#403fd3
a balanced, vivid blue · warm · closest name: slateblue
RGB
64, 63, 211
HSL
240°, 63%, 54%
CMYK
70, 70, 0, 17
Luminance
0.0935
Every format
| HEX | #403fd3 |
| RGB | rgb(64, 63, 211) |
| HSL | hsl(240, 63%, 54%) |
| CMYK | cmyk(70%, 70%, 0%, 17%) |
| LAB | lab(36.6 47.1 -75.5) |
| LCH | lch(36.6 89.0 302.0) |
| OKLCH | oklch(0.474 0.219 274.4) |
Copy-ready code
/* CSS */
color: #403fd3;
background-color: #403fd3;
/* Tailwind (arbitrary) */
class="text-[#403fd3] bg-[#403fd3]"
/* SCSS */
$brand: #403fd3;
/* SwiftUI */
Color(red: 0.251, green: 0.247, blue: 0.827)
/* Android */
Color.parseColor("#403fd3")Accessibility — WCAG contrast
Aa
#403fd3 on white: 7.32:1
AA ✓ pass · AA-large ✓ · AAA ✓
Aa
#403fd3 on black: 2.87:1
AA ✗ fail · AA-large ✗ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red25.1%
Green24.7%
Blue82.7%
CMYK percentages
Cyan69.7%
Magenta70.1%
Yellow0.0%
Key (black)17.3%
Color previews
#403fd3 text on a black background
contrast 2.87:1
Card sample
#403fd3 text on a white background
contrast 7.32:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #403fd3;
Background color
Panel with #403fd3 background
background-color: #403fd3;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #403fd3;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(64, 63, 211, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(64, 63, 211, 0.45);
Border & gradient
Gradient panel
border: 3px solid #403fd3; background: linear-gradient(135deg, #403fd3, #A33FD3);