#fff921
a balanced, electric yellow · cool · closest name: yellow
RGB
255, 249, 33
HSL
58°, 100%, 57%
CMYK
0, 2, 87, 0
Luminance
0.8912
Every format
| HEX | #fff921 |
| RGB | rgb(255, 249, 33) |
| HSL | hsl(58, 100%, 57%) |
| CMYK | cmyk(0%, 2%, 87%, 0%) |
| LAB | lab(95.6 -18.3 89.9) |
| LCH | lch(95.6 91.8 101.5) |
| OKLCH | oklch(0.956 0.201 107.8) |
Copy-ready code
/* CSS */
color: #fff921;
background-color: #fff921;
/* Tailwind (arbitrary) */
class="text-[#fff921] bg-[#fff921]"
/* SCSS */
$brand: #fff921;
/* SwiftUI */
Color(red: 1.000, green: 0.976, blue: 0.129)
/* Android */
Color.parseColor("#fff921")Accessibility — WCAG contrast
Aa
#fff921 on white: 1.12:1
AA ✗ fail · AA-large ✗ · AAA ✗
Aa
#fff921 on black: 18.82:1
AA ✓ pass · AA-large ✓ · AAA ✓
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red100.0%
Green97.6%
Blue12.9%
CMYK percentages
Cyan0.0%
Magenta2.4%
Yellow87.1%
Key (black)0.0%
Color previews
#fff921 text on a black background
contrast 18.82:1
Card sample
#fff921 text on a white background
contrast 1.12:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #fff921;
Background color
Panel with #fff921 background
background-color: #fff921;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #fff921;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(255, 249, 33, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(255, 249, 33, 0.45);
Border & gradient
Gradient panel
border: 3px solid #fff921; background: linear-gradient(135deg, #fff921, #71FF21);