#337ef1
a balanced, electric blue · cool · closest name: dodgerblue
RGB
51, 126, 241
HSL
216°, 87%, 57%
CMYK
79, 48, 0, 6
Luminance
0.2198
Every format
| HEX | #337ef1 |
| RGB | rgb(51, 126, 241) |
| HSL | hsl(216, 87%, 57%) |
| CMYK | cmyk(79%, 48%, 0%, 6%) |
| LAB | lab(54.0 17.3 -64.3) |
| LCH | lch(54.0 66.6 285.1) |
| OKLCH | oklch(0.609 0.188 259.1) |
Copy-ready code
/* CSS */
color: #337ef1;
background-color: #337ef1;
/* Tailwind (arbitrary) */
class="text-[#337ef1] bg-[#337ef1]"
/* SCSS */
$brand: #337ef1;
/* SwiftUI */
Color(red: 0.200, green: 0.494, blue: 0.945)
/* Android */
Color.parseColor("#337ef1")Accessibility — WCAG contrast
Aa
#337ef1 on white: 3.89:1
AA ✗ fail · AA-large ✓ · AAA ✗
Aa
#337ef1 on black: 5.40:1
AA ✓ pass · AA-large ✓ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red20.0%
Green49.4%
Blue94.5%
CMYK percentages
Cyan78.8%
Magenta47.7%
Yellow0.0%
Key (black)5.5%
Color previews
#337ef1 text on a black background
contrast 5.40:1
Card sample
#337ef1 text on a white background
contrast 3.89:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #337ef1;
Background color
Panel with #337ef1 background
background-color: #337ef1;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #337ef1;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(51, 126, 241, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(51, 126, 241, 0.45);
Border & gradient
Gradient panel
border: 3px solid #337ef1; background: linear-gradient(135deg, #337ef1, #6733F1);