#0342df
a dark, electric blue · cool · closest name: slateblue
RGB
3, 66, 223
HSL
223°, 97%, 44%
CMYK
99, 70, 0, 13
Luminance
0.0924
Every format
| HEX | #0342df |
| RGB | rgb(3, 66, 223) |
| HSL | hsl(223, 97%, 44%) |
| CMYK | cmyk(99%, 70%, 0%, 13%) |
| LAB | lab(36.4 45.9 -82.8) |
| LCH | lch(36.4 94.7 299.0) |
| OKLCH | oklch(0.470 0.242 263.4) |
Copy-ready code
/* CSS */
color: #0342df;
background-color: #0342df;
/* Tailwind (arbitrary) */
class="text-[#0342df] bg-[#0342df]"
/* SCSS */
$brand: #0342df;
/* SwiftUI */
Color(red: 0.012, green: 0.259, blue: 0.875)
/* Android */
Color.parseColor("#0342df")Accessibility — WCAG contrast
Aa
#0342df on white: 7.37:1
AA ✓ pass · AA-large ✓ · AAA ✓
Aa
#0342df on black: 2.85:1
AA ✗ fail · AA-large ✗ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red1.2%
Green25.9%
Blue87.5%
CMYK percentages
Cyan98.7%
Magenta70.4%
Yellow0.0%
Key (black)12.5%
Color previews
#0342df text on a black background
contrast 2.85:1
Card sample
#0342df text on a white background
contrast 7.37:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #0342df;
Background color
Panel with #0342df background
background-color: #0342df;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #0342df;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(3, 66, 223, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(3, 66, 223, 0.45);
Border & gradient
Gradient panel
border: 3px solid #0342df; background: linear-gradient(135deg, #0342df, #5703DF);