#3779eb
a balanced, electric blue · cool · closest name: royalblue
RGB
55, 121, 235
HSL
218°, 82%, 57%
CMYK
77, 49, 0, 8
Luminance
0.2049
Every format
| HEX | #3779eb |
| RGB | rgb(55, 121, 235) |
| HSL | hsl(218, 82%, 57%) |
| CMYK | cmyk(77%, 49%, 0%, 8%) |
| LAB | lab(52.4 18.6 -63.5) |
| LCH | lch(52.4 66.2 286.4) |
| OKLCH | oklch(0.596 0.185 260.5) |
Copy-ready code
/* CSS */
color: #3779eb;
background-color: #3779eb;
/* Tailwind (arbitrary) */
class="text-[#3779eb] bg-[#3779eb]"
/* SCSS */
$brand: #3779eb;
/* SwiftUI */
Color(red: 0.216, green: 0.475, blue: 0.922)
/* Android */
Color.parseColor("#3779eb")Accessibility — WCAG contrast
Aa
#3779eb on white: 4.12:1
AA ✗ fail · AA-large ✓ · AAA ✗
Aa
#3779eb on black: 5.10:1
AA ✓ pass · AA-large ✓ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red21.6%
Green47.5%
Blue92.2%
CMYK percentages
Cyan76.6%
Magenta48.5%
Yellow0.0%
Key (black)7.8%
Color previews
#3779eb text on a black background
contrast 5.10:1
Card sample
#3779eb text on a white background
contrast 4.12:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #3779eb;
Background color
Panel with #3779eb background
background-color: #3779eb;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #3779eb;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(55, 121, 235, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(55, 121, 235, 0.45);
Border & gradient
Gradient panel
border: 3px solid #3779eb; background: linear-gradient(135deg, #3779eb, #6D37EB);