Hex #499580 or rgb(73,149,128) in RGB space is the tint of greenish cian. It has hue angle of 163.42 degrees, value = 58 and saturation = 51. #499580 can be obtained by mixing 4 colors: 1 drop of red, 3 drops of magenta, 5 drops of cyan, 5 drops of green.
Nearest safe hex - #339999. Below you can see the block with #499580 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #499580 to the mixer and play with it.