#5b55cc
a balanced, vivid blue · warm · closest name: slateblue
RGB
91, 85, 204
HSL
243°, 54%, 57%
CMYK
55, 58, 0, 20
Luminance
0.1308
Every format
| HEX | #5b55cc |
| RGB | rgb(91, 85, 204) |
| HSL | hsl(243, 54%, 57%) |
| CMYK | cmyk(55%, 58%, 0%, 20%) |
| LAB | lab(42.9 35.7 -61.2) |
| LCH | lch(42.9 70.9 300.3) |
| OKLCH | oklch(0.522 0.179 280.5) |
Copy-ready code
/* CSS */
color: #5b55cc;
background-color: #5b55cc;
/* Tailwind (arbitrary) */
class="text-[#5b55cc] bg-[#5b55cc]"
/* SCSS */
$brand: #5b55cc;
/* SwiftUI */
Color(red: 0.357, green: 0.333, blue: 0.800)
/* Android */
Color.parseColor("#5b55cc")Accessibility — WCAG contrast
Aa
#5b55cc on white: 5.81:1
AA ✓ pass · AA-large ✓ · AAA ✗
Aa
#5b55cc on black: 3.62:1
AA ✗ fail · AA-large ✓ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red35.7%
Green33.3%
Blue80.0%
CMYK percentages
Cyan55.4%
Magenta58.3%
Yellow0.0%
Key (black)20.0%
Color previews
#5b55cc text on a black background
contrast 3.62:1
Card sample
#5b55cc text on a white background
contrast 5.81:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #5b55cc;
Background color
Panel with #5b55cc background
background-color: #5b55cc;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #5b55cc;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(91, 85, 204, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(91, 85, 204, 0.45);
Border & gradient
Gradient panel
border: 3px solid #5b55cc; background: linear-gradient(135deg, #5b55cc, #AA55CC);