#efff13
a balanced, electric yellow · cool · closest name: yellow
RGB
239, 255, 19
HSL
64°, 100%, 54%
CMYK
6, 0, 93, 0
Luminance
0.8992
Every format
| HEX | #efff13 |
| RGB | rgb(239, 255, 19) |
| HSL | hsl(64, 100%, 54%) |
| CMYK | cmyk(6%, 0%, 93%, 0%) |
| LAB | lab(96.0 -27.9 91.6) |
| LCH | lch(96.0 95.8 106.9) |
| OKLCH | oklch(0.956 0.213 114.3) |
Copy-ready code
/* CSS */
color: #efff13;
background-color: #efff13;
/* Tailwind (arbitrary) */
class="text-[#efff13] bg-[#efff13]"
/* SCSS */
$brand: #efff13;
/* SwiftUI */
Color(red: 0.937, green: 1.000, blue: 0.075)
/* Android */
Color.parseColor("#efff13")Accessibility — WCAG contrast
Aa
#efff13 on white: 1.11:1
AA ✗ fail · AA-large ✗ · AAA ✗
Aa
#efff13 on black: 18.98:1
AA ✓ pass · AA-large ✓ · AAA ✓
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red93.7%
Green100.0%
Blue7.5%
CMYK percentages
Cyan6.3%
Magenta0.0%
Yellow92.5%
Key (black)0.0%
Color previews
#efff13 text on a black background
contrast 18.98:1
Card sample
#efff13 text on a white background
contrast 1.11:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #efff13;
Background color
Panel with #efff13 background
background-color: #efff13;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #efff13;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(239, 255, 19, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(239, 255, 19, 0.45);
Border & gradient
Gradient panel
border: 3px solid #efff13; background: linear-gradient(135deg, #efff13, #51FF13);