#378df3
a balanced, electric blue · cool · closest name: dodgerblue
RGB
55, 141, 243
HSL
213°, 89%, 58%
CMYK
77, 42, 0, 5
Luminance
0.2633
Every format
| HEX | #378df3 |
| RGB | rgb(55, 141, 243) |
| HSL | hsl(213, 89%, 58%) |
| CMYK | cmyk(77%, 42%, 0%, 5%) |
| LAB | lab(58.4 9.3 -58.4) |
| LCH | lch(58.4 59.1 279.1) |
| OKLCH | oklch(0.643 0.173 255.0) |
Copy-ready code
/* CSS */
color: #378df3;
background-color: #378df3;
/* Tailwind (arbitrary) */
class="text-[#378df3] bg-[#378df3]"
/* SCSS */
$brand: #378df3;
/* SwiftUI */
Color(red: 0.216, green: 0.553, blue: 0.953)
/* Android */
Color.parseColor("#378df3")Accessibility — WCAG contrast
Aa
#378df3 on white: 3.35:1
AA ✗ fail · AA-large ✓ · AAA ✗
Aa
#378df3 on black: 6.27:1
AA ✓ pass · AA-large ✓ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red21.6%
Green55.3%
Blue95.3%
CMYK percentages
Cyan77.4%
Magenta42.0%
Yellow0.0%
Key (black)4.7%
Color previews
#378df3 text on a black background
contrast 6.27:1
Card sample
#378df3 text on a white background
contrast 3.35:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #378df3;
Background color
Panel with #378df3 background
background-color: #378df3;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #378df3;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(55, 141, 243, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(55, 141, 243, 0.45);
Border & gradient
Gradient panel
border: 3px solid #378df3; background: linear-gradient(135deg, #378df3, #5E37F3);