Hex #12513d or rgb(18,81,61) in RGB space is the tint of greenish cian. It has hue angle of 160.95 degrees, value = 32 and saturation = 78. #12513d can be obtained by mixing 4 colors: 1 drop of yellow, 5 drops of blue, 3 drops of green, 5 drops of black.
Nearest safe hex - #006633. Below you can see the block with #12513d color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #12513d to the mixer and play with it.