#0309c9
a dark, electric blue · warm · closest name: blue
RGB
3, 9, 201
HSL
238°, 97%, 40%
CMYK
99, 96, 0, 21
Luminance
0.0443
Every format
| HEX | #0309c9 |
| RGB | rgb(3, 9, 201) |
| HSL | hsl(238, 97%, 40%) |
| CMYK | cmyk(99%, 96%, 0%, 21%) |
| LAB | lab(25.1 64.3 -89.0) |
| LCH | lch(25.1 109.8 305.8) |
| OKLCH | oklch(0.383 0.259 264.5) |
Copy-ready code
/* CSS */
color: #0309c9;
background-color: #0309c9;
/* Tailwind (arbitrary) */
class="text-[#0309c9] bg-[#0309c9]"
/* SCSS */
$brand: #0309c9;
/* SwiftUI */
Color(red: 0.012, green: 0.035, blue: 0.788)
/* Android */
Color.parseColor("#0309c9")Accessibility — WCAG contrast
Aa
#0309c9 on white: 11.13:1
AA ✓ pass · AA-large ✓ · AAA ✓
Aa
#0309c9 on black: 1.89:1
AA ✗ fail · AA-large ✗ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red1.2%
Green3.5%
Blue78.8%
CMYK percentages
Cyan98.5%
Magenta95.5%
Yellow0.0%
Key (black)21.2%
Color previews
#0309c9 text on a black background
contrast 1.89:1
Card sample
#0309c9 text on a white background
contrast 11.13:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #0309c9;
Background color
Panel with #0309c9 background
background-color: #0309c9;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #0309c9;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(3, 9, 201, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(3, 9, 201, 0.45);
Border & gradient
Gradient panel
border: 3px solid #0309c9; background: linear-gradient(135deg, #0309c9, #8103C9);