Hex #2b57b9 or rgb(43,87,185) in RGB space is the tint of blue violet. It has hue angle of 221.41 degrees, value = 73 and saturation = 77. #2b57b9 can be obtained by mixing 3 colors: 1 drop of magenta, 4 drops of blue, 1 drop of cyan.
Nearest safe hex - #3366cc. Below you can see the block with #2b57b9 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #2b57b9 to the mixer and play with it.