#ffff11
a balanced, electric yellow · cool · “yellow”
RGB
255, 255, 17
HSL
60°, 100%, 53%
CMYK
0, 0, 93, 0
Luminance
0.9282
Every format
| HEX | #ffff11 |
| RGB | rgb(255, 255, 17) |
| HSL | hsl(60, 100%, 53%) |
| CMYK | cmyk(0%, 0%, 93%, 0%) |
| LAB | lab(97.2 -21.4 93.2) |
| LCH | lch(97.2 95.7 102.9) |
| OKLCH | oklch(0.968 0.209 109.7) |
Copy-ready code
/* CSS */
color: #ffff11;
background-color: #ffff11;
/* Tailwind (arbitrary) */
class="text-[#ffff11] bg-[#ffff11]"
/* SCSS */
$brand: #ffff11;
/* SwiftUI */
Color(red: 1.000, green: 1.000, blue: 0.067)
/* Android */
Color.parseColor("#ffff11")Accessibility — WCAG contrast
Aa
#ffff11 on white: 1.07:1
AA ✗ fail · AA-large ✗ · AAA ✗
Aa
#ffff11 on black: 19.56:1
AA ✓ pass · AA-large ✓ · AAA ✓
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red100.0%
Green100.0%
Blue6.7%
CMYK percentages
Cyan0.0%
Magenta0.0%
Yellow93.3%
Key (black)0.0%
Color previews
#ffff11 text on a black background
contrast 19.56:1
Card sample
#ffff11 text on a white background
contrast 1.07:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #ffff11;
Background color
Panel with #ffff11 background
background-color: #ffff11;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #ffff11;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(255, 255, 17, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(255, 255, 17, 0.45);
Border & gradient
Gradient panel
border: 3px solid #ffff11; background: linear-gradient(135deg, #ffff11, #60FF11);