#421bbc
a dark, vivid blue · warm · closest name: navy
RGB
66, 27, 188
HSL
255°, 75%, 42%
CMYK
65, 86, 0, 26
Luminance
0.0557
Every format
| HEX | #421bbc |
| RGB | rgb(66, 27, 188) |
| HSL | hsl(255, 75%, 42%) |
| CMYK | cmyk(65%, 86%, 0%, 26%) |
| LAB | lab(28.3 57.8 -75.8) |
| LCH | lch(28.3 95.4 307.3) |
| OKLCH | oklch(0.409 0.223 281.2) |
Copy-ready code
/* CSS */
color: #421bbc;
background-color: #421bbc;
/* Tailwind (arbitrary) */
class="text-[#421bbc] bg-[#421bbc]"
/* SCSS */
$brand: #421bbc;
/* SwiftUI */
Color(red: 0.259, green: 0.106, blue: 0.737)
/* Android */
Color.parseColor("#421bbc")Accessibility — WCAG contrast
Aa
#421bbc on white: 9.93:1
AA ✓ pass · AA-large ✓ · AAA ✓
Aa
#421bbc on black: 2.11:1
AA ✗ fail · AA-large ✗ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red25.9%
Green10.6%
Blue73.7%
CMYK percentages
Cyan64.9%
Magenta85.6%
Yellow0.0%
Key (black)26.3%
Color previews
#421bbc text on a black background
contrast 2.11:1
Card sample
#421bbc text on a white background
contrast 9.93:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #421bbc;
Background color
Panel with #421bbc background
background-color: #421bbc;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #421bbc;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(66, 27, 188, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(66, 27, 188, 0.45);
Border & gradient
Gradient panel
border: 3px solid #421bbc; background: linear-gradient(135deg, #421bbc, #AD1BBC);