Hex #498900 or rgb(73,137,0) in RGB space is the tint of olive. It has hue angle of 88.03 degrees, value = 54 and saturation = 100. #498900 can be obtained by mixing 4 colors: 1 drop of yellow, 1 drop of red, 4 drops of green, 1 drop of black.
Nearest safe hex - #339900. Below you can see the block with #498900 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #498900 to the mixer and play with it.