#40ffdf
a balanced, electric cyan · cool · closest name: aquamarine
RGB
64, 255, 223
HSL
170°, 100%, 63%
CMYK
75, 0, 13, 0
Luminance
0.7794
Every format
| HEX | #40ffdf |
| RGB | rgb(64, 255, 223) |
| HSL | hsl(170, 100%, 63%) |
| CMYK | cmyk(75%, 0%, 13%, 0%) |
| LAB | lab(90.8 -53.3 2.0) |
| LCH | lch(90.8 53.4 177.9) |
| OKLCH | oklch(0.901 0.153 178.3) |
Copy-ready code
/* CSS */
color: #40ffdf;
background-color: #40ffdf;
/* Tailwind (arbitrary) */
class="text-[#40ffdf] bg-[#40ffdf]"
/* SCSS */
$brand: #40ffdf;
/* SwiftUI */
Color(red: 0.251, green: 1.000, blue: 0.875)
/* Android */
Color.parseColor("#40ffdf")Accessibility — WCAG contrast
Aa
#40ffdf on white: 1.27:1
AA ✗ fail · AA-large ✗ · AAA ✗
Aa
#40ffdf on black: 16.59:1
AA ✓ pass · AA-large ✓ · AAA ✓
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red25.1%
Green100.0%
Blue87.5%
CMYK percentages
Cyan74.9%
Magenta0.0%
Yellow12.5%
Key (black)0.0%
Color previews
#40ffdf text on a black background
contrast 16.59:1
Card sample
#40ffdf text on a white background
contrast 1.27:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #40ffdf;
Background color
Panel with #40ffdf background
background-color: #40ffdf;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #40ffdf;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(64, 255, 223, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(64, 255, 223, 0.45);
Border & gradient
Gradient panel
border: 3px solid #40ffdf; background: linear-gradient(135deg, #40ffdf, #40A0FF);