#337799
a dark, vivid blue · cool · closest name: steelblue
RGB
51, 119, 153
HSL
200°, 50%, 40%
CMYK
67, 22, 0, 40
Luminance
0.1620
Every format
| HEX | #337799 |
| RGB | rgb(51, 119, 153) |
| HSL | hsl(200, 50%, 40%) |
| CMYK | cmyk(67%, 22%, 0%, 40%) |
| LAB | lab(47.2 -10.3 -24.7) |
| LCH | lch(47.2 26.8 247.3) |
| OKLCH | oklch(0.541 0.086 233.3) |
Copy-ready code
/* CSS */
color: #337799;
background-color: #337799;
/* Tailwind (arbitrary) */
class="text-[#337799] bg-[#337799]"
/* SCSS */
$brand: #337799;
/* SwiftUI */
Color(red: 0.200, green: 0.467, blue: 0.600)
/* Android */
Color.parseColor("#337799")Accessibility — WCAG contrast
Aa
#337799 on white: 4.95:1
AA ✓ pass · AA-large ✓ · AAA ✗
Aa
#337799 on black: 4.24:1
AA ✗ fail · AA-large ✓ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red20.0%
Green46.7%
Blue60.0%
CMYK percentages
Cyan66.7%
Magenta22.2%
Yellow0.0%
Key (black)40.0%
Color previews
#337799 text on a black background
contrast 4.24:1
Card sample
#337799 text on a white background
contrast 4.95:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #337799;
Background color
Panel with #337799 background
background-color: #337799;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #337799;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(51, 119, 153, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(51, 119, 153, 0.45);
Border & gradient
Gradient panel
border: 3px solid #337799; background: linear-gradient(135deg, #337799, #333399);