#40f3fd
a balanced, electric cyan · cool · closest name: cyan
RGB
64, 243, 253
HSL
183°, 98%, 62%
CMYK
75, 4, 0, 1
Luminance
0.7228
Every format
| HEX | #40f3fd |
| RGB | rgb(64, 243, 253) |
| HSL | hsl(183, 98%, 62%) |
| CMYK | cmyk(75%, 4%, 0%, 1%) |
| LAB | lab(88.1 -40.1 -17.6) |
| LCH | lch(88.1 43.8 203.7) |
| OKLCH | oklch(0.882 0.138 200.7) |
Copy-ready code
/* CSS */
color: #40f3fd;
background-color: #40f3fd;
/* Tailwind (arbitrary) */
class="text-[#40f3fd] bg-[#40f3fd]"
/* SCSS */
$brand: #40f3fd;
/* SwiftUI */
Color(red: 0.251, green: 0.953, blue: 0.992)
/* Android */
Color.parseColor("#40f3fd")Accessibility — WCAG contrast
Aa
#40f3fd on white: 1.36:1
AA ✗ fail · AA-large ✗ · AAA ✗
Aa
#40f3fd on black: 15.46:1
AA ✓ pass · AA-large ✓ · AAA ✓
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red25.1%
Green95.3%
Blue99.2%
CMYK percentages
Cyan74.7%
Magenta4.0%
Yellow0.0%
Key (black)0.8%
Color previews
#40f3fd text on a black background
contrast 15.46:1
Card sample
#40f3fd text on a white background
contrast 1.36:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #40f3fd;
Background color
Panel with #40f3fd background
background-color: #40f3fd;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #40f3fd;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(64, 243, 253, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(64, 243, 253, 0.45);
Border & gradient
Gradient panel
border: 3px solid #40f3fd; background: linear-gradient(135deg, #40f3fd, #4075FD);