#3903eb
a balanced, electric blue · warm · closest name: blue
RGB
57, 3, 235
HSL
254°, 98%, 47%
CMYK
76, 99, 0, 8
Luminance
0.0693
Every format
| HEX | #3903eb |
| RGB | rgb(57, 3, 235) |
| HSL | hsl(254, 98%, 47%) |
| CMYK | cmyk(76%, 99%, 0%, 8%) |
| LAB | lab(31.6 74.7 -97.6) |
| LCH | lch(31.6 122.9 307.4) |
| OKLCH | oklch(0.446 0.282 273.5) |
Copy-ready code
/* CSS */
color: #3903eb;
background-color: #3903eb;
/* Tailwind (arbitrary) */
class="text-[#3903eb] bg-[#3903eb]"
/* SCSS */
$brand: #3903eb;
/* SwiftUI */
Color(red: 0.224, green: 0.012, blue: 0.922)
/* Android */
Color.parseColor("#3903eb")Accessibility — WCAG contrast
Aa
#3903eb on white: 8.80:1
AA ✓ pass · AA-large ✓ · AAA ✓
Aa
#3903eb on black: 2.39:1
AA ✗ fail · AA-large ✗ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red22.4%
Green1.2%
Blue92.2%
CMYK percentages
Cyan75.7%
Magenta98.7%
Yellow0.0%
Key (black)7.8%
Color previews
#3903eb text on a black background
contrast 2.39:1
Card sample
#3903eb text on a white background
contrast 8.80:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #3903eb;
Background color
Panel with #3903eb background
background-color: #3903eb;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #3903eb;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(57, 3, 235, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(57, 3, 235, 0.45);
Border & gradient
Gradient panel
border: 3px solid #3903eb; background: linear-gradient(135deg, #3903eb, #D403EB);