#40df89
a balanced, vivid green · cool · closest name: aquamarine
RGB
64, 223, 137
HSL
148°, 71%, 56%
CMYK
71, 0, 39, 13
Luminance
0.5567
Every format
| HEX | #40df89 |
| RGB | rgb(64, 223, 137) |
| HSL | hsl(148, 71%, 56%) |
| CMYK | cmyk(71%, 0%, 39%, 13%) |
| LAB | lab(79.4 -59.8 30.6) |
| LCH | lch(79.4 67.2 152.9) |
| OKLCH | oklch(0.802 0.179 154.7) |
Copy-ready code
/* CSS */
color: #40df89;
background-color: #40df89;
/* Tailwind (arbitrary) */
class="text-[#40df89] bg-[#40df89]"
/* SCSS */
$brand: #40df89;
/* SwiftUI */
Color(red: 0.251, green: 0.875, blue: 0.537)
/* Android */
Color.parseColor("#40df89")Accessibility — WCAG contrast
Aa
#40df89 on white: 1.73:1
AA ✗ fail · AA-large ✗ · AAA ✗
Aa
#40df89 on black: 12.13:1
AA ✓ pass · AA-large ✓ · AAA ✓
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red25.1%
Green87.5%
Blue53.7%
CMYK percentages
Cyan71.3%
Magenta0.0%
Yellow38.6%
Key (black)12.5%
Color previews
#40df89 text on a black background
contrast 12.13:1
Card sample
#40df89 text on a white background
contrast 1.73:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #40df89;
Background color
Panel with #40df89 background
background-color: #40df89;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #40df89;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(64, 223, 137, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(64, 223, 137, 0.45);
Border & gradient
Gradient panel
border: 3px solid #40df89; background: linear-gradient(135deg, #40df89, #40CBDF);