Hex #405875 or rgb(64,88,117) in RGB space is the tint of blue. It has hue angle of 212.83 degrees, value = 46 and saturation = 45. #405875 can be obtained by mixing 4 colors: 2 drops of red, 4 drops of blue, 1 drop of cyan, 1 drop of green.
Nearest safe hex - #336666. Below you can see the block with #405875 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #405875 to the mixer and play with it.