#ecff1b
a balanced, electric yellow · cool · closest name: yellow
RGB
236, 255, 27
HSL
65°, 100%, 55%
CMYK
8, 0, 89, 0
Luminance
0.8943
Every format
| HEX | #ecff1b |
| RGB | rgb(236, 255, 27) |
| HSL | hsl(65, 100%, 55%) |
| CMYK | cmyk(8%, 0%, 89%, 0%) |
| LAB | lab(95.8 -29.0 90.4) |
| LCH | lch(95.8 94.9 107.8) |
| OKLCH | oklch(0.954 0.213 115.2) |
Copy-ready code
/* CSS */
color: #ecff1b;
background-color: #ecff1b;
/* Tailwind (arbitrary) */
class="text-[#ecff1b] bg-[#ecff1b]"
/* SCSS */
$brand: #ecff1b;
/* SwiftUI */
Color(red: 0.925, green: 1.000, blue: 0.106)
/* Android */
Color.parseColor("#ecff1b")Accessibility — WCAG contrast
Aa
#ecff1b on white: 1.11:1
AA ✗ fail · AA-large ✗ · AAA ✗
Aa
#ecff1b on black: 18.89:1
AA ✓ pass · AA-large ✓ · AAA ✓
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red92.5%
Green100.0%
Blue10.6%
CMYK percentages
Cyan7.5%
Magenta0.0%
Yellow89.4%
Key (black)0.0%
Color previews
#ecff1b text on a black background
contrast 18.89:1
Card sample
#ecff1b text on a white background
contrast 1.11:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #ecff1b;
Background color
Panel with #ecff1b background
background-color: #ecff1b;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #ecff1b;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(236, 255, 27, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(236, 255, 27, 0.45);
Border & gradient
Gradient panel
border: 3px solid #ecff1b; background: linear-gradient(135deg, #ecff1b, #54FF1B);