#40b5eb
a balanced, electric cyan · cool · closest name: skyblue
RGB
64, 181, 235
HSL
199°, 81%, 59%
CMYK
73, 23, 0, 8
Luminance
0.4014
Every format
| HEX | #40b5eb |
| RGB | rgb(64, 181, 235) |
| HSL | hsl(199, 81%, 59%) |
| CMYK | cmyk(73%, 23%, 0%, 8%) |
| LAB | lab(69.6 -15.2 -36.3) |
| LCH | lch(69.6 39.4 247.3) |
| OKLCH | oklch(0.731 0.128 232.7) |
Copy-ready code
/* CSS */
color: #40b5eb;
background-color: #40b5eb;
/* Tailwind (arbitrary) */
class="text-[#40b5eb] bg-[#40b5eb]"
/* SCSS */
$brand: #40b5eb;
/* SwiftUI */
Color(red: 0.251, green: 0.710, blue: 0.922)
/* Android */
Color.parseColor("#40b5eb")Accessibility — WCAG contrast
Aa
#40b5eb on white: 2.33:1
AA ✗ fail · AA-large ✗ · AAA ✗
Aa
#40b5eb on black: 9.03:1
AA ✓ pass · AA-large ✓ · AAA ✓
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red25.1%
Green71.0%
Blue92.2%
CMYK percentages
Cyan72.8%
Magenta23.0%
Yellow0.0%
Key (black)7.8%
Color previews
#40b5eb text on a black background
contrast 9.03:1
Card sample
#40b5eb text on a white background
contrast 2.33:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #40b5eb;
Background color
Panel with #40b5eb background
background-color: #40b5eb;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #40b5eb;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(64, 181, 235, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(64, 181, 235, 0.45);
Border & gradient
Gradient panel
border: 3px solid #40b5eb; background: linear-gradient(135deg, #40b5eb, #4043EB);