#ecf939
a balanced, electric yellow · cool · closest name: yellow
RGB
236, 249, 57
HSL
64°, 94%, 60%
CMYK
5, 0, 77, 2
Luminance
0.8588
Every format
| HEX | #ecf939 |
| RGB | rgb(236, 249, 57) |
| HSL | hsl(64, 94%, 60%) |
| CMYK | cmyk(5%, 0%, 77%, 2%) |
| LAB | lab(94.3 -25.4 82.8) |
| LCH | lch(94.3 86.7 107.1) |
| OKLCH | oklch(0.942 0.197 113.6) |
Copy-ready code
/* CSS */
color: #ecf939;
background-color: #ecf939;
/* Tailwind (arbitrary) */
class="text-[#ecf939] bg-[#ecf939]"
/* SCSS */
$brand: #ecf939;
/* SwiftUI */
Color(red: 0.925, green: 0.976, blue: 0.224)
/* Android */
Color.parseColor("#ecf939")Accessibility — WCAG contrast
Aa
#ecf939 on white: 1.16:1
AA ✗ fail · AA-large ✗ · AAA ✗
Aa
#ecf939 on black: 18.18:1
AA ✓ pass · AA-large ✓ · AAA ✓
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red92.5%
Green97.6%
Blue22.4%
CMYK percentages
Cyan5.2%
Magenta0.0%
Yellow77.1%
Key (black)2.4%
Color previews
#ecf939 text on a black background
contrast 18.18:1
Card sample
#ecf939 text on a white background
contrast 1.16:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #ecf939;
Background color
Panel with #ecf939 background
background-color: #ecf939;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #ecf939;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(236, 249, 57, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(236, 249, 57, 0.45);
Border & gradient
Gradient panel
border: 3px solid #ecf939; background: linear-gradient(135deg, #ecf939, #6CF939);