Hex #99cf88 or rgb(153,207,136) in RGB space is the tint of grass green. It has hue angle of 105.63 degrees, value = 81 and saturation = 34. #99cf88 can be obtained by mixing 4 colors: 2 drops of yellow, 1 drop of blue, 1 drop of cyan, 1 drop of white.
Nearest safe hex - #99cc99. Below you can see the block with #99cf88 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #99cf88 to the mixer and play with it.