#3355df
a balanced, vivid blue · warm · closest name: royalblue
RGB
51, 85, 223
HSL
228°, 73%, 54%
CMYK
77, 62, 0, 13
Luminance
0.1253
Every format
| HEX | #3355df |
| RGB | rgb(51, 85, 223) |
| HSL | hsl(228, 73%, 54%) |
| CMYK | cmyk(77%, 62%, 0%, 13%) |
| LAB | lab(42.0 36.6 -73.6) |
| LCH | lch(42.0 82.2 296.4) |
| OKLCH | oklch(0.514 0.213 267.4) |
Copy-ready code
/* CSS */
color: #3355df;
background-color: #3355df;
/* Tailwind (arbitrary) */
class="text-[#3355df] bg-[#3355df]"
/* SCSS */
$brand: #3355df;
/* SwiftUI */
Color(red: 0.200, green: 0.333, blue: 0.875)
/* Android */
Color.parseColor("#3355df")Accessibility — WCAG contrast
Aa
#3355df on white: 5.99:1
AA ✓ pass · AA-large ✓ · AAA ✗
Aa
#3355df on black: 3.51:1
AA ✗ fail · AA-large ✓ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red20.0%
Green33.3%
Blue87.5%
CMYK percentages
Cyan77.1%
Magenta61.9%
Yellow0.0%
Key (black)12.5%
Color previews
#3355df text on a black background
contrast 3.51:1
Card sample
#3355df text on a white background
contrast 5.99:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #3355df;
Background color
Panel with #3355df background
background-color: #3355df;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #3355df;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(51, 85, 223, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(51, 85, 223, 0.45);
Border & gradient
Gradient panel
border: 3px solid #3355df; background: linear-gradient(135deg, #3355df, #8333DF);