#40ef21
a balanced, electric green · cool · closest name: lime
RGB
64, 239, 33
HSL
111°, 87%, 53%
CMYK
73, 0, 86, 6
Luminance
0.6293
Every format
| HEX | #40ef21 |
| RGB | rgb(64, 239, 33) |
| HSL | hsl(111, 87%, 53%) |
| CMYK | cmyk(73%, 0%, 86%, 6%) |
| LAB | lab(83.4 -76.2 76.0) |
| LCH | lch(83.4 107.5 135.1) |
| OKLCH | oklch(0.832 0.266 141.4) |
Copy-ready code
/* CSS */
color: #40ef21;
background-color: #40ef21;
/* Tailwind (arbitrary) */
class="text-[#40ef21] bg-[#40ef21]"
/* SCSS */
$brand: #40ef21;
/* SwiftUI */
Color(red: 0.251, green: 0.937, blue: 0.129)
/* Android */
Color.parseColor("#40ef21")Accessibility — WCAG contrast
Aa
#40ef21 on white: 1.55:1
AA ✗ fail · AA-large ✗ · AAA ✗
Aa
#40ef21 on black: 13.59:1
AA ✓ pass · AA-large ✓ · AAA ✓
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red25.1%
Green93.7%
Blue12.9%
CMYK percentages
Cyan73.2%
Magenta0.0%
Yellow86.2%
Key (black)6.3%
Color previews
#40ef21 text on a black background
contrast 13.59:1
Card sample
#40ef21 text on a white background
contrast 1.55:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #40ef21;
Background color
Panel with #40ef21 background
background-color: #40ef21;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #40ef21;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(64, 239, 33, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(64, 239, 33, 0.45);
Border & gradient
Gradient panel
border: 3px solid #40ef21; background: linear-gradient(135deg, #40ef21, #21EF8B);