Hex #145742 or rgb(20,87,66) in RGB space is the tint of greenish cian. It has hue angle of 161.19 degrees, value = 34 and saturation = 77. #145742 can be obtained by mixing 4 colors: 1 drop of yellow, 5 drops of blue, 3 drops of green, 4 drops of black.
Nearest safe hex - #006633. Below you can see the block with #145742 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #145742 to the mixer and play with it.