#337ccc
a balanced, vivid blue · cool · closest name: steelblue
RGB
51, 124, 204
HSL
211°, 60%, 50%
CMYK
75, 39, 0, 20
Luminance
0.1948
Every format
| HEX | #337ccc |
| RGB | rgb(51, 124, 204) |
| HSL | hsl(211, 60%, 50%) |
| CMYK | cmyk(75%, 39%, 0%, 20%) |
| LAB | lab(51.2 4.9 -47.9) |
| LCH | lch(51.2 48.1 275.9) |
| OKLCH | oklch(0.580 0.143 253.2) |
Copy-ready code
/* CSS */
color: #337ccc;
background-color: #337ccc;
/* Tailwind (arbitrary) */
class="text-[#337ccc] bg-[#337ccc]"
/* SCSS */
$brand: #337ccc;
/* SwiftUI */
Color(red: 0.200, green: 0.486, blue: 0.800)
/* Android */
Color.parseColor("#337ccc")Accessibility — WCAG contrast
Aa
#337ccc on white: 4.29:1
AA ✗ fail · AA-large ✓ · AAA ✗
Aa
#337ccc on black: 4.90:1
AA ✓ pass · AA-large ✓ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red20.0%
Green48.6%
Blue80.0%
CMYK percentages
Cyan75.0%
Magenta39.2%
Yellow0.0%
Key (black)20.0%
Color previews
#337ccc text on a black background
contrast 4.90:1
Card sample
#337ccc text on a white background
contrast 4.29:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #337ccc;
Background color
Panel with #337ccc background
background-color: #337ccc;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #337ccc;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(51, 124, 204, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(51, 124, 204, 0.45);
Border & gradient
Gradient panel
border: 3px solid #337ccc; background: linear-gradient(135deg, #337ccc, #5033CC);