#337cfd
a balanced, electric blue · cool · closest name: royalblue
RGB
51, 124, 253
HSL
218°, 98%, 60%
CMYK
80, 51, 0, 1
Luminance
0.2221
Every format
| HEX | #337cfd |
| RGB | rgb(51, 124, 253) |
| HSL | hsl(218, 98%, 60%) |
| CMYK | cmyk(80%, 51%, 0%, 1%) |
| LAB | lab(54.3 23.0 -70.5) |
| LCH | lch(54.3 74.2 288.1) |
| OKLCH | oklch(0.613 0.206 260.8) |
Copy-ready code
/* CSS */
color: #337cfd;
background-color: #337cfd;
/* Tailwind (arbitrary) */
class="text-[#337cfd] bg-[#337cfd]"
/* SCSS */
$brand: #337cfd;
/* SwiftUI */
Color(red: 0.200, green: 0.486, blue: 0.992)
/* Android */
Color.parseColor("#337cfd")Accessibility — WCAG contrast
Aa
#337cfd on white: 3.86:1
AA ✗ fail · AA-large ✓ · AAA ✗
Aa
#337cfd on black: 5.44:1
AA ✓ pass · AA-large ✓ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red20.0%
Green48.6%
Blue99.2%
CMYK percentages
Cyan79.8%
Magenta51.0%
Yellow0.0%
Key (black)0.8%
Color previews
#337cfd text on a black background
contrast 5.44:1
Card sample
#337cfd text on a white background
contrast 3.86:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #337cfd;
Background color
Panel with #337cfd background
background-color: #337cfd;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #337cfd;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(51, 124, 253, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(51, 124, 253, 0.45);
Border & gradient
Gradient panel
border: 3px solid #337cfd; background: linear-gradient(135deg, #337cfd, #7133FD);