#b1fd21
a balanced, electric green · cool · closest name: yellow
RGB
177, 253, 33
HSL
81°, 98%, 56%
CMYK
30, 0, 87, 1
Luminance
0.7971
Every format
| HEX | #b1fd21 |
| RGB | rgb(177, 253, 33) |
| HSL | hsl(81, 98%, 56%) |
| CMYK | cmyk(30%, 0%, 87%, 1%) |
| LAB | lab(91.5 -50.7 84.5) |
| LCH | lch(91.5 98.5 121.0) |
| OKLCH | oklch(0.910 0.234 128.7) |
Copy-ready code
/* CSS */
color: #b1fd21;
background-color: #b1fd21;
/* Tailwind (arbitrary) */
class="text-[#b1fd21] bg-[#b1fd21]"
/* SCSS */
$brand: #b1fd21;
/* SwiftUI */
Color(red: 0.694, green: 0.992, blue: 0.129)
/* Android */
Color.parseColor("#b1fd21")Accessibility — WCAG contrast
Aa
#b1fd21 on white: 1.24:1
AA ✗ fail · AA-large ✗ · AAA ✗
Aa
#b1fd21 on black: 16.94:1
AA ✓ pass · AA-large ✓ · AAA ✓
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red69.4%
Green99.2%
Blue12.9%
CMYK percentages
Cyan30.0%
Magenta0.0%
Yellow87.0%
Key (black)0.8%
Color previews
#b1fd21 text on a black background
contrast 16.94:1
Card sample
#b1fd21 text on a white background
contrast 1.24:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #b1fd21;
Background color
Panel with #b1fd21 background
background-color: #b1fd21;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #b1fd21;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(177, 253, 33, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(177, 253, 33, 0.45);
Border & gradient
Gradient panel
border: 3px solid #b1fd21; background: linear-gradient(135deg, #b1fd21, #21FD24);