#00309c
a dark, electric blue · cool · closest name: midnightblue
RGB
0, 48, 156
HSL
222°, 100%, 31%
CMYK
100, 69, 0, 39
Luminance
0.0451
Every format
| HEX | #00309c |
| RGB | rgb(0, 48, 156) |
| HSL | hsl(222, 100%, 31%) |
| CMYK | cmyk(100%, 69%, 0%, 39%) |
| LAB | lab(25.3 32.1 -61.7) |
| LCH | lch(25.3 69.5 297.5) |
| OKLCH | oklch(0.368 0.180 262.7) |
Copy-ready code
/* CSS */
color: #00309c;
background-color: #00309c;
/* Tailwind (arbitrary) */
class="text-[#00309c] bg-[#00309c]"
/* SCSS */
$brand: #00309c;
/* SwiftUI */
Color(red: 0.000, green: 0.188, blue: 0.612)
/* Android */
Color.parseColor("#00309c")Accessibility — WCAG contrast
Aa
#00309c on white: 11.04:1
AA ✓ pass · AA-large ✓ · AAA ✓
Aa
#00309c on black: 1.90:1
AA ✗ fail · AA-large ✗ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red0.0%
Green18.8%
Blue61.2%
CMYK percentages
Cyan100.0%
Magenta69.2%
Yellow0.0%
Key (black)38.8%
Color previews
#00309c text on a black background
contrast 1.90:1
Card sample
#00309c text on a white background
contrast 11.04:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #00309c;
Background color
Panel with #00309c background
background-color: #00309c;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #00309c;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(0, 48, 156, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(0, 48, 156, 0.45);
Border & gradient
Gradient panel
border: 3px solid #00309c; background: linear-gradient(135deg, #00309c, #38009C);