#ceef21
a balanced, electric yellow · cool · closest name: yellow
RGB
206, 239, 33
HSL
70°, 87%, 53%
CMYK
14, 0, 86, 6
Luminance
0.7496
Every format
| HEX | #ceef21 |
| RGB | rgb(206, 239, 33) |
| HSL | hsl(70, 87%, 53%) |
| CMYK | cmyk(14%, 0%, 86%, 6%) |
| LAB | lab(89.4 -33.6 83.4) |
| LCH | lch(89.4 89.9 111.9) |
| OKLCH | oklch(0.897 0.206 119.5) |
Copy-ready code
/* CSS */
color: #ceef21;
background-color: #ceef21;
/* Tailwind (arbitrary) */
class="text-[#ceef21] bg-[#ceef21]"
/* SCSS */
$brand: #ceef21;
/* SwiftUI */
Color(red: 0.808, green: 0.937, blue: 0.129)
/* Android */
Color.parseColor("#ceef21")Accessibility — WCAG contrast
Aa
#ceef21 on white: 1.31:1
AA ✗ fail · AA-large ✗ · AAA ✗
Aa
#ceef21 on black: 15.99:1
AA ✓ pass · AA-large ✓ · AAA ✓
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red80.8%
Green93.7%
Blue12.9%
CMYK percentages
Cyan13.8%
Magenta0.0%
Yellow86.2%
Key (black)6.3%
Color previews
#ceef21 text on a black background
contrast 15.99:1
Card sample
#ceef21 text on a white background
contrast 1.31:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #ceef21;
Background color
Panel with #ceef21 background
background-color: #ceef21;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #ceef21;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(206, 239, 33, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(206, 239, 33, 0.45);
Border & gradient
Gradient panel
border: 3px solid #ceef21; background: linear-gradient(135deg, #ceef21, #45EF21);