#40ace0
a balanced, vivid cyan · cool · closest name: steelblue
RGB
64, 172, 224
HSL
200°, 72%, 57%
CMYK
71, 23, 0, 12
Luminance
0.3598
Every format
| HEX | #40ace0 |
| RGB | rgb(64, 172, 224) |
| HSL | hsl(200, 72%, 57%) |
| CMYK | cmyk(71%, 23%, 0%, 12%) |
| LAB | lab(66.5 -14.0 -35.1) |
| LCH | lch(66.5 37.7 248.3) |
| OKLCH | oklch(0.705 0.123 233.5) |
Copy-ready code
/* CSS */
color: #40ace0;
background-color: #40ace0;
/* Tailwind (arbitrary) */
class="text-[#40ace0] bg-[#40ace0]"
/* SCSS */
$brand: #40ace0;
/* SwiftUI */
Color(red: 0.251, green: 0.675, blue: 0.878)
/* Android */
Color.parseColor("#40ace0")Accessibility — WCAG contrast
Aa
#40ace0 on white: 2.56:1
AA ✗ fail · AA-large ✗ · AAA ✗
Aa
#40ace0 on black: 8.20:1
AA ✓ pass · AA-large ✓ · AAA ✓
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red25.1%
Green67.5%
Blue87.8%
CMYK percentages
Cyan71.4%
Magenta23.2%
Yellow0.0%
Key (black)12.2%
Color previews
#40ace0 text on a black background
contrast 8.20:1
Card sample
#40ace0 text on a white background
contrast 2.56:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #40ace0;
Background color
Panel with #40ace0 background
background-color: #40ace0;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #40ace0;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(64, 172, 224, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(64, 172, 224, 0.45);
Border & gradient
Gradient panel
border: 3px solid #40ace0; background: linear-gradient(135deg, #40ace0, #4041E0);