#5b66df
a balanced, vivid blue · warm · closest name: royalblue
RGB
91, 102, 223
HSL
235°, 67%, 62%
CMYK
59, 54, 0, 13
Luminance
0.1705
Every format
| HEX | #5b66df |
| RGB | rgb(91, 102, 223) |
| HSL | hsl(235, 67%, 62%) |
| CMYK | cmyk(59%, 54%, 0%, 13%) |
| LAB | lab(48.3 31.5 -63.3) |
| LCH | lch(48.3 70.7 296.5) |
| OKLCH | oklch(0.567 0.182 275.1) |
Copy-ready code
/* CSS */
color: #5b66df;
background-color: #5b66df;
/* Tailwind (arbitrary) */
class="text-[#5b66df] bg-[#5b66df]"
/* SCSS */
$brand: #5b66df;
/* SwiftUI */
Color(red: 0.357, green: 0.400, blue: 0.875)
/* Android */
Color.parseColor("#5b66df")Accessibility — WCAG contrast
Aa
#5b66df on white: 4.76:1
AA ✓ pass · AA-large ✓ · AAA ✗
Aa
#5b66df on black: 4.41:1
AA ✗ fail · AA-large ✓ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red35.7%
Green40.0%
Blue87.5%
CMYK percentages
Cyan59.2%
Magenta54.3%
Yellow0.0%
Key (black)12.5%
Color previews
#5b66df text on a black background
contrast 4.41:1
Card sample
#5b66df text on a white background
contrast 4.76:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #5b66df;
Background color
Panel with #5b66df background
background-color: #5b66df;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #5b66df;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(91, 102, 223, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(91, 102, 223, 0.45);
Border & gradient
Gradient panel
border: 3px solid #5b66df; background: linear-gradient(135deg, #5b66df, #A85BDF);