Hex #40726a or rgb(64,114,106) in RGB space is the tint of greenish cian. It has hue angle of 170.40 degrees, value = 45 and saturation = 44. #40726a can be obtained by mixing 4 colors: 3 drops of red, 5 drops of cyan, 1 drop of green, 3 drops of black.
Nearest safe hex - #336666. Below you can see the block with #40726a color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #40726a to the mixer and play with it.