Hex #39867b or rgb(57,134,123) in RGB space is the tint of greenish cian. It has hue angle of 171.43 degrees, value = 53 and saturation = 57. #39867b can be obtained by mixing 4 colors: 1 drop of yellow, 5 drops of blue, 2 drops of green, 1 drop of white.
Nearest safe hex - #339966. Below you can see the block with #39867b color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #39867b to the mixer and play with it.