#fdef21
a balanced, electric yellow · cool · closest name: yellow
RGB
253, 239, 33
HSL
56°, 98%, 56%
CMYK
0, 6, 87, 1
Luminance
0.8273
Every format
| HEX | #fdef21 |
| RGB | rgb(253, 239, 33) |
| HSL | hsl(56, 98%, 56%) |
| CMYK | cmyk(0%, 6%, 87%, 1%) |
| LAB | lab(92.9 -14.3 87.7) |
| LCH | lch(92.9 88.9 99.3) |
| OKLCH | oklch(0.934 0.193 105.1) |
Copy-ready code
/* CSS */
color: #fdef21;
background-color: #fdef21;
/* Tailwind (arbitrary) */
class="text-[#fdef21] bg-[#fdef21]"
/* SCSS */
$brand: #fdef21;
/* SwiftUI */
Color(red: 0.992, green: 0.937, blue: 0.129)
/* Android */
Color.parseColor("#fdef21")Accessibility — WCAG contrast
Aa
#fdef21 on white: 1.20:1
AA ✗ fail · AA-large ✗ · AAA ✗
Aa
#fdef21 on black: 17.55:1
AA ✓ pass · AA-large ✓ · AAA ✓
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red99.2%
Green93.7%
Blue12.9%
CMYK percentages
Cyan0.0%
Magenta5.5%
Yellow87.0%
Key (black)0.8%
Color previews
#fdef21 text on a black background
contrast 17.55:1
Card sample
#fdef21 text on a white background
contrast 1.20:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #fdef21;
Background color
Panel with #fdef21 background
background-color: #fdef21;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #fdef21;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(253, 239, 33, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(253, 239, 33, 0.45);
Border & gradient
Gradient panel
border: 3px solid #fdef21; background: linear-gradient(135deg, #fdef21, #78FD21);