#3658dd
a balanced, vivid blue · warm · closest name: royalblue
RGB
54, 88, 221
HSL
228°, 71%, 54%
CMYK
76, 60, 0, 13
Luminance
0.1298
Every format
| HEX | #3658dd |
| RGB | rgb(54, 88, 221) |
| HSL | hsl(228, 71%, 54%) |
| CMYK | cmyk(76%, 60%, 0%, 13%) |
| LAB | lab(42.7 34.3 -71.3) |
| LCH | lch(42.7 79.1 295.7) |
| OKLCH | oklch(0.519 0.206 267.5) |
Copy-ready code
/* CSS */
color: #3658dd;
background-color: #3658dd;
/* Tailwind (arbitrary) */
class="text-[#3658dd] bg-[#3658dd]"
/* SCSS */
$brand: #3658dd;
/* SwiftUI */
Color(red: 0.212, green: 0.345, blue: 0.867)
/* Android */
Color.parseColor("#3658dd")Accessibility — WCAG contrast
Aa
#3658dd on white: 5.84:1
AA ✓ pass · AA-large ✓ · AAA ✗
Aa
#3658dd on black: 3.60:1
AA ✗ fail · AA-large ✓ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red21.2%
Green34.5%
Blue86.7%
CMYK percentages
Cyan75.6%
Magenta60.2%
Yellow0.0%
Key (black)13.3%
Color previews
#3658dd text on a black background
contrast 3.60:1
Card sample
#3658dd text on a white background
contrast 5.84:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #3658dd;
Background color
Panel with #3658dd background
background-color: #3658dd;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #3658dd;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(54, 88, 221, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(54, 88, 221, 0.45);
Border & gradient
Gradient panel
border: 3px solid #3658dd; background: linear-gradient(135deg, #3658dd, #8336DD);