#333399
a dark, vivid blue · warm · closest name: midnightblue
RGB
51, 51, 153
HSL
240°, 50%, 40%
CMYK
67, 67, 0, 40
Luminance
0.0537
Every format
| HEX | #333399 |
| RGB | rgb(51, 51, 153) |
| HSL | hsl(240, 50%, 40%) |
| CMYK | cmyk(67%, 67%, 0%, 40%) |
| LAB | lab(27.8 33.2 -55.7) |
| LCH | lch(27.8 64.8 300.8) |
| OKLCH | oklch(0.391 0.162 275.9) |
Copy-ready code
/* CSS */
color: #333399;
background-color: #333399;
/* Tailwind (arbitrary) */
class="text-[#333399] bg-[#333399]"
/* SCSS */
$brand: #333399;
/* SwiftUI */
Color(red: 0.200, green: 0.200, blue: 0.600)
/* Android */
Color.parseColor("#333399")Accessibility — WCAG contrast
Aa
#333399 on white: 10.12:1
AA ✓ pass · AA-large ✓ · AAA ✓
Aa
#333399 on black: 2.07:1
AA ✗ fail · AA-large ✗ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red20.0%
Green20.0%
Blue60.0%
CMYK percentages
Cyan66.7%
Magenta66.7%
Yellow0.0%
Key (black)40.0%
Color previews
#333399 text on a black background
contrast 2.07:1
Card sample
#333399 text on a white background
contrast 10.12:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #333399;
Background color
Panel with #333399 background
background-color: #333399;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #333399;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(51, 51, 153, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(51, 51, 153, 0.45);
Border & gradient
Gradient panel
border: 3px solid #333399; background: linear-gradient(135deg, #333399, #773399);