#3903df
a dark, electric blue · warm · closest name: blue
RGB
57, 3, 223
HSL
255°, 97%, 44%
CMYK
74, 99, 0, 13
Luminance
0.0626
Every format
| HEX | #3903df |
| RGB | rgb(57, 3, 223) |
| HSL | hsl(255, 97%, 44%) |
| CMYK | cmyk(74%, 99%, 0%, 13%) |
| LAB | lab(30.1 71.9 -93.4) |
| LCH | lch(30.1 117.8 307.6) |
| OKLCH | oklch(0.431 0.270 274.5) |
Copy-ready code
/* CSS */
color: #3903df;
background-color: #3903df;
/* Tailwind (arbitrary) */
class="text-[#3903df] bg-[#3903df]"
/* SCSS */
$brand: #3903df;
/* SwiftUI */
Color(red: 0.224, green: 0.012, blue: 0.875)
/* Android */
Color.parseColor("#3903df")Accessibility — WCAG contrast
Aa
#3903df on white: 9.32:1
AA ✓ pass · AA-large ✓ · AAA ✓
Aa
#3903df on black: 2.25:1
AA ✗ fail · AA-large ✗ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red22.4%
Green1.2%
Blue87.5%
CMYK percentages
Cyan74.4%
Magenta98.7%
Yellow0.0%
Key (black)12.5%
Color previews
#3903df text on a black background
contrast 2.25:1
Card sample
#3903df text on a white background
contrast 9.32:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #3903df;
Background color
Panel with #3903df background
background-color: #3903df;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #3903df;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(57, 3, 223, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(57, 3, 223, 0.45);
Border & gradient
Gradient panel
border: 3px solid #3903df; background: linear-gradient(135deg, #3903df, #CB03DF);