#fff308
a balanced, electric yellow · cool · closest name: yellow
RGB
255, 243, 8
HSL
57°, 100%, 52%
CMYK
0, 5, 97, 0
Luminance
0.8538
Every format
| HEX | #fff308 |
| RGB | rgb(255, 243, 8) |
| HSL | hsl(57, 100%, 52%) |
| CMYK | cmyk(0%, 5%, 97%, 0%) |
| LAB | lab(94.0 -15.7 91.6) |
| LCH | lch(94.0 93.0 99.7) |
| OKLCH | oklch(0.943 0.200 106.0) |
Copy-ready code
/* CSS */
color: #fff308;
background-color: #fff308;
/* Tailwind (arbitrary) */
class="text-[#fff308] bg-[#fff308]"
/* SCSS */
$brand: #fff308;
/* SwiftUI */
Color(red: 1.000, green: 0.953, blue: 0.031)
/* Android */
Color.parseColor("#fff308")Accessibility — WCAG contrast
Aa
#fff308 on white: 1.16:1
AA ✗ fail · AA-large ✗ · AAA ✗
Aa
#fff308 on black: 18.08:1
AA ✓ pass · AA-large ✓ · AAA ✓
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red100.0%
Green95.3%
Blue3.1%
CMYK percentages
Cyan0.0%
Magenta4.7%
Yellow96.9%
Key (black)0.0%
Color previews
#fff308 text on a black background
contrast 18.08:1
Card sample
#fff308 text on a white background
contrast 1.16:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #fff308;
Background color
Panel with #fff308 background
background-color: #fff308;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #fff308;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(255, 243, 8, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(255, 243, 8, 0.45);
Border & gradient
Gradient panel
border: 3px solid #fff308; background: linear-gradient(135deg, #fff308, #66FF08);