#3783df
a balanced, vivid blue · cool · closest name: dodgerblue
RGB
55, 131, 223
HSL
213°, 72%, 55%
CMYK
75, 41, 0, 13
Luminance
0.2237
Every format
| HEX | #3783df |
| RGB | rgb(55, 131, 223) |
| HSL | hsl(213, 72%, 55%) |
| CMYK | cmyk(75%, 41%, 0%, 13%) |
| LAB | lab(54.4 8.1 -53.6) |
| LCH | lch(54.4 54.2 278.6) |
| OKLCH | oklch(0.609 0.158 255.1) |
Copy-ready code
/* CSS */
color: #3783df;
background-color: #3783df;
/* Tailwind (arbitrary) */
class="text-[#3783df] bg-[#3783df]"
/* SCSS */
$brand: #3783df;
/* SwiftUI */
Color(red: 0.216, green: 0.514, blue: 0.875)
/* Android */
Color.parseColor("#3783df")Accessibility — WCAG contrast
Aa
#3783df on white: 3.84:1
AA ✗ fail · AA-large ✓ · AAA ✗
Aa
#3783df on black: 5.47:1
AA ✓ pass · AA-large ✓ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red21.6%
Green51.4%
Blue87.5%
CMYK percentages
Cyan75.3%
Magenta41.3%
Yellow0.0%
Key (black)12.5%
Color previews
#3783df text on a black background
contrast 5.47:1
Card sample
#3783df text on a white background
contrast 3.84:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #3783df;
Background color
Panel with #3783df background
background-color: #3783df;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #3783df;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(55, 131, 223, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(55, 131, 223, 0.45);
Border & gradient
Gradient panel
border: 3px solid #3783df; background: linear-gradient(135deg, #3783df, #5B37DF);