Hex #377b98 or rgb(55,123,152) in RGB space is the tint of bluish cian. It has hue angle of 197.94 degrees, value = 60 and saturation = 64. #377b98 can be obtained by mixing 4 colors: 3 drops of red, 5 drops of blue, 5 drops of cyan, 1 drop of green.
Nearest safe hex - #336699. Below you can see the block with #377b98 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #377b98 to the mixer and play with it.