#5b40df
a balanced, vivid blue · warm · closest name: slateblue
RGB
91, 64, 223
HSL
250°, 71%, 56%
CMYK
59, 71, 0, 13
Luminance
0.1122
Every format
| HEX | #5b40df |
| RGB | rgb(91, 64, 223) |
| HSL | hsl(250, 71%, 56%) |
| CMYK | cmyk(59%, 71%, 0%, 13%) |
| LAB | lab(39.9 53.6 -76.9) |
| LCH | lch(39.9 93.7 304.9) |
| OKLCH | oklch(0.506 0.227 282.4) |
Copy-ready code
/* CSS */
color: #5b40df;
background-color: #5b40df;
/* Tailwind (arbitrary) */
class="text-[#5b40df] bg-[#5b40df]"
/* SCSS */
$brand: #5b40df;
/* SwiftUI */
Color(red: 0.357, green: 0.251, blue: 0.875)
/* Android */
Color.parseColor("#5b40df")Accessibility — WCAG contrast
Aa
#5b40df on white: 6.47:1
AA ✓ pass · AA-large ✓ · AAA ✗
Aa
#5b40df on black: 3.24:1
AA ✗ fail · AA-large ✓ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red35.7%
Green25.1%
Blue87.5%
CMYK percentages
Cyan59.2%
Magenta71.3%
Yellow0.0%
Key (black)12.5%
Color previews
#5b40df text on a black background
contrast 3.24:1
Card sample
#5b40df text on a white background
contrast 6.47:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #5b40df;
Background color
Panel with #5b40df background
background-color: #5b40df;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #5b40df;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(91, 64, 223, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(91, 64, 223, 0.45);
Border & gradient
Gradient panel
border: 3px solid #5b40df; background: linear-gradient(135deg, #5b40df, #C540DF);