Hex #99bd99 or rgb(153,189,153) in RGB space is the tint of green. It has hue angle of 120.00 degrees, value = 74 and saturation = 19. #99bd99 can be obtained by mixing 3 colors: 1 drop of green, 3 drops of white, 1 drop of black.
Nearest safe hex - #99cc99. Below you can see the block with #99bd99 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #99bd99 to the mixer and play with it.