#ecf621
a balanced, electric yellow · cool · closest name: yellow
RGB
236, 246, 33
HSL
63°, 92%, 55%
CMYK
4, 0, 87, 4
Luminance
0.8385
Every format
| HEX | #ecf621 |
| RGB | rgb(236, 246, 33) |
| HSL | hsl(63, 92%, 55%) |
| CMYK | cmyk(4%, 0%, 87%, 4%) |
| LAB | lab(93.4 -24.7 87.5) |
| LCH | lch(93.4 91.0 105.8) |
| OKLCH | oklch(0.935 0.203 112.7) |
Copy-ready code
/* CSS */
color: #ecf621;
background-color: #ecf621;
/* Tailwind (arbitrary) */
class="text-[#ecf621] bg-[#ecf621]"
/* SCSS */
$brand: #ecf621;
/* SwiftUI */
Color(red: 0.925, green: 0.965, blue: 0.129)
/* Android */
Color.parseColor("#ecf621")Accessibility — WCAG contrast
Aa
#ecf621 on white: 1.18:1
AA ✗ fail · AA-large ✗ · AAA ✗
Aa
#ecf621 on black: 17.77:1
AA ✓ pass · AA-large ✓ · AAA ✓
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red92.5%
Green96.5%
Blue12.9%
CMYK percentages
Cyan4.1%
Magenta0.0%
Yellow86.6%
Key (black)3.5%
Color previews
#ecf621 text on a black background
contrast 17.77:1
Card sample
#ecf621 text on a white background
contrast 1.18:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #ecf621;
Background color
Panel with #ecf621 background
background-color: #ecf621;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #ecf621;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(236, 246, 33, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(236, 246, 33, 0.45);
Border & gradient
Gradient panel
border: 3px solid #ecf621; background: linear-gradient(135deg, #ecf621, #5EF621);