#40f9fd
a balanced, electric cyan · cool · closest name: cyan
RGB
64, 249, 253
HSL
181°, 98%, 62%
CMYK
75, 2, 0, 1
Luminance
0.7593
Every format
| HEX | #40f9fd |
| RGB | rgb(64, 249, 253) |
| HSL | hsl(181, 98%, 62%) |
| CMYK | cmyk(75%, 2%, 0%, 1%) |
| LAB | lab(89.8 -42.8 -15.0) |
| LCH | lch(89.8 45.3 199.3) |
| OKLCH | oklch(0.896 0.141 197.2) |
Copy-ready code
/* CSS */
color: #40f9fd;
background-color: #40f9fd;
/* Tailwind (arbitrary) */
class="text-[#40f9fd] bg-[#40f9fd]"
/* SCSS */
$brand: #40f9fd;
/* SwiftUI */
Color(red: 0.251, green: 0.976, blue: 0.992)
/* Android */
Color.parseColor("#40f9fd")Accessibility — WCAG contrast
Aa
#40f9fd on white: 1.30:1
AA ✗ fail · AA-large ✗ · AAA ✗
Aa
#40f9fd on black: 16.19:1
AA ✓ pass · AA-large ✓ · AAA ✓
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red25.1%
Green97.6%
Blue99.2%
CMYK percentages
Cyan74.7%
Magenta1.6%
Yellow0.0%
Key (black)0.8%
Color previews
#40f9fd text on a black background
contrast 16.19:1
Card sample
#40f9fd text on a white background
contrast 1.30:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #40f9fd;
Background color
Panel with #40f9fd background
background-color: #40f9fd;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #40f9fd;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(64, 249, 253, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(64, 249, 253, 0.45);
Border & gradient
Gradient panel
border: 3px solid #40f9fd; background: linear-gradient(135deg, #40f9fd, #407BFD);