#3663eb
a balanced, electric blue · warm · closest name: royalblue
RGB
54, 99, 235
HSL
225°, 82%, 57%
CMYK
77, 58, 0, 8
Luminance
0.1571
Every format
| HEX | #3663eb |
| RGB | rgb(54, 99, 235) |
| HSL | hsl(225, 82%, 57%) |
| CMYK | cmyk(77%, 58%, 0%, 8%) |
| LAB | lab(46.6 32.4 -73.0) |
| LCH | lch(46.6 79.8 293.9) |
| OKLCH | oklch(0.552 0.211 265.7) |
Copy-ready code
/* CSS */
color: #3663eb;
background-color: #3663eb;
/* Tailwind (arbitrary) */
class="text-[#3663eb] bg-[#3663eb]"
/* SCSS */
$brand: #3663eb;
/* SwiftUI */
Color(red: 0.212, green: 0.388, blue: 0.922)
/* Android */
Color.parseColor("#3663eb")Accessibility — WCAG contrast
Aa
#3663eb on white: 5.07:1
AA ✓ pass · AA-large ✓ · AAA ✗
Aa
#3663eb on black: 4.14:1
AA ✗ fail · AA-large ✓ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red21.2%
Green38.8%
Blue92.2%
CMYK percentages
Cyan77.0%
Magenta57.9%
Yellow0.0%
Key (black)7.8%
Color previews
#3663eb text on a black background
contrast 4.14:1
Card sample
#3663eb text on a white background
contrast 5.07:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #3663eb;
Background color
Panel with #3663eb background
background-color: #3663eb;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #3663eb;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(54, 99, 235, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(54, 99, 235, 0.45);
Border & gradient
Gradient panel
border: 3px solid #3663eb; background: linear-gradient(135deg, #3663eb, #8236EB);