Hex #177c5d or rgb(23,124,93) in RGB space is the tint of greenish cian. It has hue angle of 161.58 degrees, value = 49 and saturation = 81. #177c5d can be obtained by mixing 4 colors: 1 drop of yellow, 4 drops of cyan, 1 drop of green, 5 drops of black.
Nearest safe hex - #006666. Below you can see the block with #177c5d color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #177c5d to the mixer and play with it.