#421df3
a balanced, electric blue · warm · closest name: blue
RGB
66, 29, 243
HSL
250°, 90%, 53%
CMYK
73, 88, 0, 5
Luminance
0.0851
Every format
| HEX | #421df3 |
| RGB | rgb(66, 29, 243) |
| HSL | hsl(250, 90%, 53%) |
| CMYK | cmyk(73%, 88%, 0%, 5%) |
| LAB | lab(35.0 71.7 -96.5) |
| LCH | lch(35.0 120.2 306.6) |
| OKLCH | oklch(0.473 0.280 274.9) |
Copy-ready code
/* CSS */
color: #421df3;
background-color: #421df3;
/* Tailwind (arbitrary) */
class="text-[#421df3] bg-[#421df3]"
/* SCSS */
$brand: #421df3;
/* SwiftUI */
Color(red: 0.259, green: 0.114, blue: 0.953)
/* Android */
Color.parseColor("#421df3")Accessibility — WCAG contrast
Aa
#421df3 on white: 7.77:1
AA ✓ pass · AA-large ✓ · AAA ✓
Aa
#421df3 on black: 2.70:1
AA ✗ fail · AA-large ✗ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red25.9%
Green11.4%
Blue95.3%
CMYK percentages
Cyan72.8%
Magenta88.1%
Yellow0.0%
Key (black)4.7%
Color previews
#421df3 text on a black background
contrast 2.70:1
Card sample
#421df3 text on a white background
contrast 7.77:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #421df3;
Background color
Panel with #421df3 background
background-color: #421df3;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #421df3;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(66, 29, 243, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(66, 29, 243, 0.45);
Border & gradient
Gradient panel
border: 3px solid #421df3; background: linear-gradient(135deg, #421df3, #D11DF3);