Hex #74838b or rgb(116,131,139) in RGB space is the tint of bluish cian. It has hue angle of 200.87 degrees, value = 55 and saturation = 17. #74838b can be obtained by mixing 4 colors: 4 drops of red, 5 drops of cyan, 1 drop of white, 1 drop of black.
Nearest safe hex - #669999. Below you can see the block with #74838b color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #74838b to the mixer and play with it.