#3904eb
a balanced, electric blue · warm · closest name: blue
RGB
57, 4, 235
HSL
254°, 97%, 47%
CMYK
76, 98, 0, 8
Luminance
0.0695
Every format
| HEX | #3904eb |
| RGB | rgb(57, 4, 235) |
| HSL | hsl(254, 97%, 47%) |
| CMYK | cmyk(76%, 98%, 0%, 8%) |
| LAB | lab(31.7 74.6 -97.5) |
| LCH | lch(31.7 122.8 307.4) |
| OKLCH | oklch(0.446 0.282 273.5) |
Copy-ready code
/* CSS */
color: #3904eb;
background-color: #3904eb;
/* Tailwind (arbitrary) */
class="text-[#3904eb] bg-[#3904eb]"
/* SCSS */
$brand: #3904eb;
/* SwiftUI */
Color(red: 0.224, green: 0.016, blue: 0.922)
/* Android */
Color.parseColor("#3904eb")Accessibility — WCAG contrast
Aa
#3904eb on white: 8.78:1
AA ✓ pass · AA-large ✓ · AAA ✓
Aa
#3904eb on black: 2.39:1
AA ✗ fail · AA-large ✗ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red22.4%
Green1.6%
Blue92.2%
CMYK percentages
Cyan75.7%
Magenta98.3%
Yellow0.0%
Key (black)7.8%
Color previews
#3904eb text on a black background
contrast 2.39:1
Card sample
#3904eb text on a white background
contrast 8.78:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #3904eb;
Background color
Panel with #3904eb background
background-color: #3904eb;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #3904eb;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(57, 4, 235, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(57, 4, 235, 0.45);
Border & gradient
Gradient panel
border: 3px solid #3904eb; background: linear-gradient(135deg, #3904eb, #D304EB);