#3373df
a balanced, vivid blue · cool · closest name: royalblue
RGB
51, 115, 223
HSL
218°, 73%, 54%
CMYK
77, 48, 0, 13
Luminance
0.1829
Every format
| HEX | #3373df |
| RGB | rgb(51, 115, 223) |
| HSL | hsl(218, 73%, 54%) |
| CMYK | cmyk(77%, 48%, 0%, 13%) |
| LAB | lab(49.9 17.5 -60.9) |
| LCH | lch(49.9 63.4 286.1) |
| OKLCH | oklch(0.573 0.178 260.2) |
Copy-ready code
/* CSS */
color: #3373df;
background-color: #3373df;
/* Tailwind (arbitrary) */
class="text-[#3373df] bg-[#3373df]"
/* SCSS */
$brand: #3373df;
/* SwiftUI */
Color(red: 0.200, green: 0.451, blue: 0.875)
/* Android */
Color.parseColor("#3373df")Accessibility — WCAG contrast
Aa
#3373df on white: 4.51:1
AA ✓ pass · AA-large ✓ · AAA ✗
Aa
#3373df on black: 4.66:1
AA ✓ pass · AA-large ✓ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red20.0%
Green45.1%
Blue87.5%
CMYK percentages
Cyan77.1%
Magenta48.4%
Yellow0.0%
Key (black)12.5%
Color previews
#3373df text on a black background
contrast 4.66:1
Card sample
#3373df text on a white background
contrast 4.51:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #3373df;
Background color
Panel with #3373df background
background-color: #3373df;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #3373df;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(51, 115, 223, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(51, 115, 223, 0.45);
Border & gradient
Gradient panel
border: 3px solid #3373df; background: linear-gradient(135deg, #3373df, #6633DF);