#cef821
a balanced, electric green · cool · closest name: yellow
RGB
206, 248, 33
HSL
72°, 94%, 55%
CMYK
17, 0, 87, 3
Luminance
0.8037
Every format
| HEX | #cef821 |
| RGB | rgb(206, 248, 33) |
| HSL | hsl(72, 94%, 55%) |
| CMYK | cmyk(17%, 0%, 87%, 3%) |
| LAB | lab(91.8 -37.6 85.4) |
| LCH | lch(91.8 93.3 113.8) |
| OKLCH | oklch(0.917 0.215 121.5) |
Copy-ready code
/* CSS */
color: #cef821;
background-color: #cef821;
/* Tailwind (arbitrary) */
class="text-[#cef821] bg-[#cef821]"
/* SCSS */
$brand: #cef821;
/* SwiftUI */
Color(red: 0.808, green: 0.973, blue: 0.129)
/* Android */
Color.parseColor("#cef821")Accessibility — WCAG contrast
Aa
#cef821 on white: 1.23:1
AA ✗ fail · AA-large ✗ · AAA ✗
Aa
#cef821 on black: 17.07:1
AA ✓ pass · AA-large ✓ · AAA ✓
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red80.8%
Green97.3%
Blue12.9%
CMYK percentages
Cyan16.9%
Magenta0.0%
Yellow86.7%
Key (black)2.7%
Color previews
#cef821 text on a black background
contrast 17.07:1
Card sample
#cef821 text on a white background
contrast 1.23:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #cef821;
Background color
Panel with #cef821 background
background-color: #cef821;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #cef821;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(206, 248, 33, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(206, 248, 33, 0.45);
Border & gradient
Gradient panel
border: 3px solid #cef821; background: linear-gradient(135deg, #cef821, #3FF821);