#003366
a deep, electric blue · cool · closest name: midnightblue
RGB
0, 51, 102
HSL
210°, 100%, 20%
CMYK
100, 50, 0, 60
Luminance
0.0333
Every format
| HEX | #003366 |
| RGB | rgb(0, 51, 102) |
| HSL | hsl(210, 100%, 20%) |
| CMYK | cmyk(100%, 50%, 0%, 60%) |
| LAB | lab(21.3 6.8 -34.2) |
| LCH | lch(21.3 34.9 281.3) |
| OKLCH | oklch(0.323 0.102 253.9) |
Copy-ready code
/* CSS */
color: #003366;
background-color: #003366;
/* Tailwind (arbitrary) */
class="text-[#003366] bg-[#003366]"
/* SCSS */
$brand: #003366;
/* SwiftUI */
Color(red: 0.000, green: 0.200, blue: 0.400)
/* Android */
Color.parseColor("#003366")Accessibility — WCAG contrast
Aa
#003366 on white: 12.61:1
AA ✓ pass · AA-large ✓ · AAA ✓
Aa
#003366 on black: 1.67:1
AA ✗ fail · AA-large ✗ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red0.0%
Green20.0%
Blue40.0%
CMYK percentages
Cyan100.0%
Magenta50.0%
Yellow0.0%
Key (black)60.0%
Color previews
#003366 text on a black background
contrast 1.67:1
Card sample
#003366 text on a white background
contrast 12.61:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #003366;
Background color
Panel with #003366 background
background-color: #003366;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #003366;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(0, 51, 102, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(0, 51, 102, 0.45);
Border & gradient
Gradient panel
border: 3px solid #003366; background: linear-gradient(135deg, #003366, #110066);