#3909eb
a balanced, electric blue · warm · closest name: blue
RGB
57, 9, 235
HSL
253°, 93%, 48%
CMYK
76, 96, 0, 8
Luminance
0.0706
Every format
| HEX | #3909eb |
| RGB | rgb(57, 9, 235) |
| HSL | hsl(253, 93%, 48%) |
| CMYK | cmyk(76%, 96%, 0%, 8%) |
| LAB | lab(31.9 73.8 -97.1) |
| LCH | lch(31.9 122.0 307.2) |
| OKLCH | oklch(0.448 0.281 273.4) |
Copy-ready code
/* CSS */
color: #3909eb;
background-color: #3909eb;
/* Tailwind (arbitrary) */
class="text-[#3909eb] bg-[#3909eb]"
/* SCSS */
$brand: #3909eb;
/* SwiftUI */
Color(red: 0.224, green: 0.035, blue: 0.922)
/* Android */
Color.parseColor("#3909eb")Accessibility — WCAG contrast
Aa
#3909eb on white: 8.70:1
AA ✓ pass · AA-large ✓ · AAA ✓
Aa
#3909eb on black: 2.41:1
AA ✗ fail · AA-large ✗ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red22.4%
Green3.5%
Blue92.2%
CMYK percentages
Cyan75.7%
Magenta96.2%
Yellow0.0%
Key (black)7.8%
Color previews
#3909eb text on a black background
contrast 2.41:1
Card sample
#3909eb text on a white background
contrast 8.70:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #3909eb;
Background color
Panel with #3909eb background
background-color: #3909eb;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #3909eb;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(57, 9, 235, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(57, 9, 235, 0.45);
Border & gradient
Gradient panel
border: 3px solid #3909eb; background: linear-gradient(135deg, #3909eb, #CF09EB);