#f3ff0a
a balanced, electric yellow · cool · closest name: yellow
RGB
243, 255, 10
HSL
63°, 100%, 52%
CMYK
5, 0, 96, 0
Luminance
0.9060
Every format
| HEX | #f3ff0a |
| RGB | rgb(243, 255, 10) |
| HSL | hsl(63, 100%, 52%) |
| CMYK | cmyk(5%, 0%, 96%, 0%) |
| LAB | lab(96.2 -26.4 92.7) |
| LCH | lch(96.2 96.4 105.9) |
| OKLCH | oklch(0.959 0.213 113.2) |
Copy-ready code
/* CSS */
color: #f3ff0a;
background-color: #f3ff0a;
/* Tailwind (arbitrary) */
class="text-[#f3ff0a] bg-[#f3ff0a]"
/* SCSS */
$brand: #f3ff0a;
/* SwiftUI */
Color(red: 0.953, green: 1.000, blue: 0.039)
/* Android */
Color.parseColor("#f3ff0a")Accessibility — WCAG contrast
Aa
#f3ff0a on white: 1.10:1
AA ✗ fail · AA-large ✗ · AAA ✗
Aa
#f3ff0a on black: 19.12:1
AA ✓ pass · AA-large ✓ · AAA ✓
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red95.3%
Green100.0%
Blue3.9%
CMYK percentages
Cyan4.7%
Magenta0.0%
Yellow96.1%
Key (black)0.0%
Color previews
#f3ff0a text on a black background
contrast 19.12:1
Card sample
#f3ff0a text on a white background
contrast 1.10:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #f3ff0a;
Background color
Panel with #f3ff0a background
background-color: #f3ff0a;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #f3ff0a;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(243, 255, 10, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(243, 255, 10, 0.45);
Border & gradient
Gradient panel
border: 3px solid #f3ff0a; background: linear-gradient(135deg, #f3ff0a, #50FF0A);