#efc821
a balanced, electric yellow · cool · closest name: gold
RGB
239, 200, 33
HSL
49°, 87%, 53%
CMYK
0, 16, 86, 6
Luminance
0.5977
Every format
| HEX | #efc821 |
| RGB | rgb(239, 200, 33) |
| HSL | hsl(49, 87%, 53%) |
| CMYK | cmyk(0%, 16%, 86%, 6%) |
| LAB | lab(81.7 -0.7 78.2) |
| LCH | lch(81.7 78.2 90.5) |
| OKLCH | oklch(0.842 0.167 94.0) |
Copy-ready code
/* CSS */
color: #efc821;
background-color: #efc821;
/* Tailwind (arbitrary) */
class="text-[#efc821] bg-[#efc821]"
/* SCSS */
$brand: #efc821;
/* SwiftUI */
Color(red: 0.937, green: 0.784, blue: 0.129)
/* Android */
Color.parseColor("#efc821")Accessibility — WCAG contrast
Aa
#efc821 on white: 1.62:1
AA ✗ fail · AA-large ✗ · AAA ✗
Aa
#efc821 on black: 12.95:1
AA ✓ pass · AA-large ✓ · AAA ✓
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red93.7%
Green78.4%
Blue12.9%
CMYK percentages
Cyan0.0%
Magenta16.3%
Yellow86.2%
Key (black)6.3%
Color previews
#efc821 text on a black background
contrast 12.95:1
Card sample
#efc821 text on a white background
contrast 1.62:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #efc821;
Background color
Panel with #efc821 background
background-color: #efc821;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #efc821;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(239, 200, 33, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(239, 200, 33, 0.45);
Border & gradient
Gradient panel
border: 3px solid #efc821; background: linear-gradient(135deg, #efc821, #8DEF21);