#21d310
a dark, electric green · cool · closest name: lime
RGB
33, 211, 16
HSL
115°, 86%, 45%
CMYK
84, 0, 92, 17
Luminance
0.4695
Every format
| HEX | #21d310 |
| RGB | rgb(33, 211, 16) |
| HSL | hsl(115, 86%, 45%) |
| CMYK | cmyk(84%, 0%, 92%, 17%) |
| LAB | lab(74.2 -72.5 70.7) |
| LCH | lch(74.2 101.3 135.7) |
| OKLCH | oklch(0.754 0.250 142.1) |
Copy-ready code
/* CSS */
color: #21d310;
background-color: #21d310;
/* Tailwind (arbitrary) */
class="text-[#21d310] bg-[#21d310]"
/* SCSS */
$brand: #21d310;
/* SwiftUI */
Color(red: 0.129, green: 0.827, blue: 0.063)
/* Android */
Color.parseColor("#21d310")Accessibility — WCAG contrast
Aa
#21d310 on white: 2.02:1
AA ✗ fail · AA-large ✗ · AAA ✗
Aa
#21d310 on black: 10.39:1
AA ✓ pass · AA-large ✓ · AAA ✓
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red12.9%
Green82.7%
Blue6.3%
CMYK percentages
Cyan84.4%
Magenta0.0%
Yellow92.4%
Key (black)17.3%
Color previews
#21d310 text on a black background
contrast 10.39:1
Card sample
#21d310 text on a white background
contrast 2.02:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #21d310;
Background color
Panel with #21d310 background
background-color: #21d310;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #21d310;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(33, 211, 16, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(33, 211, 16, 0.45);
Border & gradient
Gradient panel
border: 3px solid #21d310; background: linear-gradient(135deg, #21d310, #10D381);