#421fef
a balanced, electric blue · warm · closest name: blue
RGB
66, 31, 239
HSL
250°, 87%, 53%
CMYK
72, 87, 0, 6
Luminance
0.0837
Every format
| HEX | #421fef |
| RGB | rgb(66, 31, 239) |
| HSL | hsl(250, 87%, 53%) |
| CMYK | cmyk(72%, 87%, 0%, 6%) |
| LAB | lab(34.7 70.1 -94.7) |
| LCH | lch(34.7 117.8 306.5) |
| OKLCH | oklch(0.469 0.275 275.2) |
Copy-ready code
/* CSS */
color: #421fef;
background-color: #421fef;
/* Tailwind (arbitrary) */
class="text-[#421fef] bg-[#421fef]"
/* SCSS */
$brand: #421fef;
/* SwiftUI */
Color(red: 0.259, green: 0.122, blue: 0.937)
/* Android */
Color.parseColor("#421fef")Accessibility — WCAG contrast
Aa
#421fef on white: 7.85:1
AA ✓ pass · AA-large ✓ · AAA ✓
Aa
#421fef on black: 2.67:1
AA ✗ fail · AA-large ✗ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red25.9%
Green12.2%
Blue93.7%
CMYK percentages
Cyan72.4%
Magenta87.0%
Yellow0.0%
Key (black)6.3%
Color previews
#421fef text on a black background
contrast 2.67:1
Card sample
#421fef text on a white background
contrast 7.85:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #421fef;
Background color
Panel with #421fef background
background-color: #421fef;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #421fef;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(66, 31, 239, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(66, 31, 239, 0.45);
Border & gradient
Gradient panel
border: 3px solid #421fef; background: linear-gradient(135deg, #421fef, #CD1FEF);