#efcb21
a balanced, electric yellow · cool · closest name: gold
RGB
239, 203, 33
HSL
50°, 87%, 53%
CMYK
0, 15, 86, 6
Luminance
0.6117
Every format
| HEX | #efcb21 |
| RGB | rgb(239, 203, 33) |
| HSL | hsl(50, 87%, 53%) |
| CMYK | cmyk(0%, 15%, 86%, 6%) |
| LAB | lab(82.5 -2.2 78.8) |
| LCH | lch(82.5 78.9 91.6) |
| OKLCH | oklch(0.848 0.168 95.5) |
Copy-ready code
/* CSS */
color: #efcb21;
background-color: #efcb21;
/* Tailwind (arbitrary) */
class="text-[#efcb21] bg-[#efcb21]"
/* SCSS */
$brand: #efcb21;
/* SwiftUI */
Color(red: 0.937, green: 0.796, blue: 0.129)
/* Android */
Color.parseColor("#efcb21")Accessibility — WCAG contrast
Aa
#efcb21 on white: 1.59:1
AA ✗ fail · AA-large ✗ · AAA ✗
Aa
#efcb21 on black: 13.23:1
AA ✓ pass · AA-large ✓ · AAA ✓
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red93.7%
Green79.6%
Blue12.9%
CMYK percentages
Cyan0.0%
Magenta15.1%
Yellow86.2%
Key (black)6.3%
Color previews
#efcb21 text on a black background
contrast 13.23:1
Card sample
#efcb21 text on a white background
contrast 1.59:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #efcb21;
Background color
Panel with #efcb21 background
background-color: #efcb21;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #efcb21;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(239, 203, 33, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(239, 203, 33, 0.45);
Border & gradient
Gradient panel
border: 3px solid #efcb21; background: linear-gradient(135deg, #efcb21, #8AEF21);