Hex #5d90d9 or rgb(93,144,217) in RGB space is the tint of blue. It has hue angle of 215.32 degrees, value = 85 and saturation = 57. #5d90d9 can be obtained by mixing 4 colors: 3 drops of magenta, 2 drops of blue, 5 drops of cyan, 1 drop of white.
Nearest safe hex - #6699cc. Below you can see the block with #5d90d9 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #5d90d9 to the mixer and play with it.