#421dfb
a balanced, electric blue · warm · closest name: blue
RGB
66, 29, 251
HSL
250°, 97%, 55%
CMYK
74, 88, 0, 2
Luminance
0.0900
Every format
| HEX | #421dfb |
| RGB | rgb(66, 29, 251) |
| HSL | hsl(250, 97%, 55%) |
| CMYK | cmyk(74%, 88%, 0%, 2%) |
| LAB | lab(36.0 73.8 -99.4) |
| LCH | lch(36.0 123.8 306.6) |
| OKLCH | oklch(0.482 0.288 274.3) |
Copy-ready code
/* CSS */
color: #421dfb;
background-color: #421dfb;
/* Tailwind (arbitrary) */
class="text-[#421dfb] bg-[#421dfb]"
/* SCSS */
$brand: #421dfb;
/* SwiftUI */
Color(red: 0.259, green: 0.114, blue: 0.984)
/* Android */
Color.parseColor("#421dfb")Accessibility — WCAG contrast
Aa
#421dfb on white: 7.50:1
AA ✓ pass · AA-large ✓ · AAA ✓
Aa
#421dfb on black: 2.80:1
AA ✗ fail · AA-large ✗ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red25.9%
Green11.4%
Blue98.4%
CMYK percentages
Cyan73.7%
Magenta88.4%
Yellow0.0%
Key (black)1.6%
Color previews
#421dfb text on a black background
contrast 2.80:1
Card sample
#421dfb text on a white background
contrast 7.50:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #421dfb;
Background color
Panel with #421dfb background
background-color: #421dfb;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #421dfb;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(66, 29, 251, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(66, 29, 251, 0.45);
Border & gradient
Gradient panel
border: 3px solid #421dfb; background: linear-gradient(135deg, #421dfb, #D61DFB);