#40f9da
a balanced, electric cyan · cool · closest name: aquamarine
RGB
64, 249, 218
HSL
170°, 94%, 61%
CMYK
74, 0, 12, 2
Luminance
0.7390
Every format
| HEX | #40f9da |
| RGB | rgb(64, 249, 218) |
| HSL | hsl(170, 94%, 61%) |
| CMYK | cmyk(74%, 0%, 12%, 2%) |
| LAB | lab(88.9 -52.1 1.9) |
| LCH | lch(88.9 52.1 178.0) |
| OKLCH | oklch(0.885 0.150 178.4) |
Copy-ready code
/* CSS */
color: #40f9da;
background-color: #40f9da;
/* Tailwind (arbitrary) */
class="text-[#40f9da] bg-[#40f9da]"
/* SCSS */
$brand: #40f9da;
/* SwiftUI */
Color(red: 0.251, green: 0.976, blue: 0.855)
/* Android */
Color.parseColor("#40f9da")Accessibility — WCAG contrast
Aa
#40f9da on white: 1.33:1
AA ✗ fail · AA-large ✗ · AAA ✗
Aa
#40f9da on black: 15.78:1
AA ✓ pass · AA-large ✓ · AAA ✓
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red25.1%
Green97.6%
Blue85.5%
CMYK percentages
Cyan74.3%
Magenta0.0%
Yellow12.4%
Key (black)2.4%
Color previews
#40f9da text on a black background
contrast 15.78:1
Card sample
#40f9da text on a white background
contrast 1.33:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #40f9da;
Background color
Panel with #40f9da background
background-color: #40f9da;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #40f9da;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(64, 249, 218, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(64, 249, 218, 0.45);
Border & gradient
Gradient panel
border: 3px solid #40f9da; background: linear-gradient(135deg, #40f9da, #409DF9);