#40ddf5
a balanced, electric cyan · cool · closest name: skyblue
RGB
64, 221, 245
HSL
188°, 90%, 61%
CMYK
74, 10, 0, 4
Luminance
0.5940
Every format
| HEX | #40ddf5 |
| RGB | rgb(64, 221, 245) |
| HSL | hsl(188, 90%, 61%) |
| CMYK | cmyk(74%, 10%, 0%, 4%) |
| LAB | lab(81.5 -32.2 -23.3) |
| LCH | lch(81.5 39.8 215.9) |
| OKLCH | oklch(0.828 0.129 210.1) |
Copy-ready code
/* CSS */
color: #40ddf5;
background-color: #40ddf5;
/* Tailwind (arbitrary) */
class="text-[#40ddf5] bg-[#40ddf5]"
/* SCSS */
$brand: #40ddf5;
/* SwiftUI */
Color(red: 0.251, green: 0.867, blue: 0.961)
/* Android */
Color.parseColor("#40ddf5")Accessibility — WCAG contrast
Aa
#40ddf5 on white: 1.63:1
AA ✗ fail · AA-large ✗ · AAA ✗
Aa
#40ddf5 on black: 12.88:1
AA ✓ pass · AA-large ✓ · AAA ✓
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red25.1%
Green86.7%
Blue96.1%
CMYK percentages
Cyan73.9%
Magenta9.8%
Yellow0.0%
Key (black)3.9%
Color previews
#40ddf5 text on a black background
contrast 12.88:1
Card sample
#40ddf5 text on a white background
contrast 1.63:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #40ddf5;
Background color
Panel with #40ddf5 background
background-color: #40ddf5;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #40ddf5;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(64, 221, 245, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(64, 221, 245, 0.45);
Border & gradient
Gradient panel
border: 3px solid #40ddf5; background: linear-gradient(135deg, #40ddf5, #4064F5);