#efc521
a balanced, electric yellow · cool · closest name: gold
RGB
239, 197, 33
HSL
48°, 87%, 53%
CMYK
0, 18, 86, 6
Luminance
0.5839
Every format
| HEX | #efc521 |
| RGB | rgb(239, 197, 33) |
| HSL | hsl(48, 87%, 53%) |
| CMYK | cmyk(0%, 18%, 86%, 6%) |
| LAB | lab(81.0 0.8 77.6) |
| LCH | lch(81.0 77.6 89.4) |
| OKLCH | oklch(0.836 0.165 92.5) |
Copy-ready code
/* CSS */
color: #efc521;
background-color: #efc521;
/* Tailwind (arbitrary) */
class="text-[#efc521] bg-[#efc521]"
/* SCSS */
$brand: #efc521;
/* SwiftUI */
Color(red: 0.937, green: 0.773, blue: 0.129)
/* Android */
Color.parseColor("#efc521")Accessibility — WCAG contrast
Aa
#efc521 on white: 1.66:1
AA ✗ fail · AA-large ✗ · AAA ✗
Aa
#efc521 on black: 12.68:1
AA ✓ pass · AA-large ✓ · AAA ✓
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red93.7%
Green77.3%
Blue12.9%
CMYK percentages
Cyan0.0%
Magenta17.6%
Yellow86.2%
Key (black)6.3%
Color previews
#efc521 text on a black background
contrast 12.68:1
Card sample
#efc521 text on a white background
contrast 1.66:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #efc521;
Background color
Panel with #efc521 background
background-color: #efc521;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #efc521;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(239, 197, 33, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(239, 197, 33, 0.45);
Border & gradient
Gradient panel
border: 3px solid #efc521; background: linear-gradient(135deg, #efc521, #8FEF21);