#f3ff66
a light, electric yellow · cool · closest name: yellow
RGB
243, 255, 102
HSL
65°, 100%, 70%
CMYK
5, 0, 60, 0
Luminance
0.9153
Every format
| HEX | #f3ff66 |
| RGB | rgb(243, 255, 102) |
| HSL | hsl(65, 100%, 70%) |
| CMYK | cmyk(5%, 0%, 60%, 0%) |
| LAB | lab(96.6 -23.2 69.7) |
| LCH | lch(96.6 73.4 108.4) |
| OKLCH | oklch(0.963 0.174 113.4) |
Copy-ready code
/* CSS */
color: #f3ff66;
background-color: #f3ff66;
/* Tailwind (arbitrary) */
class="text-[#f3ff66] bg-[#f3ff66]"
/* SCSS */
$brand: #f3ff66;
/* SwiftUI */
Color(red: 0.953, green: 1.000, blue: 0.400)
/* Android */
Color.parseColor("#f3ff66")Accessibility — WCAG contrast
Aa
#f3ff66 on white: 1.09:1
AA ✗ fail · AA-large ✗ · AAA ✗
Aa
#f3ff66 on black: 19.31:1
AA ✓ pass · AA-large ✓ · AAA ✓
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red95.3%
Green100.0%
Blue40.0%
CMYK percentages
Cyan4.7%
Magenta0.0%
Yellow60.0%
Key (black)0.0%
Color previews
#f3ff66 text on a black background
contrast 19.31:1
Card sample
#f3ff66 text on a white background
contrast 1.09:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #f3ff66;
Background color
Panel with #f3ff66 background
background-color: #f3ff66;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #f3ff66;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(243, 255, 102, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(243, 255, 102, 0.45);
Border & gradient
Gradient panel
border: 3px solid #f3ff66; background: linear-gradient(135deg, #f3ff66, #8DFF66);