Hex #1c78b4 or rgb(28,120,180) in RGB space is the tint of blue. It has hue angle of 203.68 degrees, value = 71 and saturation = 84. #1c78b4 can be obtained by mixing 4 colors: 5 drops of blue, 2 drops of cyan, 1 drop of white, 1 drop of black.
Nearest safe hex - #3366cc. Below you can see the block with #1c78b4 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #1c78b4 to the mixer and play with it.