#40ddf6
a balanced, electric cyan · cool · closest name: skyblue
RGB
64, 221, 246
HSL
188°, 91%, 61%
CMYK
74, 10, 0, 4
Luminance
0.5946
Every format
| HEX | #40ddf6 |
| RGB | rgb(64, 221, 246) |
| HSL | hsl(188, 91%, 61%) |
| CMYK | cmyk(74%, 10%, 0%, 4%) |
| LAB | lab(81.5 -31.9 -23.8) |
| LCH | lch(81.5 39.8 216.7) |
| OKLCH | oklch(0.828 0.130 210.7) |
Copy-ready code
/* CSS */
color: #40ddf6;
background-color: #40ddf6;
/* Tailwind (arbitrary) */
class="text-[#40ddf6] bg-[#40ddf6]"
/* SCSS */
$brand: #40ddf6;
/* SwiftUI */
Color(red: 0.251, green: 0.867, blue: 0.965)
/* Android */
Color.parseColor("#40ddf6")Accessibility — WCAG contrast
Aa
#40ddf6 on white: 1.63:1
AA ✗ fail · AA-large ✗ · AAA ✗
Aa
#40ddf6 on black: 12.89:1
AA ✓ pass · AA-large ✓ · AAA ✓
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red25.1%
Green86.7%
Blue96.5%
CMYK percentages
Cyan74.0%
Magenta10.2%
Yellow0.0%
Key (black)3.5%
Color previews
#40ddf6 text on a black background
contrast 12.89:1
Card sample
#40ddf6 text on a white background
contrast 1.63:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #40ddf6;
Background color
Panel with #40ddf6 background
background-color: #40ddf6;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #40ddf6;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(64, 221, 246, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(64, 221, 246, 0.45);
Border & gradient
Gradient panel
border: 3px solid #40ddf6; background: linear-gradient(135deg, #40ddf6, #4064F6);