#1fff21
a balanced, electric green · cool · closest name: lime
RGB
31, 255, 33
HSL
121°, 100%, 56%
CMYK
88, 0, 87, 0
Luminance
0.7192
Every format
| HEX | #1fff21 |
| RGB | rgb(31, 255, 33) |
| HSL | hsl(121, 100%, 56%) |
| CMYK | cmyk(88%, 0%, 87%, 0%) |
| LAB | lab(87.9 -84.2 79.7) |
| LCH | lch(87.9 116.0 136.6) |
| OKLCH | oklch(0.869 0.287 142.6) |
Copy-ready code
/* CSS */
color: #1fff21;
background-color: #1fff21;
/* Tailwind (arbitrary) */
class="text-[#1fff21] bg-[#1fff21]"
/* SCSS */
$brand: #1fff21;
/* SwiftUI */
Color(red: 0.122, green: 1.000, blue: 0.129)
/* Android */
Color.parseColor("#1fff21")Accessibility — WCAG contrast
Aa
#1fff21 on white: 1.37:1
AA ✗ fail · AA-large ✗ · AAA ✗
Aa
#1fff21 on black: 15.38:1
AA ✓ pass · AA-large ✓ · AAA ✓
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red12.2%
Green100.0%
Blue12.9%
CMYK percentages
Cyan87.8%
Magenta0.0%
Yellow87.1%
Key (black)0.0%
Color previews
#1fff21 text on a black background
contrast 15.38:1
Card sample
#1fff21 text on a white background
contrast 1.37:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #1fff21;
Background color
Panel with #1fff21 background
background-color: #1fff21;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #1fff21;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(31, 255, 33, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(31, 255, 33, 0.45);
Border & gradient
Gradient panel
border: 3px solid #1fff21; background: linear-gradient(135deg, #1fff21, #1FFFB6);