#cfef21
a balanced, electric yellow · cool · closest name: yellow
RGB
207, 239, 33
HSL
69°, 87%, 53%
CMYK
13, 0, 86, 6
Luminance
0.7511
Every format
| HEX | #cfef21 |
| RGB | rgb(207, 239, 33) |
| HSL | hsl(69, 87%, 53%) |
| CMYK | cmyk(13%, 0%, 86%, 6%) |
| LAB | lab(89.4 -33.2 83.5) |
| LCH | lch(89.4 89.8 111.7) |
| OKLCH | oklch(0.898 0.205 119.2) |
Copy-ready code
/* CSS */
color: #cfef21;
background-color: #cfef21;
/* Tailwind (arbitrary) */
class="text-[#cfef21] bg-[#cfef21]"
/* SCSS */
$brand: #cfef21;
/* SwiftUI */
Color(red: 0.812, green: 0.937, blue: 0.129)
/* Android */
Color.parseColor("#cfef21")Accessibility — WCAG contrast
Aa
#cfef21 on white: 1.31:1
AA ✗ fail · AA-large ✗ · AAA ✗
Aa
#cfef21 on black: 16.02:1
AA ✓ pass · AA-large ✓ · AAA ✓
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red81.2%
Green93.7%
Blue12.9%
CMYK percentages
Cyan13.4%
Magenta0.0%
Yellow86.2%
Key (black)6.3%
Color previews
#cfef21 text on a black background
contrast 16.02:1
Card sample
#cfef21 text on a white background
contrast 1.31:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #cfef21;
Background color
Panel with #cfef21 background
background-color: #cfef21;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #cfef21;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(207, 239, 33, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(207, 239, 33, 0.45);
Border & gradient
Gradient panel
border: 3px solid #cfef21; background: linear-gradient(135deg, #cfef21, #46EF21);