Hex #74858b or rgb(116,133,139) in RGB space is the tint of bluish cian. It has hue angle of 195.65 degrees, value = 55 and saturation = 17. #74858b can be obtained by mixing 4 colors: 3 drops of red, 4 drops of cyan, 2 drops of white, 2 drops of black.
Nearest safe hex - #669999. Below you can see the block with #74858b color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #74858b to the mixer and play with it.