Hex #129567 or rgb(18,149,103) in RGB space is the tint of greenish cian. It has hue angle of 158.93 degrees, value = 58 and saturation = 88. #129567 can be obtained by mixing 4 colors: 1 drop of magenta, 5 drops of cyan, 5 drops of green, 3 drops of black.
Nearest safe hex - #009966. Below you can see the block with #129567 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #129567 to the mixer and play with it.