#337fcc
a balanced, vivid blue · cool · closest name: steelblue
RGB
51, 127, 204
HSL
210°, 60%, 50%
CMYK
75, 38, 0, 20
Luminance
0.2024
Every format
| HEX | #337fcc |
| RGB | rgb(51, 127, 204) |
| HSL | hsl(210, 60%, 50%) |
| CMYK | cmyk(75%, 38%, 0%, 20%) |
| LAB | lab(52.1 3.1 -46.5) |
| LCH | lch(52.1 46.6 273.8) |
| OKLCH | oklch(0.587 0.140 251.7) |
Copy-ready code
/* CSS */
color: #337fcc;
background-color: #337fcc;
/* Tailwind (arbitrary) */
class="text-[#337fcc] bg-[#337fcc]"
/* SCSS */
$brand: #337fcc;
/* SwiftUI */
Color(red: 0.200, green: 0.498, blue: 0.800)
/* Android */
Color.parseColor("#337fcc")Accessibility — WCAG contrast
Aa
#337fcc on white: 4.16:1
AA ✗ fail · AA-large ✓ · AAA ✗
Aa
#337fcc on black: 5.05:1
AA ✓ pass · AA-large ✓ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red20.0%
Green49.8%
Blue80.0%
CMYK percentages
Cyan75.0%
Magenta37.7%
Yellow0.0%
Key (black)20.0%
Color previews
#337fcc text on a black background
contrast 5.05:1
Card sample
#337fcc text on a white background
contrast 4.16:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #337fcc;
Background color
Panel with #337fcc background
background-color: #337fcc;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #337fcc;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(51, 127, 204, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(51, 127, 204, 0.45);
Border & gradient
Gradient panel
border: 3px solid #337fcc; background: linear-gradient(135deg, #337fcc, #4D33CC);