Hex #377786 or rgb(55,119,134) in RGB space is the tint of bluish cian. It has hue angle of 191.39 degrees, value = 53 and saturation = 59. #377786 can be obtained by mixing 4 colors: 3 drops of red, 5 drops of blue, 4 drops of cyan, 2 drops of green.
Nearest safe hex - #336699. Below you can see the block with #377786 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #377786 to the mixer and play with it.