#40d4eb
a balanced, electric cyan · cool · closest name: skyblue
RGB
64, 212, 235
HSL
188°, 81%, 59%
CMYK
73, 10, 0, 8
Luminance
0.5418
Every format
| HEX | #40d4eb |
| RGB | rgb(64, 212, 235) |
| HSL | hsl(188, 81%, 59%) |
| CMYK | cmyk(73%, 10%, 0%, 8%) |
| LAB | lab(78.6 -30.9 -22.5) |
| LCH | lch(78.6 38.2 216.0) |
| OKLCH | oklch(0.803 0.124 210.2) |
Copy-ready code
/* CSS */
color: #40d4eb;
background-color: #40d4eb;
/* Tailwind (arbitrary) */
class="text-[#40d4eb] bg-[#40d4eb]"
/* SCSS */
$brand: #40d4eb;
/* SwiftUI */
Color(red: 0.251, green: 0.831, blue: 0.922)
/* Android */
Color.parseColor("#40d4eb")Accessibility — WCAG contrast
Aa
#40d4eb on white: 1.77:1
AA ✗ fail · AA-large ✗ · AAA ✗
Aa
#40d4eb on black: 11.84:1
AA ✓ pass · AA-large ✓ · AAA ✓
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red25.1%
Green83.1%
Blue92.2%
CMYK percentages
Cyan72.8%
Magenta9.8%
Yellow0.0%
Key (black)7.8%
Color previews
#40d4eb text on a black background
contrast 11.84:1
Card sample
#40d4eb text on a white background
contrast 1.77:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #40d4eb;
Background color
Panel with #40d4eb background
background-color: #40d4eb;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #40d4eb;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(64, 212, 235, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(64, 212, 235, 0.45);
Border & gradient
Gradient panel
border: 3px solid #40d4eb; background: linear-gradient(135deg, #40d4eb, #4062EB);