#3556dd
a balanced, vivid blue · warm · closest name: royalblue
RGB
53, 86, 221
HSL
228°, 71%, 54%
CMYK
76, 61, 0, 13
Luminance
0.1263
Every format
| HEX | #3556dd |
| RGB | rgb(53, 86, 221) |
| HSL | hsl(228, 71%, 54%) |
| CMYK | cmyk(76%, 61%, 0%, 13%) |
| LAB | lab(42.2 35.4 -72.2) |
| LCH | lch(42.2 80.4 296.1) |
| OKLCH | oklch(0.515 0.209 267.6) |
Copy-ready code
/* CSS */
color: #3556dd;
background-color: #3556dd;
/* Tailwind (arbitrary) */
class="text-[#3556dd] bg-[#3556dd]"
/* SCSS */
$brand: #3556dd;
/* SwiftUI */
Color(red: 0.208, green: 0.337, blue: 0.867)
/* Android */
Color.parseColor("#3556dd")Accessibility — WCAG contrast
Aa
#3556dd on white: 5.95:1
AA ✓ pass · AA-large ✓ · AAA ✗
Aa
#3556dd on black: 3.53:1
AA ✗ fail · AA-large ✓ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red20.8%
Green33.7%
Blue86.7%
CMYK percentages
Cyan76.0%
Magenta61.1%
Yellow0.0%
Key (black)13.3%
Color previews
#3556dd text on a black background
contrast 3.53:1
Card sample
#3556dd text on a white background
contrast 5.95:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #3556dd;
Background color
Panel with #3556dd background
background-color: #3556dd;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #3556dd;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(53, 86, 221, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(53, 86, 221, 0.45);
Border & gradient
Gradient panel
border: 3px solid #3556dd; background: linear-gradient(135deg, #3556dd, #8435DD);