173, 224, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(64, 173, 224, 0.45);
Border & gradient
Gradient panel
border: 3px solid #40ade0; background: linear-gradient(135deg, #40ade0, #4042E0);