#423cd3
a balanced, vivid blue · warm · closest name: slateblue
RGB
66, 60, 211
HSL
242°, 63%, 53%
CMYK
69, 72, 0, 17
Luminance
0.0909
Every format
| HEX | #423cd3 |
| RGB | rgb(66, 60, 211) |
| HSL | hsl(242, 63%, 53%) |
| CMYK | cmyk(69%, 72%, 0%, 17%) |
| LAB | lab(36.2 49.0 -76.3) |
| LCH | lch(36.2 90.7 302.7) |
| OKLCH | oklch(0.470 0.222 275.4) |
Copy-ready code
/* CSS */
color: #423cd3;
background-color: #423cd3;
/* Tailwind (arbitrary) */
class="text-[#423cd3] bg-[#423cd3]"
/* SCSS */
$brand: #423cd3;
/* SwiftUI */
Color(red: 0.259, green: 0.235, blue: 0.827)
/* Android */
Color.parseColor("#423cd3")Accessibility — WCAG contrast
Aa
#423cd3 on white: 7.45:1
AA ✓ pass · AA-large ✓ · AAA ✓
Aa
#423cd3 on black: 2.82:1
AA ✗ fail · AA-large ✗ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red25.9%
Green23.5%
Blue82.7%
CMYK percentages
Cyan68.7%
Magenta71.6%
Yellow0.0%
Key (black)17.3%
Color previews
#423cd3 text on a black background
contrast 2.82:1
Card sample
#423cd3 text on a white background
contrast 7.45:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #423cd3;
Background color
Panel with #423cd3 background
background-color: #423cd3;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #423cd3;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(66, 60, 211, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(66, 60, 211, 0.45);
Border & gradient
Gradient panel
border: 3px solid #423cd3; background: linear-gradient(135deg, #423cd3, #A73CD3);