Hex #499180 or rgb(73,145,128) in RGB space is the tint of greenish cian. It has hue angle of 165.83 degrees, value = 57 and saturation = 50. #499180 can be obtained by mixing 4 colors: 1 drop of magenta, 5 drops of blue, 5 drops of green, 3 drops of white.
Nearest safe hex - #339999. Below you can see the block with #499180 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #499180 to the mixer and play with it.